php-general Digest 20 Apr 2008 03:17:00 -0000 Issue 5414
php-general Digest 20 Apr 2008 03:17:00 - Issue 5414 Topics (messages 273300 through 273314): Re: module access rights 273300 by: Ken Kixmoeller.com 273301 by: Ken Kixmoeller Double billing problem 273302 by: tedd 273303 by: Dan Joseph 273304 by: Daniel Brown newbie needs help with session variables 273305 by: Rod Clay 273307 by: revDAVE 273313 by: Warren Vail Alter Table newbie help needed ... 273306 by: revDAVE 273308 by: Jason Norwood-Young 273310 by: revDAVE Re: putting variables in a variable 273309 by: revDAVE Re: PHP console script vs C/C++/C# 273311 by: Larry Garfield 273314 by: Nathan Nobbe Re: OS X 10.5.2 273312 by: Lee Perry Administrivia: To subscribe to the digest, e-mail: [EMAIL PROTECTED] To unsubscribe from the digest, e-mail: [EMAIL PROTECTED] To post to the list, e-mail: [EMAIL PROTECTED] -- ---BeginMessage--- On Apr 19, 2008, at 2:37 AM, Alain Roger wrote: Hi, i'm very surprised... i did not get any answer to my previous post. is it because it is good way to do it or because nobody knows ? --- Hi, i face now a little issue regarding how end user can access to some modules of my web portal. Let imagine we have several modules (let say: mod1, mod 2, mod3) and 2 users (usr1, usr2). i would like to use a simple way how to established access rights for each user to grant/forbidden access to modules... Or maybe the answer is as complicated as the question seems simple. I have my master application object. On __construct, it checks the current user's rights from somewhere (a config file or a database, for example), and instantiates the application based on the rights profile. Simple answer, but a lot of front-end work to implement. Ken ---End Message--- ---BeginMessage--- Right. Thanks for the links. This type of approach is the basis of my software architecture. Ken (BTW, don't forget to Reply All so your reply goes to the list, too). On Apr 19, 2008, at 9:03 AM, Tony Marston wrote: What you are describing is a Role Based Access Control (RBAC) system, and it is not simple. Take a look at http://www.tonymarston.net/php-mysql/role-based-access-control.html and http://www.tonymarston.net/php-mysql/menuguide/index.html Tony Marston http://www.tonymarston.net http://www.radicore.org -Original Message- From: Ken Kixmoeller.com [mailto:[EMAIL PROTECTED] Sent: 19 April 2008 14:33 To: PHP General List Subject: Re: [PHP] module access rights On Apr 19, 2008, at 2:37 AM, Alain Roger wrote: Hi, i'm very surprised... i did not get any answer to my previous post. is it because it is good way to do it or because nobody knows ? --- Hi, i face now a little issue regarding how end user can access to some modules of my web portal. Let imagine we have several modules (let say: mod1, mod 2, mod3) and 2 users (usr1, usr2). i would like to use a simple way how to established access rights for each user to grant/forbidden access to modules... Or maybe the answer is as complicated as the question seems simple. I have my master application object. On __construct, it checks the current user's rights from somewhere (a config file or a database, for example), and instantiates the application based on the rights profile. Simple answer, but a lot of front-end work to implement. Ken -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php ---End Message--- ---BeginMessage--- Hi gang: I have a problem. I set up a PayPal billing for a client. It's pretty simple, the process sends the credit card information with payment required to PayPal and then PayPal clears the transaction and sends back a authorization. Everything works. To stop the possibility of double billing, I did the following: 1. I check the database to see if the user has purchased the item before. If so, then I don't allow them to purchase again. 2. I placed a javascript routine to disable the Submit button for purchase after clicking once. That way, the user can only click it once. 3. The Submit button when clicked once will send the data gathered to another page (Submit the data to PayPal) that actually submits the data to PayPal. In that page I have a token that is assigned a value upon loading. If the user refreshes the page, then the non-zero token causes the page to destroy the sessions and redirect the user to another page requiring the user to enter the data again. 4. Inside the above Submit the data to PayPal I have another token that is assigned a value once the send the data to PayPal routine is triggered. Once the token is non-zero, the routine won't send anything to PayPal again. However, even with all of this,
[PHP] module access rights
Hi, i'm very surprised... i did not get any answer to my previous post. is it because it is good way to do it or because nobody knows ? thx. Al. --- Hi, i face now a little issue regarding how end user can access to some modules of my web portal. Let imagine we have several modules (let say: mod1, mod 2, mod3) and 2 users (usr1, usr2). i would like to use a simple way how to established access rights for each user to grant/forbidden access to modules. i was thinking that a simple code like on linux could fit this need where i could have execute/change/read access and this for each module. for example, usr1 could have stored into DB the access rights 710 (knowing that rights are based on mod3 | mod2 | mod1) so usr1 : - could execute some particular actions, change data and read data from module 3 - could just read data for module 2 - does not have access to module 1 something similar for usr2 could be setup. on each php pages/module, the user rights are checked and based on result, the correct decision is taken by the web portal system. i would like to know if such technique is a correct one, or if there is something much more better ? thanks a lot, -- Alain Windows XP SP2 PostgreSQL 8.2.4 / MS SQL server 2005 Apache 2.2.4 PHP 5.2.4 C# 2005-2008 -- Alain Windows XP SP2 PostgreSQL 8.2.4 / MS SQL server 2005 Apache 2.2.4 PHP 5.2.4 C# 2005-2008
Re: [PHP] PHP console script vs C/C++/C#
Nathan Nobbe wrote: On Fri, Apr 18, 2008 at 11:25 AM, Nick Stinemates [EMAIL PROTECTED] wrote: I don't think there was a single place where I said PHP was faster than C, nor did I imply it. Depends. Shitty algorithms are shitty, regardless of language implementation. implies that the same algorithm in different languages will not perform differently. thats innacurate. No, that is actually a very accurate statement. An algorithm will perform equally well regardless of the language chosen. How well the actual implementation performs overall is a separate issue. The performance or rather efficiency of an algorithm is usually expressed in the big-O notation, e.g. O(n), O(log(n)) etc. A linear search is O(n), a quick sort is O(nlog(n)) (on average) - both perform equally bad or equally well regardless of which language you choose to implement them in. the same algorithm w/o external dependencies, such as db calls, or calls to remote systems will run faster in java / c / c++ and others than it will in php. An algorithm doesn't have external dependencies - but implementations might. /Per Jessen, Zürich -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHP console script vs C/C++/C#
On Sat, 2008-04-19 at 13:08 +0200, Per Jessen wrote: Nathan Nobbe wrote: On Fri, Apr 18, 2008 at 11:25 AM, Nick Stinemates [EMAIL PROTECTED] wrote: I don't think there was a single place where I said PHP was faster than C, nor did I imply it. Depends. Shitty algorithms are shitty, regardless of language implementation. implies that the same algorithm in different languages will not perform differently. thats innacurate. No, that is actually a very accurate statement. An algorithm will perform equally well regardless of the language chosen. How well the actual implementation performs overall is a separate issue. The performance or rather efficiency of an algorithm is usually expressed in the big-O notation, e.g. O(n), O(log(n)) etc. A linear search is O(n), a quick sort is O(nlog(n)) (on average) - both perform equally bad or equally well regardless of which language you choose to implement them in. the same algorithm w/o external dependencies, such as db calls, or calls to remote systems will run faster in java / c / c++ and others than it will in php. An algorithm doesn't have external dependencies - but implementations might. You are correct about asymptotic bounds on algorithms; however, languages can still have a constant multiplier affect on an algorithm. Consider a rendering algorithm in language L.x that when given an input I.c takes 5 days to complete... now take language L.y tha happens to incurr a constant multiplier penalty of 4. Now giving the input I.c to L.y we find that it takes 20 days to complete. Same algorithm, same asymptotic bound, but a significant difference in competitiveness. Asymptotic bounds (Big Oh) are useful, but their applicability isn't always universal. Some algorithms that are asymptotically inferior actually perform better on small input sets than their asymptotic superiors... I don't recall for certain, but bubblesort might be one such example. 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] PHP console script vs C/C++/C#
Robert Cummings wrote: You are correct about asymptotic bounds on algorithms; however, languages can still have a constant multiplier affect on an algorithm. Absolutely. When it comes to how long does it take to process 1000 elements, both language and hardware are critical factors. But the algorithm efficiency remains constant. Asymptotic bounds (Big Oh) are useful, but their applicability isn't always universal. Some algorithms that are asymptotically inferior actually perform better on small input sets than their asymptotic superiors... I don't recall for certain, but bubblesort might be one such example. Also true. Quick sort is such an example - in general it does really well, but for certain data sets, it doesn't. /Per Jessen, Zürich -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] module access rights
On Apr 19, 2008, at 2:37 AM, Alain Roger wrote: Hi, i'm very surprised... i did not get any answer to my previous post. is it because it is good way to do it or because nobody knows ? --- Hi, i face now a little issue regarding how end user can access to some modules of my web portal. Let imagine we have several modules (let say: mod1, mod 2, mod3) and 2 users (usr1, usr2). i would like to use a simple way how to established access rights for each user to grant/forbidden access to modules... Or maybe the answer is as complicated as the question seems simple. I have my master application object. On __construct, it checks the current user's rights from somewhere (a config file or a database, for example), and instantiates the application based on the rights profile. Simple answer, but a lot of front-end work to implement. Ken -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] module access rights
Right. Thanks for the links. This type of approach is the basis of my software architecture. Ken (BTW, don't forget to Reply All so your reply goes to the list, too). On Apr 19, 2008, at 9:03 AM, Tony Marston wrote: What you are describing is a Role Based Access Control (RBAC) system, and it is not simple. Take a look at http://www.tonymarston.net/php-mysql/role-based-access-control.html and http://www.tonymarston.net/php-mysql/menuguide/index.html Tony Marston http://www.tonymarston.net http://www.radicore.org -Original Message- From: Ken Kixmoeller.com [mailto:[EMAIL PROTECTED] Sent: 19 April 2008 14:33 To: PHP General List Subject: Re: [PHP] module access rights On Apr 19, 2008, at 2:37 AM, Alain Roger wrote: Hi, i'm very surprised... i did not get any answer to my previous post. is it because it is good way to do it or because nobody knows ? --- Hi, i face now a little issue regarding how end user can access to some modules of my web portal. Let imagine we have several modules (let say: mod1, mod 2, mod3) and 2 users (usr1, usr2). i would like to use a simple way how to established access rights for each user to grant/forbidden access to modules... Or maybe the answer is as complicated as the question seems simple. I have my master application object. On __construct, it checks the current user's rights from somewhere (a config file or a database, for example), and instantiates the application based on the rights profile. Simple answer, but a lot of front-end work to implement. Ken -- 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
[PHP] Double billing problem
Hi gang: I have a problem. I set up a PayPal billing for a client. It's pretty simple, the process sends the credit card information with payment required to PayPal and then PayPal clears the transaction and sends back a authorization. Everything works. To stop the possibility of double billing, I did the following: 1. I check the database to see if the user has purchased the item before. If so, then I don't allow them to purchase again. 2. I placed a javascript routine to disable the Submit button for purchase after clicking once. That way, the user can only click it once. 3. The Submit button when clicked once will send the data gathered to another page (Submit the data to PayPal) that actually submits the data to PayPal. In that page I have a token that is assigned a value upon loading. If the user refreshes the page, then the non-zero token causes the page to destroy the sessions and redirect the user to another page requiring the user to enter the data again. 4. Inside the above Submit the data to PayPal I have another token that is assigned a value once the send the data to PayPal routine is triggered. Once the token is non-zero, the routine won't send anything to PayPal again. However, even with all of this, occasionally a user will be charged twice for the same purchase. Each charge is time-stamped and recorded in our database -- the times between duplicate purchases vary from from 3 to 23 seconds. Now, my question is why? Is this a race issue or something similar? And more importantly, what can I do about it? Cheers, tedd PS: I have directed the question to PayPal as well. -- --- 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] Double billing problem
On Sat, Apr 19, 2008 at 3:01 PM, tedd [EMAIL PROTECTED] wrote: Hi gang: I have a problem. I set up a PayPal billing for a client. It's pretty simple, the process sends the credit card information with payment required to PayPal and then PayPal clears the transaction and sends back a authorization. Everything works. To stop the possibility of double billing, I did the following: 1. I check the database to see if the user has purchased the item before. If so, then I don't allow them to purchase again. 2. I placed a javascript routine to disable the Submit button for purchase after clicking once. That way, the user can only click it once. 3. The Submit button when clicked once will send the data gathered to another page (Submit the data to PayPal) that actually submits the data to PayPal. In that page I have a token that is assigned a value upon loading. If the user refreshes the page, then the non-zero token causes the page to destroy the sessions and redirect the user to another page requiring the user to enter the data again. 4. Inside the above Submit the data to PayPal I have another token that is assigned a value once the send the data to PayPal routine is triggered. Once the token is non-zero, the routine won't send anything to PayPal again. However, even with all of this, occasionally a user will be charged twice for the same purchase. Each charge is time-stamped and recorded in our database -- the times between duplicate purchases vary from from 3 to 23 seconds. Now, my question is why? Is this a race issue or something similar? And more importantly, what can I do about it? Cheers, tedd PS: I have directed the question to PayPal as well. -- --- 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 Does paypal offer duplicate transaction protection? The merchant providers I've worked with in the past has had it as part of their fraud protection modules. For instance, you can set it how soon after that card can be charged again. 1 min, 5 mins, etc. I found it a good final failsafe. -- -Dan Joseph 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] Double billing problem
On Sat, Apr 19, 2008 at 3:01 PM, tedd [EMAIL PROTECTED] wrote: Hi gang: I have a problem. I set up a PayPal billing for a client. It's pretty simple, the process sends the credit card information with payment required to PayPal and then PayPal clears the transaction and sends back a authorization. Everything works. [snip!] PS: I have directed the question to PayPal as well. When snipping the message like above, it sounds like you're surprised it works and are suspicious much like when things work out right with a Microsoft product. As a resource, have you tried checking http://www.paypaldev.org/ ? -- /Daniel P. Brown Dedicated Servers - Intel 2.4GHz w/2TB bandwidth/mo. starting at just $59.99/mo. with no contract! Dedicated servers, VPS, and hosting from $2.50/mo. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] newbie needs help with session variables
Hi. I'm still very new to php and still trying to learn the ropes. I'm working on some code now trying to set up a session and use session variables in different scripts, but I'm getting this message: *Warning*: Unknown: Your script possibly relies on a session side-effect which existed until PHP 4.2.3. Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled. You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively. in *Unknown* on line *0 *2 questions: 1) I've turned on register_globals in all of my php.ini files and restarted the webserver, but I'm still getting this message. Can anyone help me with this? 2) I get the idea that one should NOT turn on register_globals, but, if I don't do this, how do I share session variables between scripts (and avoid this message)? Thanks for any help that anyone can provide. Rod Clay [EMAIL PROTECTED] *
[PHP] Alter Table newbie help needed ...
Newbie - MAC - MAMP on port 8889 I have this connection to Mysql database called 'test' Other Php stuff works ok but now I'm trying to alter the table (never did that before...) Connection called 'try1'... ?php # FileName=Connection_php_mysql.htm # Type=MYSQL # HTTP=true $hostname_try1 = 127.0.0.1:8889; $database_try1 = test; $username_try1 = test; $password_try1 = test; $try1 = mysql_pconnect($hostname_try1, $username_try1, $password_try1) or trigger_error(mysql_error(),E_USER_ERROR); ? The lines below don't error but also don't do anything I must be missing something here Right? Maybe it doesn't know to use try1 connection? How do I add that? ?php $sql = 'ALTER TABLE `ztest` ADD `myfield2` VARCHAR(10) NOT NULL;'; ---or--- $sql = 'ALTER TABLE `ztest` RENAME TO `ztest2`;'; ? -- Thanks - RevDave Cool @ hosting4days . com [db-lists] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] newbie needs help with session variables
On 4/19/2008 2:20 PM, Rod Clay [EMAIL PROTECTED] wrote: Hi. I'm still very new to php and still trying to learn the ropes. ...Blind leading the blind (I'm a newbie also but...) Did you try...? session_id()) session_start(); - - - - - From: PHP: session_id - Manual Location: http://us2.php.net/manual/en/function.session-id.php - - - - - session_id() is used to get or set the session id for the current session. The constant SID can also be used to retrieve the current name and session id as a string suitable for adding to URLs. See also Session handling. - - - - - From: PHP: session_start - Manual Location: http://us2.php.net/manual/en/function.session-start.php - - - - - Description bool session_start ( void ) session_start() creates a session or resumes the current one based on the current session id that's being passed via a request, such as GET, POST, or a cookie. If you want to use a named session, you must call session_name() before calling session_start(). session_start() will register internal output handler for URL rewriting when trans-sid is enabled. If a user uses ob_gzhandler or like with ob_start(), the order of output handler is important for proper output. For example, user must register ob_gzhandler before session start. I'm working on some code now trying to set up a session and use session variables in different scripts, but I'm getting this message: *Warning*: Unknown: Your script possibly relies on a session side-effect which existed until PHP 4.2.3. Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled. You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively. in *Unknown* on line *0 *2 questions: 1) I've turned on register_globals in all of my php.ini files and restarted the webserver, but I'm still getting this message. Can anyone help me with this? 2) I get the idea that one should NOT turn on register_globals, but, if I don't do this, how do I share session variables between scripts (and avoid this message)? Thanks for any help that anyone can provide. Rod Clay [EMAIL PROTECTED] * -- Thanks - RevDave Cool @ hosting4days . com [db-lists] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Alter Table newbie help needed ...
On Sat, 2008-04-19 at 14:23 -0700, revDAVE wrote: Newbie - MAC - MAMP on port 8889 I have this connection to Mysql database called 'test' Other Php stuff works ok but now I'm trying to alter the table (never did that before...) Connection called 'try1'... ?php # FileName=Connection_php_mysql.htm # Type=MYSQL # HTTP=true $hostname_try1 = 127.0.0.1:8889; $database_try1 = test; $username_try1 = test; $password_try1 = test; $try1 = mysql_pconnect($hostname_try1, $username_try1, $password_try1) or trigger_error(mysql_error(),E_USER_ERROR); ? The lines below don't error but also don't do anything I must be missing something here Right? Maybe it doesn't know to use try1 connection? How do I add that? ?php $sql = 'ALTER TABLE `ztest` ADD `myfield2` VARCHAR(10) NOT NULL;'; ---or--- $sql = 'ALTER TABLE `ztest` RENAME TO `ztest2`;'; ? Might be obvious but you are doing mysql_query($sql);, right? Also add a try catch around your mysql_query to check what's happening. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] putting variables in a variable
On 3/28/2011 4:06 AM, Hulf [EMAIL PROTECTED] wrote:
Hi,
I am making and HTML email. I have 3 images to put in. Currently I have
$body .=
table
tr
tdimg src=\image1.jpg\/td
/tr
tr
td/td
/tr
/table
;
ideally I would like to have
$myimage1 = image1.jpg;
$myimage2 = image2.jpg;
$myimage3 = image3.jpg;
and put them into the HTML body variable. I have tried escaping them in
every way i can think of, dots and slashes and the rest. Any ideas?
I'm just a newbie - but
I did something like this (non - html mail) ... If it helps...
I created this var called $thebody - then stuck it in the mail tag... And it
works
--
$thebody = 'This is a some info...
UserID#: '. $_SESSION['nowuser'].'
Company: '.$_SESSION['now_co'].'
Worker Info: '. $edit_result_row-getField('First').' '.
$edit_result_row-getField('Last').'
Thanks,
';
---
--
Thanks - RevDave
Cool @ hosting4days . com
[db-lists]
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Re: [PHP] Alter Table newbie help needed ...
On 4/19/2008 2:37 PM, Jason Norwood-Young [EMAIL PROTECTED] wrote: Might be obvious but you are doing mysql_query($sql);, right? Not so obvious to THIS newbie - now it works fine! Thanks AGAIN! Also add a try catch around your mysql_query to check what's happening. -- Thanks - RevDave Cool @ hosting4days . com [db-lists] -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHP console script vs C/C++/C#
On Saturday 19 April 2008, Per Jessen wrote: Robert Cummings wrote: You are correct about asymptotic bounds on algorithms; however, languages can still have a constant multiplier affect on an algorithm. Absolutely. When it comes to how long does it take to process 1000 elements, both language and hardware are critical factors. But the algorithm efficiency remains constant. Certain languages are also well-suited to certain types of algorithms, particularly when you're talking about languages with a runtime environment. A recursion-heavy algorithm will perform far better in a functional language than in a procedural language like PHP, because the runtime environment is designed to make sub-routine calls, especially recursive ones, cheap. PHP's sub-routine calls are relatively expensive compared to a functional language. However, it's lookup capabilities on small to medium datasets are strong, thanks to its solid array/hash implementation, so it is well suited to algorithms that require array-able lookups. The abstract algorithm assumes that each primitive operation is equal cost, and then counts the operations. (An over-simplification, but that's the general idea.) In practice, each operation does not have equal cost, and the cost of different primitive operations varies widely between languages and even versions of languages. -- Larry Garfield AIM: LOLG42 [EMAIL PROTECTED] ICQ: 6817012 If nature has made any one thing less susceptible than all others of exclusive property, it is the action of the thinking power called an idea, which an individual may exclusively possess as long as he keeps it to himself; but the moment it is divulged, it forces itself into the possession of every one, and the receiver cannot dispossess himself of it. -- Thomas Jefferson -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Re: OS X 10.5.2
First let me say thank you for your help, I do appreciate you taking the time to read my post. I did come across the entropy.ch forum while searching on google but (and I could be wrong here so sorry in advance) it seems that this would lead to me having multiple versions of php and or apache. Also I don't really want to be reliant on someone else for my stack. I would prefer to get the bundled install working or learn how to build my own. I have been trying to get the pdo_mysql driver from pear and have had some success but still no banana ! I have installed pear and linked to the mysql_config file but I get errors, I will post the output and hope one of you guys can see what I'm missing. And thanks again in advance. lee. ; ) Macintosh:pear lperry65$ sudo /usr/lib/php/pear/bin/pecl install pdo_mysql downloading PDO_MYSQL-1.0.2.tgz ... Starting to download PDO_MYSQL-1.0.2.tgz (14,778 bytes) .done: 14,778 bytes downloading PDO-1.0.3.tgz ... Starting to download PDO-1.0.3.tgz (52,613 bytes) ...done: 52,613 bytes 12 source files, building running: phpize Configuring for: PHP Api Version: 20041225 Zend Module Api No: 20060613 Zend Extension Api No: 220060519 building in /var/tmp/pear-build-root/PDO-1.0.3 running: /usr/lib/php/pear/temp/PDO/configure checking for grep that handles long lines and -e... /usr/bin/grep checking for egrep... /usr/bin/grep -E checking for a sed that does not truncate output... /usr/bin/sed checking for gcc... gcc checking for C compiler default output file name... a.out checking whether the C compiler works... yes checking whether we are cross compiling... no checking for suffix of executables... checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking whether gcc and cc understand -c and -o together... yes checking for system library directory... lib checking if compiler supports -R... no checking if compiler supports -Wl,-rpath,... yes checking build system type... i686-apple-darwin9.2.2 checking host system type... i686-apple-darwin9.2.2 checking target system type... i686-apple-darwin9.2.2 checking for PHP prefix... /usr checking for PHP includes... -I/usr/include/php -I/usr/include/php/ main -I/usr/include/php/TSRM -I/usr/include/php/Zend -I/usr/include/ php/ext -I/usr/include/php/ext/date/lib checking for PHP extension directory... /usr/lib/php/extensions/no- debug-non-zts-20060613 checking for PHP installed headers prefix... /usr/include/php checking for re2c... no configure: WARNING: You will need re2c 0.12.0 or later if you want to regenerate PHP parsers. checking for gawk... no checking for nawk... no checking for awk... awk checking if awk is broken... no checking whether to enable PDO support... yes, shared checking for ld used by gcc... /usr/libexec/gcc/i686-apple- darwin9/4.0.1/ld checking if the linker (/usr/libexec/gcc/i686-apple-darwin9/4.0.1/ld) is GNU ld... no checking for /usr/libexec/gcc/i686-apple-darwin9/4.0.1/ld option to reload object files... -r checking for BSD-compatible nm... /usr/bin/nm -p checking whether ln -s works... yes checking how to recognise dependent libraries... pass_all checking how to run the C preprocessor... gcc -E checking for ANSI C header files... rm: conftest.dSYM: is a directory rm: conftest.dSYM: is a directory yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking dlfcn.h usability... yes checking dlfcn.h presence... yes checking for dlfcn.h... yes checking the maximum length of command line arguments... 196608 checking command to parse /usr/bin/nm -p output from gcc object... rm: conftest.dSYM: is a directory rm: conftest.dSYM: is a directory rm: conftest.dSYM: is a directory rm: conftest.dSYM: is a directory ok checking for objdir... .libs checking for ar... ar checking for ranlib... ranlib checking for strip... strip rm: conftest.dSYM: is a directory rm: conftest.dSYM: is a directory checking if gcc static flag works... rm: conftest.dSYM: is a directory yes checking if gcc supports -fno-rtti -fno-exceptions... rm: conftest.dSYM: is a directory no checking for gcc option to produce PIC... -fno-common checking if gcc PIC flag -fno-common works... rm: conftest.dSYM: is a directory yes checking if gcc supports -c -o file.o... rm: conftest.dSYM: is a directory yes checking whether the gcc linker (/usr/libexec/gcc/i686-apple- darwin9/4.0.1/ld) supports shared libraries... yes checking dynamic linker characteristics... darwin9.2.2 dyld checking how to hardcode library paths into programs... immediate checking whether stripping libraries is possible... yes checking if libtool supports shared
RE: [PHP] newbie needs help with session variables
As I understand it, the register variables operation occurred before execution began on your script. It involved copying data items from your form ($_POST), from the request URL ($_GET) and from your session ($_SESSION) so that you could simply refer to them by name in your programs. The drawback was that someone could simply modify the URL to reference one of your pages adding a variable to the request, and overlay variables in your session, thereby modifying the execution of your programs, and driving a truck thru any security you may have assumed was there. The reason you want to keep register globals off becomes more obvious, and when you look for variables in the $_POST array or the $_GET array or the $_SESSION array, you can be reasonably sure it is coming from where you expected it. This still doesn't protect you from cross-site posting, but certainly enhances your ability to control the source of data coming into your programs. HTH, Warren Vail -Original Message- From: Rod Clay [mailto:[EMAIL PROTECTED] Sent: Saturday, April 19, 2008 2:20 PM To: php-general@lists.php.net Subject: [PHP] newbie needs help with session variables Hi. I'm still very new to php and still trying to learn the ropes. I'm working on some code now trying to set up a session and use session variables in different scripts, but I'm getting this message: *Warning*: Unknown: Your script possibly relies on a session side-effect which existed until PHP 4.2.3. Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled. You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively. in *Unknown* on line *0 *2 questions: 1) I've turned on register_globals in all of my php.ini files and restarted the webserver, but I'm still getting this message. Can anyone help me with this? 2) I get the idea that one should NOT turn on register_globals, but, if I don't do this, how do I share session variables between scripts (and avoid this message)? Thanks for any help that anyone can provide. Rod Clay [EMAIL PROTECTED] * -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] PHP console script vs C/C++/C#
On Sat, Apr 19, 2008 at 7:08 AM, Per Jessen [EMAIL PROTECTED] wrote: Nathan Nobbe wrote: On Fri, Apr 18, 2008 at 11:25 AM, Nick Stinemates [EMAIL PROTECTED] wrote: I don't think there was a single place where I said PHP was faster than C, nor did I imply it. Depends. Shitty algorithms are shitty, regardless of language implementation. implies that the same algorithm in different languages will not perform differently. thats innacurate. No, that is actually a very accurate statement. umm, so whats going on here is the implicit component of the statement that incorporates relative or absolute performance. in terms of relative performance the statement is accurate; in terms of absolute performance, its quite inaccurate. An algorithm will perform equally well regardless of the language chosen. How well the actual implementation performs overall is a separate issue. The performance or rather efficiency of an algorithm is usually expressed in the big-O notation, e.g. O(n), O(log(n)) etc. A linear search is O(n), a quick sort is O(nlog(n)) (on average) - both perform equally bad or equally well regardless of which language you choose to implement them in. right, relative to the performance of said language. the same algorithm w/o external dependencies, such as db calls, or calls to remote systems will run faster in java / c / c++ and others than it will in php. An algorithm doesn't have external dependencies - but implementations might. algorithms can have external dependencies. imagine a soap call in php. imagine the call running on a windows / bsd / linux system. imagine the call running on different networks. imagine the algorithm running on a machine w/ lots of other apps running on it concurrently leaving resources at a minimum and again it running on a powerful system dedicated to the php-enabled web server. although the algorithm will run unaltered on all these platforms the performance may, and likely will vary due to the underlying network stack, OS, bandwidth of the Internet connection from and to the service provider, etc. so anyway; what you are talking about here is relative performance. the same algorithm will have the same complexity (relative bounds) despite the language its implemented in. however, in terms of absolute performance languages will have different performances. the main reason php is slower than c is because its interpreted, duh. thats why a O(n) algorithm in php will run slower than the same O(n) algorithm in c. thats what the great computer language shootout is all about. maybe you should take a look ;) for example heres c vs. php; http://shootout.alioth.debian.org/gp4/benchmark.php?test=alllang=gcclang2=php its quite clear that c outperforms php on every algorithm. you can click the links on each test to see the implementation of each algorithm in a given language. and if you think you can improve the performance of a given algorithm in a given language, then you can submit your code and see if it actually runs faster. thats what the game part is :D and actually as a complete side note c++ is actually topping c these days. -nathan
