[PHP] Variable name for constants?
I've been experimenting with having a varaible constant name, but failed miserably... Can I please have a pointer? What I'm trying to do is something like this: $name = home; Then read the constant IMG_HOME, like IMG_$name, I'm not sure I make myself understood, but I hope so.. Anders. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Variable name for constants?
Anders Norrbring wrote: I've been experimenting with having a varaible constant name, but failed miserably... Can I please have a pointer? What I'm trying to do is something like this: $name = home; Then read the constant IMG_HOME, like IMG_$name, I'm not sure I make myself understood, but I hope so.. Anders. I dont think you can do that with a constant, but you can do this a normal variable: $test = 'the value of test variable'; $var ='test'; echo $$var; // will echo $test; Clive -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Variable name for constants?
I dont think you can do that with a constant, but you can do this a
normal variable:
I stand under correction form my previous email, it can be done:
define('TEST', 'the value of constant TEST');
$var= 'TEST';
echo constant($var);
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Variable name for constants?
... and in that way, you can create the name of the constant as you please:
$VAR_IMG = 'HOME';
define('IMG_HOME', 'pic.jpg');
echo(constant('IMG_'.$VAR_IMG));
SanTa
- Original Message -
From: clive [EMAIL PROTECTED]
To: PHP LIST php-general@lists.php.net
Sent: Thursday, December 11, 2008 9:18 AM
Subject: Re: [PHP] Variable name for constants?
I dont think you can do that with a constant, but you can do this a
normal variable:
I stand under correction form my previous email, it can be done:
define('TEST', 'the value of constant TEST');
$var= 'TEST';
echo constant($var);
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
SV: [PHP] Variable name for constants?
I dont think you can do that with a constant, but you can do this a
normal variable:
I stand under correction form my previous email, it can be done:
define('TEST', 'the value of constant TEST');
$var= 'TEST';
echo constant($var);
This may be too early in the morning for me, but I don't get it.. ;-)
Say I have these definitions;
define(IMG_HOME, pic1.png);
define(IMG_AWAY, pic2.png);
define(IMG_ELSE, pic3.png);
Then a function should present the right image based on a variable
(pseudocode):
function show($name) {
present_img( IMG_$name );
}
If I understand right (probably not...), then I could concat and do like
this?
present_img( constant(IMG_ . $name) );
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
SV: [PHP] Variable name for constants?
... and in that way, you can create the name of the constant as you
please:
$VAR_IMG = 'HOME';
define('IMG_HOME', 'pic.jpg');
echo(constant('IMG_'.$VAR_IMG));
SanTa
- Original Message -
From: clive [EMAIL PROTECTED]
To: PHP LIST php-general@lists.php.net
Sent: Thursday, December 11, 2008 9:18 AM
Subject: Re: [PHP] Variable name for constants?
I dont think you can do that with a constant, but you can do this a
normal variable:
I stand under correction form my previous email, it can be done:
define('TEST', 'the value of constant TEST');
$var= 'TEST';
echo constant($var);
Ah.. Seems like I figured it out right then with the hint from Clive.. ;-)
Thanks a lot guys! I'll out this to the test a little later!
Have a great weekend,
Anders.
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] PECL JSON package
Hi All, I have just installed the PECL JSON package, or at least think I have!! But how do I use it?? I was expecting /usr/share/pear/Services/JSON.php to be found on my system for include but not so. My system tells me I have 1.2.1 successfully installed but I cannot find any docs that tell me how to make use of it. I am running PHP 5.1.6 at present. TIA Phil. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PECL JSON package
Phil Ewington - iModel wrote: Hi All, I have just installed the PECL JSON package, or at least think I have!! But how do I use it?? I was expecting /usr/share/pear/Services/JSON.php to be found on my system for include but not so. My system tells me I have 1.2.1 successfully installed but I cannot find any docs that tell me how to make use of it. I am running PHP 5.1.6 at present. TIA Phil. OK, seems I am confusing PECL and PEAR. Have now configured extension using phpize and enabled in php.ini. - Phil. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PECL JSON package
On Thu, Dec 11, 2008 at 5:43 AM, Phil Ewington - iModel [EMAIL PROTECTED] wrote: Phil Ewington - iModel wrote: Hi All, I have just installed the PECL JSON package, or at least think I have!! But how do I use it?? I was expecting /usr/share/pear/Services/JSON.php to be found on my system for include but not so. My system tells me I have 1.2.1 successfully installed but I cannot find any docs that tell me how to make use of it. I am running PHP 5.1.6 at present. TIA Phil. OK, seems I am confusing PECL and PEAR. Have now configured extension using phpize and enabled in php.ini. - Phil. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php If you're using the pecl version, it is json_encode(). If you're using the pear version you say require_once 'Services/JSON.php'; $json = new Services_JSON(); $output = $json-encode($value); If you're using php5, you should have json in the build unless it was disabled for some reason. If you're going to be using it a lot, you're really going to want the speed of the c version. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Poll of Sorts: Application Frameworks--Zend, Cake etc
Hey Everyone, I am wondering if using a framework such as one of these may make my life easier, which do any of you use and what has been your experience with the learning curve of them? I just put Cake on my local server, basically I want to know which is easiest? LOL... Terion
Re: [PHP] Poll of Sorts: Application Frameworks--Zend, Cake etc
On Thu, Dec 11, 2008 at 9:56 AM, Terion Miller [EMAIL PROTECTED] wrote: Hey Everyone, I am wondering if using a framework such as one of these may make my life easier, which do any of you use and what has been your experience with the learning curve of them? I just put Cake on my local server, basically I want to know which is easiest? LOL... Terion Define easiest. What is it that you need to code? If you mean cookie cutter sites that have been done a million times with minimal flexibility... :) I'm in the same boat as you though. I don't know which one meets the needs I have the best. There's stuff like cake which is really easy to start up, then there's stuff like symphony that will let you do anything, but you really have to work at it. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Can GD make a JPG thumbnail of a PDF?
If system(convert -version) does nothing, it is probably erroring out. Mess around with exec and using 21 to try to get the error message. It's going to boil down to paths and permissions. The PHP user probably doesn't have convert in $PATH. Use a FULL PATH for system/exec calls for *any* path, and within *any* script being called. Anything else is just a time bomb waiting to blow up on you. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Poll of Sorts: Application Frameworks--Zend, Cake etc
On Thu, Dec 11, 2008 at 10:15 AM, Eric Butera [EMAIL PROTECTED] wrote: On Thu, Dec 11, 2008 at 9:56 AM, Terion Miller [EMAIL PROTECTED] wrote: Hey Everyone, I am wondering if using a framework such as one of these may make my life easier, which do any of you use and what has been your experience with the learning curve of them? I just put Cake on my local server, basically I want to know which is easiest? LOL... Terion Define easiest. What is it that you need to code? If you mean cookie cutter sites that have been done a million times with minimal flexibility... :) I'm in the same boat as you though. I don't know which one meets the needs I have the best. There's stuff like cake which is really easy to start up, then there's stuff like symphony that will let you do anything, but you really have to work at it. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php There are definite learning curves when picking these up. symfony and ZF have the largest because they either do more (symfony) or are designed to be used piecemeal (ZF) CodeIgnitor is one of the easiest ones to start using with Cake not far behind -- Bastien Cat, the other other white meat
Re: [PHP] Poll of Sorts: Application Frameworks--Zend, Cake etc
On Thu, Dec 11, 2008 at 9:22 AM, Bastien Koert [EMAIL PROTECTED] wrote: On Thu, Dec 11, 2008 at 10:15 AM, Eric Butera [EMAIL PROTECTED]wrote: On Thu, Dec 11, 2008 at 9:56 AM, Terion Miller [EMAIL PROTECTED] wrote: Hey Everyone, I am wondering if using a framework such as one of these may make my life easier, which do any of you use and what has been your experience with the learning curve of them? I just put Cake on my local server, basically I want to know which is easiest? LOL... Terion Define easiest. What is it that you need to code? If you mean cookie cutter sites that have been done a million times with minimal flexibility... :) I'm in the same boat as you though. I don't know which one meets the needs I have the best. There's stuff like cake which is really easy to start up, then there's stuff like symphony that will let you do anything, but you really have to work at it. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php There are definite learning curves when picking these up. symfony and ZF have the largest because they either do more (symfony) or are designed to be used piecemeal (ZF) CodeIgnitor is one of the easiest ones to start using with Cake not far behind -- Bastien Cat, the other other white meat I'll have to check out CodeIgnitor, I can say that with my limited ability I have set up Cake and made a db connection within 10 mins, and I'm not entirely confused and frustrated yet so thats a good sign ...lol terion
Re: [PHP] Poll of Sorts: Application Frameworks--Zend, Cake etc
On Thu, Dec 11, 2008 at 10:22 AM, Bastien Koert [EMAIL PROTECTED] wrote: On Thu, Dec 11, 2008 at 10:15 AM, Eric Butera [EMAIL PROTECTED] wrote: On Thu, Dec 11, 2008 at 9:56 AM, Terion Miller [EMAIL PROTECTED] wrote: Hey Everyone, I am wondering if using a framework such as one of these may make my life easier, which do any of you use and what has been your experience with the learning curve of them? I just put Cake on my local server, basically I want to know which is easiest? LOL... Terion Define easiest. What is it that you need to code? If you mean cookie cutter sites that have been done a million times with minimal flexibility... :) I'm in the same boat as you though. I don't know which one meets the needs I have the best. There's stuff like cake which is really easy to start up, then there's stuff like symphony that will let you do anything, but you really have to work at it. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php There are definite learning curves when picking these up. symfony and ZF have the largest because they either do more (symfony) or are designed to be used piecemeal (ZF) CodeIgnitor is one of the easiest ones to start using with Cake not far behind -- Bastien Cat, the other other white meat One huge part of this that I didn't mention before is the community around the frameworks too. Do they have good docs, examples, stuff like that. Can you ask questions and get quality answers? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] how to not show login info in the url ...what am I looking for?
At 10:12 AM -0500 12/10/08, APseudoUtopia wrote: On Wed, Dec 10, 2008 at 10:03 AM, tedd [EMAIL PROTECTED] wrote: In my mind, hacking a site (without doing damage) is a good introduction to a client. *Ahem*You mean 'cracking'? :-P *Ahem*... You mean to stick your tongue out at me? That's one definitions of using :-P You see, there's all sorts of definitions for everything. When I say Hack a site I mean to do something to get the site to provide an unintended result as expected by the author. Much like using CSS Hacks to get browsers to do something that was not intended by the original designers. On the other hand, my understanding of cracking means to crack some type of encryption. Thus, the reason why I did not say cracking the site instead of hacking the site. Cheers, tedd -- --- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] how to not show login info in the url ...what am I looking for?
On 11 Dec 2008, at 16:05, tedd wrote: At 10:12 AM -0500 12/10/08, APseudoUtopia wrote: On Wed, Dec 10, 2008 at 10:03 AM, tedd [EMAIL PROTECTED] wrote: In my mind, hacking a site (without doing damage) is a good introduction to a client. *Ahem*You mean 'cracking'? :-P *Ahem*... You mean to stick your tongue out at me? That's one definitions of using :-P You see, there's all sorts of definitions for everything. When I say Hack a site I mean to do something to get the site to provide an unintended result as expected by the author. Much like using CSS Hacks to get browsers to do something that was not intended by the original designers. On the other hand, my understanding of cracking means to crack some type of encryption. Thus, the reason why I did not say cracking the site instead of hacking the site. Hacking: Getting something to do something it was not designed to do. Cracking: Getting something to do something it was specifically designed to prevent. IMHO. -Stut -- http://stut.net/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] how to not show login info in the url ...what am I looking for?
On Thu, 2008-12-11 at 11:05 -0500, tedd wrote: At 10:12 AM -0500 12/10/08, APseudoUtopia wrote: On Wed, Dec 10, 2008 at 10:03 AM, tedd [EMAIL PROTECTED] wrote: In my mind, hacking a site (without doing damage) is a good introduction to a client. *Ahem*You mean 'cracking'? :-P *Ahem*... You mean to stick your tongue out at me? That's one definitions of using :-P You see, there's all sorts of definitions for everything. When I say Hack a site I mean to do something to get the site to provide an unintended result as expected by the author. Much like using CSS Hacks to get browsers to do something that was not intended by the original designers. On the other hand, my understanding of cracking means to crack some type of encryption. Thus, the reason why I did not say cracking the site instead of hacking the site. Cracking is not just about encryption. It's about bypassing any kind of measure put in place to prevent someone from doing something. Hacking on the other hand does not embody this principle, although hacking may be employed to achieve cracking. Just because pop culture is completely ignorant to the difference, doesn't mean you as a member of the community need to jump on board and bleat like a sheep. If you intend to misuse hacker, then you should at least provide more detail such as white-, grey-, or black-hat. Cheers, Rob. -- http://www.interjinn.com Application and Templating Framework for PHP -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Poll of Sorts: Application Frameworks--Zend, Cake etc
On Thu, Dec 11, 2008 at 8:25 AM, Eric Butera [EMAIL PROTECTED] wrote: On Thu, Dec 11, 2008 at 10:22 AM, Bastien Koert [EMAIL PROTECTED] wrote: On Thu, Dec 11, 2008 at 10:15 AM, Eric Butera [EMAIL PROTECTED] wrote: On Thu, Dec 11, 2008 at 9:56 AM, Terion Miller [EMAIL PROTECTED] wrote: Hey Everyone, I am wondering if using a framework such as one of these may make my life easier, which do any of you use and what has been your experience with the learning curve of them? I just put Cake on my local server, basically I want to know which is easiest? LOL... Terion Define easiest. What is it that you need to code? If you mean cookie cutter sites that have been done a million times with minimal flexibility... :) I'm in the same boat as you though. I don't know which one meets the needs I have the best. There's stuff like cake which is really easy to start up, then there's stuff like symphony that will let you do anything, but you really have to work at it. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php There are definite learning curves when picking these up. symfony and ZF have the largest because they either do more (symfony) or are designed to be used piecemeal (ZF) CodeIgnitor is one of the easiest ones to start using with Cake not far behind -- Bastien Cat, the other other white meat One huge part of this that I didn't mention before is the community around the frameworks too. Do they have good docs, examples, stuff like that. Can you ask questions and get quality answers? i also take performance into consideration. heres a comparison between some of the aforementioned frameworks, http://www.avnetlabs.com/php/php-framework-comparison-benchmarks -nathan
Re: [PHP] Poll of Sorts: Application Frameworks--Zend, Cake etc
On Thu, Dec 11, 2008 at 12:12 PM, Nathan Nobbe [EMAIL PROTECTED] wrote: On Thu, Dec 11, 2008 at 8:25 AM, Eric Butera [EMAIL PROTECTED] wrote: On Thu, Dec 11, 2008 at 10:22 AM, Bastien Koert [EMAIL PROTECTED] wrote: On Thu, Dec 11, 2008 at 10:15 AM, Eric Butera [EMAIL PROTECTED] wrote: On Thu, Dec 11, 2008 at 9:56 AM, Terion Miller [EMAIL PROTECTED] wrote: Hey Everyone, I am wondering if using a framework such as one of these may make my life easier, which do any of you use and what has been your experience with the learning curve of them? I just put Cake on my local server, basically I want to know which is easiest? LOL... Terion Define easiest. What is it that you need to code? If you mean cookie cutter sites that have been done a million times with minimal flexibility... :) I'm in the same boat as you though. I don't know which one meets the needs I have the best. There's stuff like cake which is really easy to start up, then there's stuff like symphony that will let you do anything, but you really have to work at it. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php There are definite learning curves when picking these up. symfony and ZF have the largest because they either do more (symfony) or are designed to be used piecemeal (ZF) CodeIgnitor is one of the easiest ones to start using with Cake not far behind -- Bastien Cat, the other other white meat One huge part of this that I didn't mention before is the community around the frameworks too. Do they have good docs, examples, stuff like that. Can you ask questions and get quality answers? i also take performance into consideration. heres a comparison between some of the aforementioned frameworks, http://www.avnetlabs.com/php/php-framework-comparison-benchmarks -nathan Here's another http://www.yiiframework.com/performance/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Foreign Keys Question
Hi gang: I know this is a MySQL question, but I get a better reply from this group than the MySQL list (no offense meant to that list) -- In any event, here goes. I currently have a project that's a classic example of a relational database, namely the course, student, and instructor problem. I have my database set-up such that there are tables for courses, students, and instructors -- each table with it's own unique/primary ID. The Course table has a field for the Instructor, which is the primary ID found in the Instructor's table. Likewise, the Course table also has fields for up-to four students (a private tutorial service). These will be filled by the the respective primary ID's found in the Student's table. This configuration is Second Normal Form. The Course table also has fields for date, times and such. If I want to see the schedule for any specific day, I simply open the Course table and search for date and time. From that I can retrieve the Student ID's and the Instructor ID. From those, I open the Student table and pull out all students who attend the class and then open the Instructor's table and pull out what data I need re the Instructor. Everything works. My question is, can using Foreign Keys make this work better? Can I retrieve all this data in one query? (I think that's what foreign keys do -- but, I'm assuming that). I believe I can create the Course table (excluding everything not germane) like so: INDEX (student_id), FOREIGN KEY (student_id) REFERENCES (students(id)), INDEX (instructor_id), FOREIGN KEY (instructor_id) REFERENCES (instructors(id)), But how do I use Foreign Keys to retrieve data? What is the specific query to pull out data from all three tables at once? Does anyone have any example code to show me the actual syntax? Thanks and Cheers, tedd -- --- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] how to not show login info in the url ...what am I looking for?
At 11:23 AM -0500 12/11/08, Robert Cummings wrote: On Thu, 2008-12-11 at 11:05 -0500, tedd wrote: When I say Hack a site I mean to do something to get the site to provide an unintended result as expected by the author. Much like using CSS Hacks to get browsers to do something that was not intended by the original designers. On the other hand, my understanding of cracking means to crack some type of encryption. Thus, the reason why I did not say cracking the site instead of hacking the site. Cracking is not just about encryption. It's about bypassing any kind of measure put in place to prevent someone from doing something. Hacking on the other hand does not embody this principle, although hacking may be employed to achieve cracking. Just because pop culture is completely ignorant to the difference, doesn't mean you as a member of the community need to jump on board and bleat like a sheep. If you intend to misuse hacker, then you should at least provide more detail such as white-, grey-, or black-hat. Cheers, Rob. Okay, I shall adjust my fracking terminology. :-) Cheers, tedd -- --- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Foreign Keys Question
On Thu, Dec 11, 2008 at 12:56 PM, tedd tedd.sperl...@gmail.com wrote: Hi gang: I know this is a MySQL question, but I get a better reply from this group than the MySQL list (no offense meant to that list) -- In any event, here goes. I currently have a project that's a classic example of a relational database, namely the course, student, and instructor problem. I have my database set-up such that there are tables for courses, students, and instructors -- each table with it's own unique/primary ID. The Course table has a field for the Instructor, which is the primary ID found in the Instructor's table. Likewise, the Course table also has fields for up-to four students (a private tutorial service). These will be filled by the the respective primary ID's found in the Student's table. This configuration is Second Normal Form. The Course table also has fields for date, times and such. If I want to see the schedule for any specific day, I simply open the Course table and search for date and time. From that I can retrieve the Student ID's and the Instructor ID. From those, I open the Student table and pull out all students who attend the class and then open the Instructor's table and pull out what data I need re the Instructor. Everything works. My question is, can using Foreign Keys make this work better? Can I retrieve all this data in one query? (I think that's what foreign keys do -- but, I'm assuming that). I believe I can create the Course table (excluding everything not germane) like so: INDEX (student_id), FOREIGN KEY (student_id) REFERENCES (students(id)), INDEX (instructor_id), FOREIGN KEY (instructor_id) REFERENCES (instructors(id)), But how do I use Foreign Keys to retrieve data? What is the specific query to pull out data from all three tables at once? Does anyone have any example code to show me the actual syntax? Thanks and Cheers, tedd -- --- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php Nope, You can't use Fks for this. Foreign keys are constraints and are used to limit the data in the table. If you were to put an FK on the courses table referencing the instructors table on the instructor id, the instructor id must exist in the instructor table before db will allow the entry of the instructor id in the courses table. The idea is to force data integrity in a system such that certain records can't be created without having the necessary backup data from another table. Joins should allow you to pull the data from the table in one query hth -- Bastien Cat, the other other white meat
Re: [PHP] Foreign Keys Question
Hey tedd --- Do I understand your structure correctly that you have something like: Courses (table) course_id, subject_id, student1_id, student2_id, student3_id, student4_id, etc. Is that right? Ken -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PECL JSON package
Eric Butera wrote: On Thu, Dec 11, 2008 at 5:43 AM, Phil Ewington - iModel phil.ewing...@i-model.co.uk wrote: Phil Ewington - iModel wrote: Hi All, I have just installed the PECL JSON package, or at least think I have!! But how do I use it?? I was expecting /usr/share/pear/Services/JSON.php to be found on my system for include but not so. My system tells me I have 1.2.1 successfully installed but I cannot find any docs that tell me how to make use of it. I am running PHP 5.1.6 at present. TIA Phil. OK, seems I am confusing PECL and PEAR. Have now configured extension using phpize and enabled in php.ini. - Phil. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php If you're using the pecl version, it is json_encode(). If you're using the pear version you say require_once 'Services/JSON.php'; $json = new Services_JSON(); $output = $json-encode($value); If you're using php5, you should have json in the build unless it was disabled for some reason. If you're going to be using it a lot, you're really going to want the speed of the c version. Yeah thanks. I am using the PECL version and have it compiled as an extension now working fine, just got confused with installing PEAR scripts. I have PHP 5.1.6, JSON only available in build from 5.2.0 I believe. - Phil. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Foreign Keys Question
At 12:29 PM -0600 12/11/08, phphelp -- kbk wrote: Hey tedd --- Do I understand your structure correctly that you have something like: Courses (table) course_id, subject_id, student1_id, student2_id, student3_id, student4_id, etc. Is that right? Ken Ken: That was right, but I think I've reconsidered. You see, Richard pointed out the error of my ways, namely: Student table has student data and ID -- as may records as there are students. Instructor table has instructor data and ID -- as may records as there are instructors. Course table has course data, ID and Instructor ID and Student ID -- but the number of records vary. While there will be only one record per Instructor and one pre Student, the Course table can have up to four records for each course depending upon actuall attendance. I think that makes more sense. As for my Foreign Keys Question, I think the answer is that it enforces rules upon the configuration (i.e., deleting, altering, and such), but does not provide any significant service beyond that. Cheers, tedd -- --- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Foreign Keys Question
On Thu, 2008-12-11 at 13:27 -0500, Bastien Koert wrote: On Thu, Dec 11, 2008 at 12:56 PM, tedd tedd.sperl...@gmail.com I believe I can create the Course table (excluding everything not germane) like so: INDEX (student_id), FOREIGN KEY (student_id) REFERENCES (students(id)), INDEX (instructor_id), FOREIGN KEY (instructor_id) REFERENCES (instructors(id)), But how do I use Foreign Keys to retrieve data? What is the specific query to pull out data from all three tables at once? Does anyone have any example code to show me the actual syntax? Nope, You can't use Fks for this. Foreign keys are constraints and are used to limit the data in the table. If you were to put an FK on the courses table referencing the instructors table on the instructor id, the instructor id must exist in the instructor table before db will allow the entry of the instructor id in the courses table. The idea is to force data integrity in a system such that certain records can't be created without having the necessary backup data from another table. Joins should allow you to pull the data from the table in one query You want to be careful using joins though. If you were to pull all that data in one shot using joins you would create a large data transfer mostly containing redundant data. Cheers, Rob. -- http://www.interjinn.com Application and Templating Framework for PHP -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Foreign Keys Question
At 1:48 PM -0500 12/11/08, Robert Cummings wrote: On Thu, 2008-12-11 at 13:27 -0500, Bastien Koert wrote: On Thu, Dec 11, 2008 at 12:56 PM, tedd tedd.sperl...@gmail.com Does anyone have any example code to show me the actual syntax? Joins should allow you to pull the data from the table in one query You want to be careful using joins though. If you were to pull all that data in one shot using joins you would create a large data transfer mostly containing redundant data. Cheers, Rob. Rob: Good point. Maybe my old way of doing that was the best. Simply get the ID's needed from one table and then open the necessary tables accordingly. In other words, stop worrying about the number of times I'm going to the store to buy things because going once might result in the things being too heavy for me to carry home -- if that makes sense. Cheers, tedd -- --- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Quick question regarding $_SESSION and header()
I should be able to set a session var and then do a header redirect right? Small bug regarding that and i just need to be sure. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Foreign Keys Question
On Thu, 2008-12-11 at 13:46 -0500, tedd wrote: At 12:29 PM -0600 12/11/08, phphelp -- kbk wrote: Hey tedd --- Do I understand your structure correctly that you have something like: Courses (table) course_id, subject_id, student1_id, student2_id, student3_id, student4_id, etc. Is that right? Ken Ken: That was right, but I think I've reconsidered. You see, Richard pointed out the error of my ways, namely: Student table has student data and ID -- as may records as there are students. Instructor table has instructor data and ID -- as may records as there are instructors. Course table has course data, ID and Instructor ID and Student ID -- but the number of records vary. While there will be only one record per Instructor and one pre Student, the Course table can have up to four records for each course depending upon actuall attendance. I think that makes more sense. Student attendance should be a table with rows for each student in attendance. If you want to limit the number make a check before adding another student. Don't hard code the number via fields like above or you'll find it overly ugly to add/remove students or even increase the number of allowed students. As it stands to allow 6 students you would have to add 2 more columns. With attendance controled by a table with a row for ewach attendance you would only need to update a configuration variable the determines the maximim number of allowed students in attendance. Cheers, Rob. -- http://www.interjinn.com Application and Templating Framework for PHP -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Quick question regarding $_SESSION and header()
On Thu, Dec 11, 2008 at 2:01 PM, Ólafur Waage olaf...@gmail.com wrote: I should be able to set a session var and then do a header redirect right? Small bug regarding that and i just need to be sure. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php Yep, what bug are you running into? Remember you have session_start() on the next page for it to be there. -- -Dan Joseph www.canishosting.com - Plans start @ $1.99/month. Build a man a fire, and he will be warm for the rest of the day. Light a man on fire, and will be warm for the rest of his life.
Re: [PHP] Foreign Keys Question
On Dec 11, 2008, at 12:55 PM, Robert Cummings wrote: On Thu, 2008-12-11 at 13:46 -0500, tedd wrote: At 12:29 PM -0600 12/11/08, phphelp -- kbk wrote: Hey tedd --- Do I understand your structure correctly that you have something like: Courses (table) course_id, subject_id, student1_id, student2_id, That was right, but I think I've reconsidered. You see, Richard pointed out the error of my ways, namely: Student attendance should be a table with rows for each student in attendance. If you want to limit the number make a check before adding another student. Don't hard code the number via fields like above or you'll find it overly ugly to add/remove students or even increase the Right, Rob --- As it happens I'm writing an application like this now, in late beta, ready to go live any day now. I call the table you are describing 'enrollment.' So: STUDENTS - student_id, - (rest of the fields) ENROLLMENT - enroll_id - student_id - course_id - role_in_class - (more fields) COURSE - course_id - subject_id - (more) Except I take it one more step: Instructors are just People, as are Students. The role_in_class field distinguishes what they are doing in the classroom. (We have more roles than those in our application.) Ken -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Foreign Keys Question
On Thu, 2008-12-11 at 13:56 -0500, tedd wrote: At 1:48 PM -0500 12/11/08, Robert Cummings wrote: On Thu, 2008-12-11 at 13:27 -0500, Bastien Koert wrote: On Thu, Dec 11, 2008 at 12:56 PM, tedd tedd.sperl...@gmail.com Does anyone have any example code to show me the actual syntax? Joins should allow you to pull the data from the table in one query You want to be careful using joins though. If you were to pull all that data in one shot using joins you would create a large data transfer mostly containing redundant data. Cheers, Rob. Rob: Good point. Maybe my old way of doing that was the best. Simply get the ID's needed from one table and then open the necessary tables accordingly. In other words, stop worrying about the number of times I'm going to the store to buy things because going once might result in the things being too heavy for me to carry home -- if that makes No, it's still good to think about the number of trips. For instance if you are getting the number of students in attendance you may as well join on the student table to get their individual data if you need it. Similarly, if for whatever reason you have 10 student IDs, but not the student information itself, but you need to get said information... you can just select them all in one query using an IN( id1, id2, ... ) clause. Cheers, Rob. -- http://www.interjinn.com Application and Templating Framework for PHP -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Quick question regarding $_SESSION and header()
On Thu, Dec 11, 2008 at 14:01, Ólafur Waage olaf...@gmail.com wrote: I should be able to set a session var and then do a header redirect right? Small bug regarding that and i just need to be sure. This isn't a bug in PHP, it's actually in adherance with HTTP standards (and current browser standards). Prior to doing a header() redirect, you have to force the cookie to be written with session_write_close(). -- /Daniel P. Brown http://www.parasane.net/ daniel.br...@parasane.net || danbr...@php.net 50% Off Hosting! http://www.pilotpig.net/specials.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Foreign Keys Question
At 1:55 PM -0500 12/11/08, Robert Cummings wrote: Student attendance should be a table with rows for each student in attendance. If you want to limit the number make a check before adding another student. Don't hard code the number via fields like above or you'll find it overly ugly to add/remove students or even increase the number of allowed students. As it stands to allow 6 students you would have to add 2 more columns. With attendance controled by a table with a row for ewach attendance you would only need to update a configuration variable the determines the maximim number of allowed students in attendance. Cheers, Rob. Rob: I see -- the solution is a table for courses, students, instructors and enrollment. The enrollment table will hold links to all (third normal). If I want to limit the number of students in a course, then just count the number of students enrolled in a specific course within the enrollment table and check that number against the maximum allowed before adding another enrollment record. Also, if a student cancels, then it's only a deletion of an enrollment record and all is right with the world. That's good. Sometimes it's good to talk things like this through -- clears the fuzzy thinking. Thanks, tedd -- --- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: [PHP-QA] Re: [PHP] Quick question regarding $_SESSION and header()
(Forwarding back to PHP General for the archives.) On Thu, Dec 11, 2008 at 14:31, Ólafur Waage olaf...@gmail.com wrote: Its fixed, thanks guys :) On Thu, Dec 11, 2008 at 7:16 PM, Daniel Brown danbr...@php.net wrote: On Thu, Dec 11, 2008 at 14:01, Ólafur Waage olaf...@gmail.com wrote: I should be able to set a session var and then do a header redirect right? Small bug regarding that and i just need to be sure. This isn't a bug in PHP, it's actually in adherance with HTTP standards (and current browser standards). Prior to doing a header() redirect, you have to force the cookie to be written with session_write_close(). -- /Daniel P. Brown http://www.parasane.net/ daniel.br...@parasane.net || danbr...@php.net 50% Off Hosting! http://www.pilotpig.net/specials.php -- PHP Quality Assurance Mailing List http://www.php.net/ To unsubscribe, visit: http://www.php.net/unsub.php -- /Daniel P. Brown http://www.parasane.net/ daniel.br...@parasane.net || danbr...@php.net 50% Off Hosting! http://www.pilotpig.net/specials.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: [PHP-QA] Re: [PHP] Quick question regarding $_SESSION and header()
Whoops, sent the thanks to the wrong list :P On Thu, Dec 11, 2008 at 7:33 PM, Daniel Brown danbr...@php.net wrote: (Forwarding back to PHP General for the archives.) On Thu, Dec 11, 2008 at 14:31, Ólafur Waage olaf...@gmail.com wrote: Its fixed, thanks guys :) On Thu, Dec 11, 2008 at 7:16 PM, Daniel Brown danbr...@php.net wrote: On Thu, Dec 11, 2008 at 14:01, Ólafur Waage olaf...@gmail.com wrote: I should be able to set a session var and then do a header redirect right? Small bug regarding that and i just need to be sure. This isn't a bug in PHP, it's actually in adherance with HTTP standards (and current browser standards). Prior to doing a header() redirect, you have to force the cookie to be written with session_write_close(). -- /Daniel P. Brown http://www.parasane.net/ daniel.br...@parasane.net || danbr...@php.net 50% Off Hosting! http://www.pilotpig.net/specials.php -- PHP Quality Assurance Mailing List http://www.php.net/ To unsubscribe, visit: http://www.php.net/unsub.php -- /Daniel P. Brown http://www.parasane.net/ daniel.br...@parasane.net || danbr...@php.net 50% Off Hosting! http://www.pilotpig.net/specials.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Poll of Sorts: Application Frameworks--Zend, Cake etc
-Original Message- From: Eric Butera [mailto:eric.but...@gmail.com] Sent: Thursday, December 11, 2008 9:25 AM To: Bastien Koert Cc: Terion Miller; PHP General Subject: Re: [PHP] Poll of Sorts: Application Frameworks--Zend, Cake etc On Thu, Dec 11, 2008 at 10:22 AM, Bastien Koert phps...@gmail.com wrote: On Thu, Dec 11, 2008 at 10:15 AM, Eric Butera eric.but...@gmail.com wrote: On Thu, Dec 11, 2008 at 9:56 AM, Terion Miller wrote: Hey Everyone, I am wondering if using a framework such as one of these may make my life easier, which do any of you use and what has been your experience with the learning curve of them? I just put Cake on my local server, basically I want to know which is easiest? LOL... Define easiest. What is it that you need to code? If you mean cookie cutter sites that have been done a million times with minimal flexibility... :) I'm in the same boat as you though. I don't know which one meets the needs I have the best. There's stuff like cake which is really easy to start up, then there's stuff like symphony that will let you do anything, but you really have to work at it. There are definite learning curves when picking these up. symfony and ZF have the largest because they either do more (symfony) or are designed to be used piecemeal (ZF) CodeIgnitor is one of the easiest ones to start using with Cake not far One huge part of this that I didn't mention before is the community around the frameworks too. Do they have good docs, examples, stuff like that. Can you ask questions and get quality answers? I see people talk about the same handful of frameworks every time this question comes up. Has anyone used one of the underdog frameworks that are sprouting up at the fringes? PRADO? Yii? Simple PHP Framework? Akelos (Ruby on Rails port)? Seagull? BlueShoes? EvoCore? PHOCOA? Zoop? Stratos? Picora? SOLAR? FLOW3? Maintainable? Adventure-Framework? ...the list goes on. I thought Yii [1] seemed interesting, at the least. 1. http://www.yiiframework.com // Todd
Re: [PHP] Foreign Keys Question
On Thu, Dec 11, 2008 at 2:32 PM, tedd tedd.sperl...@gmail.com wrote: At 1:55 PM -0500 12/11/08, Robert Cummings wrote: Student attendance should be a table with rows for each student in attendance. If you want to limit the number make a check before adding another student. Don't hard code the number via fields like above or you'll find it overly ugly to add/remove students or even increase the number of allowed students. As it stands to allow 6 students you would have to add 2 more columns. With attendance controled by a table with a row for ewach attendance you would only need to update a configuration variable the determines the maximim number of allowed students in attendance. Cheers, Rob. Rob: I see -- the solution is a table for courses, students, instructors and enrollment. The enrollment table will hold links to all (third normal). If I want to limit the number of students in a course, then just count the number of students enrolled in a specific course within the enrollment table and check that number against the maximum allowed before adding another enrollment record. Also, if a student cancels, then it's only a deletion of an enrollment record and all is right with the world. That's good. Sometimes it's good to talk things like this through -- clears the fuzzy thinking. Thanks, tedd That's the way to go. Just keep in mind that you will have to consider ways of preventing overloading your courses due to concurrency, whether you use table locks or devise your own mechanism. I don't know if you are allowing students to self-enroll or not. You just don't want two users to both see that a course has one opening left and both try to take that spot at the same time. Andrew -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] trying to figure out how to create the right query...
Hi. I have the following test db/tbl setup. stateTBL +--+ | stateName| | stateID |+ +--+ V V V collegeTBL V +--+ V | collegeName | V | stateID |+ | collegeID|+ +--+ V V V deptTBLV +--+ V | deptName | V | collegeID|+ | deptID |+ +--+ V V V courseTBL V +--+ V | courseName | V | deptID |+ | courseID |+ +--+ V V V facultyTBL V +--+ V | facultyName | V | courseID |+ | ID | +--+ my intended app will allow the user to select a given item (college, dept, course, faculty) and to store this data. when a user is displaying a list of items, i'd like to have my app determine if the child of the item has been selected by the user. so. if a user has selected stanford, i'd like to be able to have a query that returns 'true' for any item, that has a 'child' (leaf) already selected by the user. (this should work for any level of childTBL) so if a user has selected a course, from the stanford, physics dept, physics 101, i'd like to have a query that returns 'true' if the user selects 'stanford' from the list of colleges... i can't quite seem to figure out the sql to make it happen... thoughts/comments/etc.. i'm hoping that this makes sense!! thanks -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Foreign Keys Question
At 3:14 PM -0500 12/11/08, Andrew Ballard wrote: That's the way to go. Just keep in mind that you will have to consider ways of preventing overloading your courses due to concurrency, whether you use table locks or devise your own mechanism. I don't know if you are allowing students to self-enroll or not. You just don't want two users to both see that a course has one opening left and both try to take that spot at the same time. Andrew It's very low volume at the moment, so I don't think there will be an immediate problem. However, I will investigate locking the tables for entry. But I don't think using transactions will be necessary. Thanks again for all the help Andrew el al. Cheers, tedd -- --- http://sperling.com http://ancientstones.com http://earthstones.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Foreign Keys Question
On Thu, 2008-12-11 at 16:17 -0500, tedd wrote: At 3:14 PM -0500 12/11/08, Andrew Ballard wrote: That's the way to go. Just keep in mind that you will have to consider ways of preventing overloading your courses due to concurrency, whether you use table locks or devise your own mechanism. I don't know if you are allowing students to self-enroll or not. You just don't want two users to both see that a course has one opening left and both try to take that spot at the same time. Andrew It's very low volume at the moment, so I don't think there will be an immediate problem. However, I will investigate locking the tables for entry. But I don't think using transactions will be necessary. A site doesn't need to be high volume to get a concurrency issue. The timing just needs to be right. So there's less probability in a low traffic site, but all the same, the problem produced as a result is the same. In a low volume site using a lock on the table is a simple method to prevent the problem since you can expect it will have minimal impact on the site in general (due to low volume). You only need the lock when you go to add the row... lock table check enrolment count no room unlock table generate error have room insert row unlock table Ba da boom. Cheers, Rob. -- http://www.interjinn.com Application and Templating Framework for PHP -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Foreign Keys Question
On Thu, 2008-12-11 at 16:24 -0500, Robert Cummings wrote: On Thu, 2008-12-11 at 16:17 -0500, tedd wrote: At 3:14 PM -0500 12/11/08, Andrew Ballard wrote: That's the way to go. Just keep in mind that you will have to consider ways of preventing overloading your courses due to concurrency, whether you use table locks or devise your own mechanism. I don't know if you are allowing students to self-enroll or not. You just don't want two users to both see that a course has one opening left and both try to take that spot at the same time. Andrew It's very low volume at the moment, so I don't think there will be an immediate problem. However, I will investigate locking the tables for entry. But I don't think using transactions will be necessary. A site doesn't need to be high volume to get a concurrency issue. The timing just needs to be right. So there's less probability in a low traffic site, but all the same, the problem produced as a result is the same. In a low volume site using a lock on the table is a simple method to prevent the problem since you can expect it will have minimal impact on the site in general (due to low volume). You only need the lock when you go to add the row... lock table check enrolment count no room unlock table generate error have room insert row unlock table Ba da boom. I should have read your message better... you were talking about skipping transactions and not locking :) Cheers, Rob. -- http://www.interjinn.com Application and Templating Framework for PHP -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] how to not show login info in the url ...what am I looking for?
On Fri, Dec 12, 2008 at 7:03 AM, tedd tedd.sperl...@gmail.com wrote: At 11:23 AM -0500 12/11/08, Robert Cummings wrote: On Thu, 2008-12-11 at 11:05 -0500, tedd wrote: When I say Hack a site I mean to do something to get the site to provide an unintended result as expected by the author. Much like using CSS Hacks to get browsers to do something that was not intended by the original designers. On the other hand, my understanding of cracking means to crack some type of encryption. Thus, the reason why I did not say cracking the site instead of hacking the site. Cracking is not just about encryption. It's about bypassing any kind of measure put in place to prevent someone from doing something. Hacking on the other hand does not embody this principle, although hacking may be employed to achieve cracking. Just because pop culture is completely ignorant to the difference, doesn't mean you as a member of the community need to jump on board and bleat like a sheep. If you intend to misuse hacker, then you should at least provide more detail such as white-, grey-, or black-hat. Cheers, Rob. Okay, I shall adjust my fracking terminology. :-) Cheers, tedd Cracking to me is when someone uses an already existing hack to use it for their own gain in a malicious way to someone else. Hacking is finding new security holes or problems with some software to fix the security holes, or just for fun without causing any demage or revealing sensitive information. A hacker to me, is an admirable person, who can find new security issues. A cracker to me, is someone exploiting hacks already in existence.
[PHP] Re: Foreign Keys Question
'Twas brillig, and tedd at 11/12/08 18:46 did gyre and gimble: As for my Foreign Keys Question, I think the answer is that it enforces rules upon the configuration (i.e., deleting, altering, and such), but does not provide any significant service beyond that. Well that's a fairly significant service in itself. The whole deleting data case is where FK's have saved me significant amount of coding. The ON DELETE CASCADE option is key here... DELETE FROM students where student_id=1 will remove all traces of that student from the db... all the course they've attended, all the instructors who have taught them etc. keeps things nice and tidy without having to put the structure in your code all over the place. Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mandriva Linux Contributor [http://www.mandriva.com/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: Poll of Sorts: Application Frameworks--Zend, Cake etc
'Twas brillig, and Terion Miller at 11/12/08 14:56 did gyre and gimble: Hey Everyone, I am wondering if using a framework such as one of these may make my life easier, which do any of you use and what has been your experience with the learning curve of them? I just put Cake on my local server, basically I want to know which is easiest? LOL... Personally I'm a ZF fan, but each to their own. Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mandriva Linux Contributor [http://www.mandriva.com/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] how to not show login info in the url ...what am I looking for?
On Fri, 2008-12-12 at 10:59 +1300, German Geek wrote: On Fri, Dec 12, 2008 at 7:03 AM, tedd tedd.sperl...@gmail.com wrote: At 11:23 AM -0500 12/11/08, Robert Cummings wrote: On Thu, 2008-12-11 at 11:05 -0500, tedd wrote: When I say Hack a site I mean to do something to get the site to provide an unintended result as expected by the author. Much like using CSS Hacks to get browsers to do something that was not intended by the original designers. On the other hand, my understanding of cracking means to crack some type of encryption. Thus, the reason why I did not say cracking the site instead of hacking the site. Cracking is not just about encryption. It's about bypassing any kind of measure put in place to prevent someone from doing something. Hacking on the other hand does not embody this principle, although hacking may be employed to achieve cracking. Just because pop culture is completely ignorant to the difference, doesn't mean you as a member of the community need to jump on board and bleat like a sheep. If you intend to misuse hacker, then you should at least provide more detail such as white-, grey-, or black-hat. Cheers, Rob. Okay, I shall adjust my fracking terminology. :-) Cheers, tedd Cracking to me is when someone uses an already existing hack to use it for their own gain in a malicious way to someone else. Hacking is finding new security holes or problems with some software to fix the security holes, or just for fun without causing any demage or revealing sensitive information. A hacker to me, is an admirable person, who can find new security issues. A cracker to me, is someone exploiting hacks already in existence. I tend to agree with these definitions: http://searchsecurity.techtarget.com/sDefinition/0,,sid14_gci212220,00.html The hacker is generally considered to be someone knowledgeable about a specific aspect of computers and uses that. This can obviously be used for good or ill. Cracker is generally a non-hacker (IMHO) that uses the works of hackers to break into things. The general media has this a bit messed up, and a hacker to them is typically someone who breaks into systems with malicious intent. Of course, the other meanings: hacker: someone who chops down trees cracker: something you pull at xmas (can be of the female persuasion ;) ) Ash www.ashleysheridan.co.uk -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Need a brain to bounce some Mysql/DB thoughts off of!!
Hi guys. Architecting an app that's going to have users interacting with different levels of the db/tbls, and trying to figure out a few things. The highlevel layout looks like: collegeTBL deptTBL with -collegeTBL.id = deptTBL.colID I also have a status tbl for each collegeTBL/deptTBL college_statusTBL userID collegeID dept_statusTBL userID deptID with: collegeTBL.id=college_statusTBL.collegeID deptTBL.id=dept_statusTBL.deptID So I limk the statusTBLs to the college/dept TBLs... This is due to the fact that a user can elect to work on either a college, or a given dept of the college. I'm struggling with a good/best way to figure out how to develop a query to determine what level of a college, (if any) a user has elected to work with. I can do a multiple join across the collegeTBL/deptTBL, and the statusTBLs, but this simply gets a large tbl, and I'd have to then parse the results... I'm trying to figure out if there's a better way, with a single query. The query would look at the college(status), and then at the dept(status) to determine what level (if any ) the user has selected. I've got a mysql layout of the various tbls, and inserts if anyone's interested in helping me shake my mind out on this... thanks -bruce -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Need a brain to bounce some Mysql/DB thoughts off of!!
This list seems to be turning into a MySQL list with a few PHP questions... Tim-Hinnerk Heuer http://www.ihostnz.com On Fri, Dec 12, 2008 at 1:53 PM, bruce bedoug...@earthlink.net wrote: Hi guys. Architecting an app that's going to have users interacting with different levels of the db/tbls, and trying to figure out a few things. The highlevel layout looks like: collegeTBL deptTBL with -collegeTBL.id = deptTBL.colID I also have a status tbl for each collegeTBL/deptTBL college_statusTBL userID collegeID dept_statusTBL userID deptID with: collegeTBL.id=college_statusTBL.collegeID deptTBL.id=dept_statusTBL.deptID So I limk the statusTBLs to the college/dept TBLs... This is due to the fact that a user can elect to work on either a college, or a given dept of the college. I'm struggling with a good/best way to figure out how to develop a query to determine what level of a college, (if any) a user has elected to work with. I can do a multiple join across the collegeTBL/deptTBL, and the statusTBLs, but this simply gets a large tbl, and I'd have to then parse the results... I'm trying to figure out if there's a better way, with a single query. The query would look at the college(status), and then at the dept(status) to determine what level (if any ) the user has selected. I've got a mysql layout of the various tbls, and inserts if anyone's interested in helping me shake my mind out on this... thanks -bruce -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: Foreign Keys Question
Colin Guthrie wrote: The ON DELETE CASCADE option is key here... DELETE FROM students where student_id=1 will remove all traces of that student from the db... all the course they've attended, all the instructors who have taught them etc. keeps things nice and tidy without having to put the structure in your code all over the place. Col Why would you want to delete the instructors when deleting the student? Thank you, Micah Gersten onShore Networks Internal Developer http://www.onshore.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: Foreign Keys Question
Micah Gersten wrote: Colin Guthrie wrote: The ON DELETE CASCADE option is key here... DELETE FROM students where student_id=1 will remove all traces of that student from the db... all the course they've attended, all the instructors who have taught them etc. keeps things nice and tidy without having to put the structure in your code all over the place. Col Why would you want to delete the instructors when deleting the student? I think he meant the link between the student instructor (in the student_instructor table), not the instructor itself. -- Postgresql php tutorials http://www.designmagick.com/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: Foreign Keys Question
'Twas brillig, and Chris at 12/12/08 01:20 did gyre and gimble: Micah Gersten wrote: Colin Guthrie wrote: The ON DELETE CASCADE option is key here... DELETE FROM students where student_id=1 will remove all traces of that student from the db... all the course they've attended, all the instructors who have taught them etc. keeps things nice and tidy without having to put the structure in your code all over the place. Col Why would you want to delete the instructors when deleting the student? I think he meant the link between the student instructor (in the student_instructor table), not the instructor itself. lol, indeed, that's what I meant... Sorry I thought it was implied in the context! Say you have the following layouts instructors: instructor_id, name students: student_id, name instructor_students: instructor_id, student_id This structure would hold a list of instructors and a list of studends and also a one to many mapping of instructors to students. If you delete a student the FK can cascade to the instructor_students table and thus delete the records that indicate a given instructor (or instructors) taught them. Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mandriva Linux Contributor [http://www.mandriva.com/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Can GD make a JPG thumbnail of a PDF?
It looks like there is something wrong with your newsreader because your replies are not being connected to what you are replying to. Have you noticed? Much harder for everyone. What newsreader are you using? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Need a brain to bounce some Mysql/DB thoughts off of!!
It's Christmas... the season of giving and tolerance :| On Fri, 2008-12-12 at 13:56 +1300, German Geek wrote: This list seems to be turning into a MySQL list with a few PHP questions... Tim-Hinnerk Heuer http://www.ihostnz.com On Fri, Dec 12, 2008 at 1:53 PM, bruce bedoug...@earthlink.net wrote: Hi guys. Architecting an app that's going to have users interacting with different levels of the db/tbls, and trying to figure out a few things. The highlevel layout looks like: collegeTBL deptTBL with -collegeTBL.id = deptTBL.colID I also have a status tbl for each collegeTBL/deptTBL college_statusTBL userID collegeID dept_statusTBL userID deptID with: collegeTBL.id=college_statusTBL.collegeID deptTBL.id=dept_statusTBL.deptID So I limk the statusTBLs to the college/dept TBLs... This is due to the fact that a user can elect to work on either a college, or a given dept of the college. I'm struggling with a good/best way to figure out how to develop a query to determine what level of a college, (if any) a user has elected to work with. I can do a multiple join across the collegeTBL/deptTBL, and the statusTBLs, but this simply gets a large tbl, and I'd have to then parse the results... I'm trying to figure out if there's a better way, with a single query. The query would look at the college(status), and then at the dept(status) to determine what level (if any ) the user has selected. I've got a mysql layout of the various tbls, and inserts if anyone's interested in helping me shake my mind out on this... thanks -bruce -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- http://www.interjinn.com Application and Templating Framework for PHP -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Foreign Keys Question
As a side note, FKs do enforce other table specific properties like indexes on the fields being constrained, so they do add value there as well. But there's of course an extra cost on updates and inserts to see if the FK is violated. Waynn On 12/11/08, Colin Guthrie gm...@colin.guthr.ie wrote: 'Twas brillig, and Chris at 12/12/08 01:20 did gyre and gimble: Micah Gersten wrote: Colin Guthrie wrote: The ON DELETE CASCADE option is key here... DELETE FROM students where student_id=1 will remove all traces of that student from the db... all the course they've attended, all the instructors who have taught them etc. keeps things nice and tidy without having to put the structure in your code all over the place. Col Why would you want to delete the instructors when deleting the student? I think he meant the link between the student instructor (in the student_instructor table), not the instructor itself. lol, indeed, that's what I meant... Sorry I thought it was implied in the context! Say you have the following layouts instructors: instructor_id, name students: student_id, name instructor_students: instructor_id, student_id This structure would hold a list of instructors and a list of studends and also a one to many mapping of instructors to students. If you delete a student the FK can cascade to the instructor_students table and thus delete the records that indicate a given instructor (or instructors) taught them. Col -- Colin Guthrie gmane(at)colin.guthr.ie http://colin.guthr.ie/ Day Job: Tribalogic Limited [http://www.tribalogic.net/] Open Source: Mandriva Linux Contributor [http://www.mandriva.com/] PulseAudio Hacker [http://www.pulseaudio.org/] Trac Hacker [http://trac.edgewall.org/] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Foreign Keys Question
Waynn Lue wrote: As a side note, FKs do enforce other table specific properties like indexes on the fields being constrained, so they do add value there as well. But there's of course an extra cost on updates and inserts to see if the FK is violated. On the external table? No they don't. mysql create table t1(id int primary key, name varchar(255)) engine=innodb; Query OK, 0 rows affected (0.00 sec) mysql create table t2(t2id int, t1id int references t1(id)) engine=innodb; Query OK, 0 rows affected (0.00 sec) mysql show create table t2\G *** 1. row *** Table: t2 Create Table: CREATE TABLE `t2` ( `t2id` int(11) default NULL, `t1id` int(11) default NULL ) ENGINE=InnoDB DEFAULT CHARSET=latin1 1 row in set (0.00 sec) No auto-index on t2(t1id) at all. You have to define that yourself - you might want it part of a multi-column index for example. You definitely should index it, but it won't happen automatically. -- Postgresql php tutorials http://www.designmagick.com/ -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Need a brain to bounce some Mysql/DB thoughts off of!!
OK, i give u that, Rob. :-) I might just ask MySQL questions here, if i have some. I guess, if people get more responses here, it shows that this mailing list is superior (no offence to the MySQL list :-P ). Tim On Fri, Dec 12, 2008 at 4:04 PM, Robert Cummings rob...@interjinn.comwrote: It's Christmas... the season of giving and tolerance :| On Fri, 2008-12-12 at 13:56 +1300, German Geek wrote: This list seems to be turning into a MySQL list with a few PHP questions... Tim-Hinnerk Heuer http://www.ihostnz.com On Fri, Dec 12, 2008 at 1:53 PM, bruce bedoug...@earthlink.net wrote: Hi guys. Architecting an app that's going to have users interacting with different levels of the db/tbls, and trying to figure out a few things. The highlevel layout looks like: collegeTBL deptTBL with -collegeTBL.id = deptTBL.colID I also have a status tbl for each collegeTBL/deptTBL college_statusTBL userID collegeID dept_statusTBL userID deptID with: collegeTBL.id=college_statusTBL.collegeID deptTBL.id=dept_statusTBL.deptID So I limk the statusTBLs to the college/dept TBLs... This is due to the fact that a user can elect to work on either a college, or a given dept of the college. I'm struggling with a good/best way to figure out how to develop a query to determine what level of a college, (if any) a user has elected to work with. I can do a multiple join across the collegeTBL/deptTBL, and the statusTBLs, but this simply gets a large tbl, and I'd have to then parse the results... I'm trying to figure out if there's a better way, with a single query. The query would look at the college(status), and then at the dept(status) to determine what level (if any ) the user has selected. I've got a mysql layout of the various tbls, and inserts if anyone's interested in helping me shake my mind out on this... thanks -bruce -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- http://www.interjinn.com Application and Templating Framework for PHP
[PHP] How serialize DOMDocument object?
How serialize DOMDocument object?
Re: [PHP] Re: Foreign Keys Question
Colin Guthrie wrote: 'Twas brillig, and tedd at 11/12/08 18:46 did gyre and gimble: As for my Foreign Keys Question, I think the answer is that it enforces rules upon the configuration (i.e., deleting, altering, and such), but does not provide any significant service beyond that. Well that's a fairly significant service in itself. The whole deleting data case is where FK's have saved me significant amount of coding. The ON DELETE CASCADE option is key here... DELETE FROM students where student_id=1 will remove all traces of that student from the db... all the course they've attended, all the instructors who have taught them etc. keeps things nice and tidy without having to put the structure in your code all over the place. Col Is it just me or does anyone else here not like deleting from a database, I normally have a status field to indicated if a row has been deleted. What about historical data, would you not want to know that studentX was enrolled at some point in the past, if you just delete that student and all related data how would you know this? You could also have a 2nd database with the same table structure and move old/delete data into there. Clive -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: Foreign Keys Question
On Fri, 2008-12-12 at 09:06 +0200, clive wrote: Colin Guthrie wrote: 'Twas brillig, and tedd at 11/12/08 18:46 did gyre and gimble: As for my Foreign Keys Question, I think the answer is that it enforces rules upon the configuration (i.e., deleting, altering, and such), but does not provide any significant service beyond that. Well that's a fairly significant service in itself. The whole deleting data case is where FK's have saved me significant amount of coding. The ON DELETE CASCADE option is key here... DELETE FROM students where student_id=1 will remove all traces of that student from the db... all the course they've attended, all the instructors who have taught them etc. keeps things nice and tidy without having to put the structure in your code all over the place. Col Is it just me or does anyone else here not like deleting from a database, I normally have a status field to indicated if a row has been deleted. What about historical data, would you not want to know that studentX was enrolled at some point in the past, if you just delete that student and all related data how would you know this? You could also have a 2nd database with the same table structure and move old/delete data into there. It depends on the data. Certainly for student enrolments I would want a paper trail (so to speak) and would just set a status field. But if it was say, an online shopping cart or cached data... I'd just purge it. Cheers, Rob. -- http://www.interjinn.com Application and Templating Framework for PHP -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Re: Foreign Keys Question
Robert Cummings wrote: It depends on the data. Certainly for student enrolments I would want a paper trail (so to speak) and would just set a status field. But if it was say, an online shopping cart or cached data... I'd just purge it. Cheers, Rob. yes - you are right, I was just thinking about the student enrolment scenario :-) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
