php-general Digest 12 Jul 2010 15:27:29 -0000 Issue 6842
php-general Digest 12 Jul 2010 15:27:29 - Issue 6842
Topics (messages 306829 through 306833):
Recupero di pen drive e memory card non più accessibili
306829 by: RDNewsLetter
Re: There has to be a better way!!
306830 by: Richard Quadling
Re: Static Class Member References
306831 by: Richard Quadling
help with sql statement
306832 by: Adam
306833 by: Ashley Sheridan
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--
---BeginMessage---
Non vedi più i tuoi dati personali o le foto a te più care contenute nella tua
pen drive o memory card perchè il supporto non viene più
riconosciuto dal sistema?
Devi sapere che abbiamo il 99% di casi positivi di recupero dati e files da pen
drive o memory card.
Goditi l'estate ci penseremo noi a recuperare tutti i files nella tua memoria
statica danneggiata.
Caratteristiche EcoStatic:
1.Ritiro del supporto a carico della RD data Rescue (valido solo per l'Italia e
la Svizzera);
2.Entro 90 gg riceverai l'esito, e se: Non ci sono files, non ci sono costi;
3.Per diagnosi positiva riceverai i tuoi file a solo 250,00 €;
4.Scaricherai i tuoi files comodamente dal tuo computer (fino ad 1Gb compresso,
altrimenti su DVD).
Per ulteriori informazioni contattaci:
- 800.031.677 (Italia)
- 091.68.20.545 (Svizzera)
Il servizio EcoStatic ha una durata limitata nel tempo, a discrezione della
direzione di RD data Rescue Sagl che ne comunicherà il termine con una
nuova comunicazione.
Cambia la tua sottoscrizione (
http://lnx.rddatarescue.it/joomla/index.php?option=com_acajoomItemid=999act=changesubscriber=88083cle=7c921edaf253c451737bf94d12a5b3bclistid=45
)
Cancellati (
http://lnx.rddatarescue.it/joomla/index.php?option=com_acajoomItemid=999act=unsubscribesubscriber=88083cle=7c921edaf253c451737bf94d12a5b3bclistid=45
)
Powered by Joobi ( http://www.ijoobi.com )
---End Message---
---BeginMessage---
On 11 July 2010 02:26, Jason Pruim li...@pruimphotography.com wrote:
On Jul 10, 2010, at 12:03 PM, Ashley Sheridan wrote:
On Sat, 2010-07-10 at 11:58 -0400, Jason Pruim wrote:
Okay so I've been fighting with this for awhile now and haven't found
a better way yet
What I want to do, is I have a small portion of my website included
into a template. It is displaying hosting plans so on the main site
index.php I want it to display a little bit of text (Same as on the
main hosting page) and just 1 random hosting plan. then if they click
on that plan and go into the main hosting section, I want them to see
ALL the hosting plans.
Here's the code that I'm using:
if($_SERVER['PHP_SELF'] = /index.php) {
$sql = SELECT * FROM `hosting` ORDER BY RAND() LIMIT 1;
}else{
$sql = SELECT * FROM `hosting` ORDER BY `hostingSort` ASC;
}
Now... I know there MUST be a better way to do it but I can't see the
tree's through the forest.
Any other way I could do it?
I'm avoiding having lots of duplicate code/text on my pages.
To avoid duplicating code, use an include file. If you already have some
form of include (for a DB for example) then you can include your other
includes in that.
Also, not sure if it was a type in your email, but I think you want to
use == in your if statement there, instead of = ;)
Hey Ash,
I may not have explained it properly :)
I have 2 files... hosting.php and hostingsmall.php which have the EXACT same
content in them other then the SQL statement. Hostingsmall.php has a LIMIT
1 at the end...
What I want to do is be able to get rid of hostingsmall.php which is
currently included on my main page and run it all off of hosting.php but
still be able to limit the query at the front page...
the $_SERVER['PHP_SELF'] seems to be doing the trick... Just wanted to find
a better way since I've heard you should trust PHP_SELF...
But if that's my best bet since it's working I can stick with it :)
If the only difference between the 2 files is the SQL statement, then
maybe you could ...
?php
// hosting.php
// Define SQL
$sql = ' ... ';
// Include template
include 'template.php';
?
And the same for hostingsmall.php, except you have a different SQL statement.
---End Message---
---BeginMessage---
On 11 July 2010 23:19, Daniel Kolbo kolb0...@umn.edu wrote:
Hello PHPers,
I'm having some trouble understanding some PHP behaviour. The following
example script exhibits the behaviour which I cannot understand.
[code]
?php
class A
{
public static $a = 3;
function __construct()
{
//self::$a = $this; //[i]
self::$a = $this; //[ii]
}
}
class B extends A
{
function __construct()
{
parent::__construct();
[PHP] Recupero di pen drive e memory card non più accessibili
Non vedi più i tuoi dati personali o le foto a te più care contenute nella tua pen drive o memory card perchè il supporto non viene più riconosciuto dal sistema? Devi sapere che abbiamo il 99% di casi positivi di recupero dati e files da pen drive o memory card. Goditi l'estate ci penseremo noi a recuperare tutti i files nella tua memoria statica danneggiata. Caratteristiche EcoStatic: 1.Ritiro del supporto a carico della RD data Rescue (valido solo per l'Italia e la Svizzera); 2.Entro 90 gg riceverai l'esito, e se: Non ci sono files, non ci sono costi; 3.Per diagnosi positiva riceverai i tuoi file a solo 250,00 €; 4.Scaricherai i tuoi files comodamente dal tuo computer (fino ad 1Gb compresso, altrimenti su DVD). Per ulteriori informazioni contattaci: - 800.031.677 (Italia) - 091.68.20.545 (Svizzera) Il servizio EcoStatic ha una durata limitata nel tempo, a discrezione della direzione di RD data Rescue Sagl che ne comunicherà il termine con una nuova comunicazione. Cambia la tua sottoscrizione ( http://lnx.rddatarescue.it/joomla/index.php?option=com_acajoomItemid=999act=changesubscriber=88083cle=7c921edaf253c451737bf94d12a5b3bclistid=45 ) Cancellati ( http://lnx.rddatarescue.it/joomla/index.php?option=com_acajoomItemid=999act=unsubscribesubscriber=88083cle=7c921edaf253c451737bf94d12a5b3bclistid=45 ) Powered by Joobi ( http://www.ijoobi.com )
Re: [PHP] There has to be a better way!!
On 11 July 2010 02:26, Jason Pruim li...@pruimphotography.com wrote:
On Jul 10, 2010, at 12:03 PM, Ashley Sheridan wrote:
On Sat, 2010-07-10 at 11:58 -0400, Jason Pruim wrote:
Okay so I've been fighting with this for awhile now and haven't found
a better way yet
What I want to do, is I have a small portion of my website included
into a template. It is displaying hosting plans so on the main site
index.php I want it to display a little bit of text (Same as on the
main hosting page) and just 1 random hosting plan. then if they click
on that plan and go into the main hosting section, I want them to see
ALL the hosting plans.
Here's the code that I'm using:
if($_SERVER['PHP_SELF'] = /index.php) {
$sql = SELECT * FROM `hosting` ORDER BY RAND() LIMIT 1;
}else{
$sql = SELECT * FROM `hosting` ORDER BY `hostingSort` ASC;
}
Now... I know there MUST be a better way to do it but I can't see the
tree's through the forest.
Any other way I could do it?
I'm avoiding having lots of duplicate code/text on my pages.
To avoid duplicating code, use an include file. If you already have some
form of include (for a DB for example) then you can include your other
includes in that.
Also, not sure if it was a type in your email, but I think you want to
use == in your if statement there, instead of = ;)
Hey Ash,
I may not have explained it properly :)
I have 2 files... hosting.php and hostingsmall.php which have the EXACT same
content in them other then the SQL statement. Hostingsmall.php has a LIMIT
1 at the end...
What I want to do is be able to get rid of hostingsmall.php which is
currently included on my main page and run it all off of hosting.php but
still be able to limit the query at the front page...
the $_SERVER['PHP_SELF'] seems to be doing the trick... Just wanted to find
a better way since I've heard you should trust PHP_SELF...
But if that's my best bet since it's working I can stick with it :)
If the only difference between the 2 files is the SQL statement, then
maybe you could ...
?php
// hosting.php
// Define SQL
$sql = ' ... ';
// Include template
include 'template.php';
?
And the same for hostingsmall.php, except you have a different SQL statement.
--
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Re: [PHP] Static Class Member References
On 11 July 2010 23:19, Daniel Kolbo kolb0...@umn.edu wrote:
Hello PHPers,
I'm having some trouble understanding some PHP behaviour. The following
example script exhibits the behaviour which I cannot understand.
[code]
?php
class A
{
public static $a = 3;
function __construct()
{
//self::$a = $this; //[i]
self::$a = $this; //[ii]
}
}
class B extends A
{
function __construct()
{
parent::__construct();
}
}
class C {
var $c;
function __construct()
{
$this-c = A::$a;
}
}
$c = new C;
$b = new B;
$cee = new C;
var_dump($c-c); // [i] prints object(B), but [ii] prints int 3
var_dump($cee-c); // [i] prints object(B), and [ii] prints object(B)
?
[/code]
Why does $c-c print 'int 3' ?
I'm nervous to use self::$a = $this; because I don't want to be
copying the whole object. However, isn't $this just a reference to the
object, so self::$a = $this; is just copying the reference and not the
actual object, right?
Thanks in advance
What do you think the value should be?
A static property is bound to the class and not to an instance of the class.
So, A::$a is a reference to the static value. If you alter the value,
it will be altered for a subclasses of A and for any other reference
to it.
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[PHP] help with sql statement
I was google searching, and the only SQL mailing list I found is currently giving a 503 error, so I hope you don't mind me asking my SQL question here, since there are a lot of SQL gurus here. I am having a syntax problem: Instead of doing a query like this:: select SMS_R_SYSTEM.Name from SMS_R_System where (SMS_R_System.SystemOUName = example.com/COMPUTERS/MAIN CAMPUS/ABC) or (SMS_R_System.SystemOUName = example.com/COMPUTERS/MAIN CAMPUS/XYZ) I'd like to shorten it in the where clause to: select SMS_R_SYSTEM.Name from SMS_R_System where (SMS_R_System.SystemOUName = example.com/COMPUTERS/MAIN CAMPUS/ABC, example.com/COMPUTERS/MAIN CAMPUS/XYZ) But I'm getting a syntax error. Any idea why my SQL syntax isn't valid? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] help with sql statement
On Mon, 2010-07-12 at 10:24 -0500, Adam wrote: I was google searching, and the only SQL mailing list I found is currently giving a 503 error, so I hope you don't mind me asking my SQL question here, since there are a lot of SQL gurus here. I am having a syntax problem: Instead of doing a query like this:: select SMS_R_SYSTEM.Name from SMS_R_System where (SMS_R_System.SystemOUName = example.com/COMPUTERS/MAIN CAMPUS/ABC) or (SMS_R_System.SystemOUName = example.com/COMPUTERS/MAIN CAMPUS/XYZ) I'd like to shorten it in the where clause to: select SMS_R_SYSTEM.Name from SMS_R_System where (SMS_R_System.SystemOUName = example.com/COMPUTERS/MAIN CAMPUS/ABC, example.com/COMPUTERS/MAIN CAMPUS/XYZ) But I'm getting a syntax error. Any idea why my SQL syntax isn't valid? The short answer is your syntax isn't valid, which means that what you've written isn't valid SQL :p What I think you're looking for instead is something like this: SELECT SMS_R_SYSTEM.Name FROM SMS_R_System WHERE SMS_R_System.SystemOUName IN (example.com/COMPUTERS/MAIN CAMPUS/ABC, example.com/COMPUTERS/MAIN CAMPUS/XYZ) which lets MySQL compare the field against an array of different values within the brackets. Thanks, Ash http://www.ashleysheridan.co.uk
RE: [PHP] help with sql statement
-Original Message- From: Ashley Sheridan [mailto:a...@ashleysheridan.co.uk] Sent: Monday, July 12, 2010 8:26 AM To: Adam Cc: PHP General Subject: Re: [PHP] help with sql statement On Mon, 2010-07-12 at 10:24 -0500, Adam wrote: I was google searching, and the only SQL mailing list I found is currently giving a 503 error, so I hope you don't mind me asking my SQL question here, since there are a lot of SQL gurus here. I am having a syntax problem: Instead of doing a query like this:: select SMS_R_SYSTEM.Name from SMS_R_System where (SMS_R_System.SystemOUName = example.com/COMPUTERS/MAIN CAMPUS/ABC) or (SMS_R_System.SystemOUName = example.com/COMPUTERS/MAIN CAMPUS/XYZ) I'd like to shorten it in the where clause to: select SMS_R_SYSTEM.Name from SMS_R_System where (SMS_R_System.SystemOUName = example.com/COMPUTERS/MAIN CAMPUS/ABC, example.com/COMPUTERS/MAIN CAMPUS/XYZ) But I'm getting a syntax error. Any idea why my SQL syntax isn't valid? The short answer is your syntax isn't valid, which means that what you've written isn't valid SQL :p What I think you're looking for instead is something like this: SELECT SMS_R_SYSTEM.Name FROM SMS_R_System WHERE SMS_R_System.SystemOUName IN (example.com/COMPUTERS/MAIN CAMPUS/ABC, example.com/COMPUTERS/MAIN CAMPUS/XYZ) Even shorter ;) SELECT srs.Name FROM SMS_R_System srs WHERE srs.SystemOUName IN (example.com/COMPUTERS/MAIN CAMPUS/ABC, example.com/COMPUTERS/MAIN CAMPUS/XYZ) which lets MySQL compare the field against an array of different values within the brackets. Given his syntax, I'd guess that his RDBMS is MS SQL and he's trying to get some info from the DB that's populated by MS' SMS. Regards, Tommy Thanks, Ash http://www.ashleysheridan.co.uk -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
[PHP] Looking for a little MySQL help as well
Hey All, I am looking for a little MySQL Query help as well. I am not getting any response form the MySQl Email list to my query. And knowing there are some SQL wizards on this list I thought I would as for help as well. I have one table with products that many have one or more categories. I am using an index table and am having trouble getting a proper result set. Table 1 Product_id | Product_Name 1| Product A 2| Product B 3| Product C Table 2 Category_id | Category_Name 1 | Admin 2 | Marketing 3 | Support 4 | IT Table 3 Product_id | Category_id 1| 1 1| 3 2| 2 3| 3 3| 4 Result would look like Product A, Admin, Support Product B, Marketing Product C, Support, IT I believe this is a one to many using an index table? I appreciate any help. Thanks. Blessed Be Phillip If you try to protect idiots from themselves, even if you succeed, you just wind up filling the world with idiots. - - Doug Casey
[PHP] Validate if the field of a form is empty
Hi, I need to validate a field that work with Multifile plugin of Jquery, I want to check if the field is empty with php. [code] input name=archivo[] class=multi type=file accept=gif|jpg|png/ input name=button type=submit value=Submit [code] I've tried different ways but it does not work: for example: $field = $_FILES[archivo][name]; $field = $_FILES[archivo[]][name]; i dont know how to validate it, any help would be appreciated. Thanks,
Re: [PHP] Looking for a little MySQL help as well
Phillip Baker wrote: Hey All, I am looking for a little MySQL Query help as well. I am not getting any response form the MySQl Email list to my query. And knowing there are some SQL wizards on this list I thought I would as for help as well. I have one table with products that many have one or more categories. I am using an index table and am having trouble getting a proper result set. Table 1 Product_id | Product_Name 1| Product A 2| Product B 3| Product C Table 2 Category_id | Category_Name 1 | Admin 2 | Marketing 3 | Support 4 | IT Table 3 Product_id | Category_id 1| 1 1| 3 2| 2 3| 3 3| 4 Result would look like Product A, Admin, Support Product B, Marketing Product C, Support, IT I believe this is a one to many using an index table? I appreciate any help. Thanks. Blessed Be Phillip If you try to protect idiots from themselves, even if you succeed, you just wind up filling the world with idiots. - - Doug Casey SELECT products.Product_Name, categories.Category_Name FROM products, categories, p2c_map WHERE products.Product_ID = p2c_map.Product_ID AND categories.Category_ID = p2c_map.Category_ID Gives the results that you are looking for. Once you get the data, you must concat things your self, but it is everything that you are looking for. To search for Categories of a given product, you would add this to the WHERE section AND products.Product_Name = 'Product A' of, if you were looking for all the products in a given category, you would add this AND categories.Category_Name = 'Category 1' The following is the table structure that I am using with mock data. CREATE TABLE IF NOT EXISTS `categories` ( `Category_ID` int(11) NOT NULL auto_increment, `Category_Name` varchar(16) collate latin1_bin NOT NULL, PRIMARY KEY (`Category_ID`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_bin AUTO_INCREMENT=5 ; INSERT INTO `categories` (`Category_ID`, `Category_Name`) VALUES (1, 'Category 1'),(2, 'Category 2'),(3, 'Category 3'),(4, 'Category 4'); CREATE TABLE IF NOT EXISTS `p2c_map` ( `Product_id` int(11) NOT NULL, `Category_ID` int(11) NOT NULL, PRIMARY KEY (`Product_id`,`Category_ID`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_bin; INSERT INTO `p2c_map` (`Product_id`, `Category_ID`) VALUES (1, 1),(1, 2),(1, 4),(2, 2),(2, 3),(3, 4),(4, 1),(4, 4); CREATE TABLE IF NOT EXISTS `products` ( `Product_ID` int(11) NOT NULL auto_increment, `Product_Name` varchar(16) collate latin1_bin NOT NULL, PRIMARY KEY (`Product_ID`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_bin AUTO_INCREMENT=5 ; INSERT INTO `products` (`Product_ID`, `Product_Name`) VALUES (1, 'Product A'),(2, 'Product B'),(3, 'Product C'),(4, 'Product D'); -- Jim Lucas A: Maybe because some people are too annoyed by top-posting. Q: Why do I not get an answer to my question(s)? A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Validate if the field of a form is empty
te0t3l wrote:
Hi, I need to validate a field that work with Multifile plugin of Jquery,
I want to check if the field is empty with php.
[code]
input name=archivo[] class=multi type=file accept=gif|jpg|png/
input name=button type=submit value=Submit
[code]
I've tried different ways but it does not work:
for example:
$field = $_FILES[archivo][name];
$field = $_FILES[archivo[]][name];
i dont know how to validate it, any help would be appreciated.
Thanks,
To see what is happening, look at the output of print_r($_FILES);
But, you should be doing it like this.
foreach ( $_FILES[archivo] AS $file ) {
$field = $file['name'];
...
}
--
Jim Lucas
A: Maybe because some people are too annoyed by top-posting.
Q: Why do I not get an answer to my question(s)?
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
--
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Re: [PHP] Looking for a little MySQL help as well
Thanks Jim, This outputs 2 results. Is there a way to get the one result set per product regardless of the number of categories associated with the product, yet displaying all the categories associated with said prodcut? Blessed Be Phillip If you try to protect idiots from themselves, even if you succeed, you just wind up filling the world with idiots. - - Doug Casey On Mon, Jul 12, 2010 at 12:21 PM, Jim Lucas li...@cmsws.com wrote: Phillip Baker wrote: Hey All, I am looking for a little MySQL Query help as well. I am not getting any response form the MySQl Email list to my query. And knowing there are some SQL wizards on this list I thought I would as for help as well. I have one table with products that many have one or more categories. I am using an index table and am having trouble getting a proper result set. Table 1 Product_id | Product_Name 1| Product A 2| Product B 3| Product C Table 2 Category_id | Category_Name 1 | Admin 2 | Marketing 3 | Support 4 | IT Table 3 Product_id | Category_id 1| 1 1| 3 2| 2 3| 3 3| 4 Result would look like Product A, Admin, Support Product B, Marketing Product C, Support, IT I believe this is a one to many using an index table? I appreciate any help. Thanks. Blessed Be Phillip If you try to protect idiots from themselves, even if you succeed, you just wind up filling the world with idiots. - - Doug Casey SELECT products.Product_Name, categories.Category_Name FROM products, categories, p2c_map WHERE products.Product_ID = p2c_map.Product_ID AND categories.Category_ID = p2c_map.Category_ID Gives the results that you are looking for. Once you get the data, you must concat things your self, but it is everything that you are looking for. To search for Categories of a given product, you would add this to the WHERE section AND products.Product_Name = 'Product A' of, if you were looking for all the products in a given category, you would add this AND categories.Category_Name = 'Category 1' The following is the table structure that I am using with mock data. CREATE TABLE IF NOT EXISTS `categories` ( `Category_ID` int(11) NOT NULL auto_increment, `Category_Name` varchar(16) collate latin1_bin NOT NULL, PRIMARY KEY (`Category_ID`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_bin AUTO_INCREMENT=5 ; INSERT INTO `categories` (`Category_ID`, `Category_Name`) VALUES (1, 'Category 1'),(2, 'Category 2'),(3, 'Category 3'),(4, 'Category 4'); CREATE TABLE IF NOT EXISTS `p2c_map` ( `Product_id` int(11) NOT NULL, `Category_ID` int(11) NOT NULL, PRIMARY KEY (`Product_id`,`Category_ID`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_bin; INSERT INTO `p2c_map` (`Product_id`, `Category_ID`) VALUES (1, 1),(1, 2),(1, 4),(2, 2),(2, 3),(3, 4),(4, 1),(4, 4); CREATE TABLE IF NOT EXISTS `products` ( `Product_ID` int(11) NOT NULL auto_increment, `Product_Name` varchar(16) collate latin1_bin NOT NULL, PRIMARY KEY (`Product_ID`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_bin AUTO_INCREMENT=5 ; INSERT INTO `products` (`Product_ID`, `Product_Name`) VALUES (1, 'Product A'),(2, 'Product B'),(3, 'Product C'),(4, 'Product D'); -- Jim Lucas A: Maybe because some people are too annoyed by top-posting. Q: Why do I not get an answer to my question(s)? A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing?
[PHP] Serial Numbers
I'm sure it is possible, but I am unsure how to do this. I have created a Sale coupon that I was going to put up on a site that I manage, for visitors to print out and bring to the store. The coupon is currently a .png, however I was planning on converting to a pdf. I would like to put on the coupon a serial number that increases by 1 everytime the page is viewed. I dont really care if someone refreshes the page and skews the numbers. Is this possible and could someone give me some help? Thanks Gary __ Information from ESET Smart Security, version of virus signature database 5273 (20100712) __ The message was checked by ESET Smart Security. http://www.eset.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Serial Numbers
Perhaps using a static variable might help? I am just guessing. --Shreyas On Tue, Jul 13, 2010 at 12:22 AM, Gary gp...@paulgdesigns.com wrote: I'm sure it is possible, but I am unsure how to do this. I have created a Sale coupon that I was going to put up on a site that I manage, for visitors to print out and bring to the store. The coupon is currently a .png, however I was planning on converting to a pdf. I would like to put on the coupon a serial number that increases by 1 everytime the page is viewed. I dont really care if someone refreshes the page and skews the numbers. Is this possible and could someone give me some help? Thanks Gary __ Information from ESET Smart Security, version of virus signature database 5273 (20100712) __ The message was checked by ESET Smart Security. http://www.eset.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php -- Regards, Shreyas Agasthya
Re: [PHP] Serial Numbers
On Mon, 2010-07-12 at 14:52 -0400, Gary wrote: I'm sure it is possible, but I am unsure how to do this. I have created a Sale coupon that I was going to put up on a site that I manage, for visitors to print out and bring to the store. The coupon is currently a .png, however I was planning on converting to a pdf. I would like to put on the coupon a serial number that increases by 1 everytime the page is viewed. I dont really care if someone refreshes the page and skews the numbers. Is this possible and could someone give me some help? Thanks Gary __ Information from ESET Smart Security, version of virus signature database 5273 (20100712) __ The message was checked by ESET Smart Security. http://www.eset.com You need some indicator on your server to keep track of the number. To me, the ideal solution would appear to be a MySQL database. You can set up a table with an auto_increment field and use the id generated from that. Two things to maybe note: 1. Don't use MAX(id) in a query to get the next auto value, use something like mysql_insert_id() instead. The MAX() method is just a race condition waiting to happen. 2. If you expect a lot of traffic, then consider setting this table to use the InnoDB engine instead of MyIsam which is usually the default. This allows MySQL to apply row-level locking instead of table-level, which can improve performance when PHP has to wait for MySQL. Thanks, Ash http://www.ashleysheridan.co.uk
Re: [PHP] Serial Numbers
On Jul 12, 2010, at 2:52 PM, Gary wrote: I'm sure it is possible, but I am unsure how to do this. I have created a Sale coupon that I was going to put up on a site that I manage, for visitors to print out and bring to the store. The coupon is currently a .png, however I was planning on converting to a pdf. I would like to put on the coupon a serial number that increases by 1 everytime the page is viewed. I dont really care if someone refreshes the page and skews the numbers. Is this possible and could someone give me some help? Thanks Gary Is there any particular reason you need it to be a PDF? If not and the GD library is installed in your PHP, I would suggest using the GD library to draw your serial number on the coupon. As for keeping track of the counter I would do it either in a database table or save the number to file. Take care, Floyd -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Serial Numbers
On Mon, 2010-07-12 at 15:17 -0400, Floyd Resler wrote: On Jul 12, 2010, at 2:52 PM, Gary wrote: I'm sure it is possible, but I am unsure how to do this. I have created a Sale coupon that I was going to put up on a site that I manage, for visitors to print out and bring to the store. The coupon is currently a .png, however I was planning on converting to a pdf. I would like to put on the coupon a serial number that increases by 1 everytime the page is viewed. I dont really care if someone refreshes the page and skews the numbers. Is this possible and could someone give me some help? Thanks Gary Is there any particular reason you need it to be a PDF? If not and the GD library is installed in your PHP, I would suggest using the GD library to draw your serial number on the coupon. As for keeping track of the counter I would do it either in a database table or save the number to file. Take care, Floyd I can think of a good reason for making it as a PDF. A PDF is built for printing to scale exactly as you need, whereas a bitmap is very different. Traditionally, GD creates screen images, which are 72dpi, whereas print usually uses 300dpi bitmaps, and they generally don't scale well. Having said that, writing it in GD will be a fair bit easier! Thanks, Ash http://www.ashleysheridan.co.uk
Re: [PHP] Serial Numbers
On Jul 12, 2010, at 3:22 PM, Ashley Sheridan wrote: On Mon, 2010-07-12 at 15:17 -0400, Floyd Resler wrote: On Jul 12, 2010, at 2:52 PM, Gary wrote: I'm sure it is possible, but I am unsure how to do this. I have created a Sale coupon that I was going to put up on a site that I manage, for visitors to print out and bring to the store. The coupon is currently a .png, however I was planning on converting to a pdf. I would like to put on the coupon a serial number that increases by 1 everytime the page is viewed. I dont really care if someone refreshes the page and skews the numbers. Is this possible and could someone give me some help? Thanks Gary Is there any particular reason you need it to be a PDF? If not and the GD library is installed in your PHP, I would suggest using the GD library to draw your serial number on the coupon. As for keeping track of the counter I would do it either in a database table or save the number to file. Take care, Floyd I can think of a good reason for making it as a PDF. A PDF is built for printing to scale exactly as you need, whereas a bitmap is very different. Traditionally, GD creates screen images, which are 72dpi, whereas print usually uses 300dpi bitmaps, and they generally don't scale well. Having said that, writing it in GD will be a fair bit easier! Thanks, Ash http://www.ashleysheridan.co.uk Having said that, writing it in GD will be a fair bit easier! Yep, that's why I was asking! :) Take care, Floyd
Re: [PHP] Serial Numbers
Floyd Resler fres...@adex-intl.com wrote in message news:e6321b00-590d-4294-9b81-81cc92883...@adex-intl.com... On Jul 12, 2010, at 2:52 PM, Gary wrote: I'm sure it is possible, but I am unsure how to do this. I have created a Sale coupon that I was going to put up on a site that I manage, for visitors to print out and bring to the store. The coupon is currently a .png, however I was planning on converting to a pdf. I would like to put on the coupon a serial number that increases by 1 everytime the page is viewed. I dont really care if someone refreshes the page and skews the numbers. Is this possible and could someone give me some help? Thanks Gary Is there any particular reason you need it to be a PDF? If not and the GD library is installed in your PHP, I would suggest using the GD library to draw your serial number on the coupon. As for keeping track of the counter I would do it either in a database table or save the number to file. Take care, Floyd Floyd Thanks for your reponse. No real reason that the file has to be a pdf, that was my original plan before I came up with the counter idea.. I also thought it might not be as difficult to put the script on a pdf. I have used the GD library in the past, so it is installed on the server, however I dont know how to apply to this situation.. After I posted the question, the thought came to me to simply create the coupon in html and include a simple counter, like a hit counter, but since I had the png already created, I was hoping there was a way to include the script on it instead of recreating in html/php. Gary __ Information from ESET Smart Security, version of virus signature database 5273 (20100712) __ The message was checked by ESET Smart Security. http://www.eset.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Looking for a little MySQL help as well
-Original Message- From: Phillip Baker [mailto:phil...@freewolf.net] Sent: Monday, July 12, 2010 11:36 AM To: Jim Lucas Cc: PHP General List Subject: Re: [PHP] Looking for a little MySQL help as well Thanks Jim, This outputs 2 results. Is there a way to get the one result set per product regardless of the number of categories associated with the product, yet displaying all the categories associated with said prodcut? Blessed Be Phillip snip Phillip, What you're asking for requires the use of (IIRC) 'cursors'. I don't know if MySQL's meaning/usage of 'cursors' is the same as MSSQL. Either way, you'll need to write some serious (read pain in the a**) Stored Procedure (SP). You're better off implementing that in PHP loop containing 'if' since you're not a DBA ;). Regards, Tommy -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Serial Numbers
Ashley Sheridan a...@ashleysheridan.co.uk wrote in message news:1278962039.2202.5.ca...@localhost... On Mon, 2010-07-12 at 14:52 -0400, Gary wrote: I'm sure it is possible, but I am unsure how to do this. I have created a Sale coupon that I was going to put up on a site that I manage, for visitors to print out and bring to the store. The coupon is currently a .png, however I was planning on converting to a pdf. I would like to put on the coupon a serial number that increases by 1 everytime the page is viewed. I dont really care if someone refreshes the page and skews the numbers. Is this possible and could someone give me some help? Thanks Gary __ Information from ESET Smart Security, version of virus signature database 5273 (20100712) __ The message was checked by ESET Smart Security. http://www.eset.com You need some indicator on your server to keep track of the number. To me, the ideal solution would appear to be a MySQL database. You can set up a table with an auto_increment field and use the id generated from that. Two things to maybe note: 1. Don't use MAX(id) in a query to get the next auto value, use something like mysql_insert_id() instead. The MAX() method is just a race condition waiting to happen. 2. If you expect a lot of traffic, then consider setting this table to use the InnoDB engine instead of MyIsam which is usually the default. This allows MySQL to apply row-level locking instead of table-level, which can improve performance when PHP has to wait for MySQL. Thanks, Ash http://www.ashleysheridan.co.uk Ashley Thanks for your reply. I was not going to go to the trouble of calling the AI number from a database, although that is an interesting concept. The question really becomes How to insert into an image I could just write a simple hit counter and create a new php/html page, but since the image (coupon) was already created, I thought it would be easier, not to mention expand my abilities. It is a small shop and if they get 100 coupons, they will be extatic, so it will not kill us if it were too much trouble. I have gone to using InnoDB as my standard table, mainly for the foreign key ability, but I do keep reading that there are more and more advantage to using is over Myisam. Thanks again for your reply. Gary __ Information from ESET Smart Security, version of virus signature database 5273 (20100712) __ The message was checked by ESET Smart Security. http://www.eset.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Looking for a little MySQL help as well
Thanks Tommy, Damn. I was hoping to avoid that and get all the information in one query rather than running a ton of queries. :-( But might be why I am having trouble finding an answer for this on the net. Blessed Be Phillip If you try to protect idiots from themselves, even if you succeed, you just wind up filling the world with idiots. - - Doug Casey On Mon, Jul 12, 2010 at 1:37 PM, Tommy Pham tommy...@gmail.com wrote: -Original Message- From: Phillip Baker [mailto:phil...@freewolf.net] Sent: Monday, July 12, 2010 11:36 AM To: Jim Lucas Cc: PHP General List Subject: Re: [PHP] Looking for a little MySQL help as well Thanks Jim, This outputs 2 results. Is there a way to get the one result set per product regardless of the number of categories associated with the product, yet displaying all the categories associated with said prodcut? Blessed Be Phillip snip Phillip, What you're asking for requires the use of (IIRC) 'cursors'. I don't know if MySQL's meaning/usage of 'cursors' is the same as MSSQL. Either way, you'll need to write some serious (read pain in the a**) Stored Procedure (SP). You're better off implementing that in PHP loop containing 'if' since you're not a DBA ;). Regards, Tommy -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Looking for a little MySQL help as well
From: Phillip Baker [mailto:phil...@freewolf.net]
Sent: Monday, July 12, 2010 1:33 PM
To: Tommy Pham
Cc: PHP General List
Subject: Re: [PHP] Looking for a little MySQL help as well
Thanks Tommy,
Damn.
I was hoping to avoid that and get all the information in one query rather
than running a ton of queries. :-(
But might be why I am having trouble finding an answer for this on the net.
Blessed Be
Phillip
Phillip,
I think you misunderstood. Your query is still 1 query. You just loop
through the results and compare certain field for changes using 'if' to get
the desired effect for your sample tables:
Table 1
Product_id | Product_Name
1| Product A
2| Product B
3| Product C
Table 2
Category_id | Category_Name
1 | Admin
2 | Marketing
3 | Support
4 | IT
Table 3
Product_id | Category_id
1| 1
1| 3
2| 2
3| 3
3| 4
Result would look like
Product A, Admin, Support
Product B, Marketing
Product C, Support, IT
Here's the pseudo code:
$last_product_id = null;
$current_product_id = null;
Loop $result_set if not end of $result_set
$current_product_id = get(Product_id) from $result_set;
If ($last_product_id != $current_product_id)
{
$last_product_id = $current_product_id;
$product_name = get(Product_Name) from $result_set;
$category_name = get(Category_Name) from $result_set;
}
Else
{
$category_name .= ', '. get(Category_Name) from $result_set;
}
// do as you will with $product_name $category_name
Next loop iteration
IMO, this is way faster to implement than trying to figure out all that SP
stuff since we're not DBAs ;) . As for overall performance, I don't know if
this is faster than SP. You'll just have to analyze your data size and what
kind of traffic you're getting vs. hardware(s) you have to see if it's worth
the time to learn how to write SP. Just an FYI, once you get into complex
situations, SP have higher security and generally have better performance
than just standard queries.
Regards,
Tommy
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Re: [PHP] Static Class Member References
Richard Quadling wrote:
On 11 July 2010 23:19, Daniel Kolbo kolb0...@umn.edu wrote:
Hello PHPers,
I'm having some trouble understanding some PHP behaviour. The following
example script exhibits the behaviour which I cannot understand.
[code]
?php
class A
{
public static $a = 3;
function __construct()
{
//self::$a = $this; //[i]
self::$a = $this; //[ii]
}
}
class B extends A
{
function __construct()
{
parent::__construct();
}
}
class C {
var $c;
function __construct()
{
$this-c = A::$a;
}
}
$c = new C;
$b = new B;
$cee = new C;
var_dump($c-c); // [i] prints object(B), but [ii] prints int 3
var_dump($cee-c); // [i] prints object(B), and [ii] prints object(B)
?
[/code]
Why does $c-c print 'int 3' ?
I'm nervous to use self::$a = $this; because I don't want to be
copying the whole object. However, isn't $this just a reference to the
object, so self::$a = $this; is just copying the reference and not the
actual object, right?
Thanks in advance
What do you think the value should be?
A static property is bound to the class and not to an instance of the class.
So, A::$a is a reference to the static value. If you alter the value,
it will be altered for a subclasses of A and for any other reference
to it.
I think
var_dump($c-c); would print object(B), but it's printing int 3.
The reference is *not* being updated. I think this is a bug. What do
you think?
Thanks
`
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Re: [PHP] Looking for a little MySQL help as well
Phillip Baker wrote: Thanks Jim, This outputs 2 results. Is there a way to get the one result set per product regardless of the number of categories associated with the product, yet displaying all the categories associated with said prodcut? Run this: SELECT p.Product_Name, GROUP_CONCAT(c.Category_Name SEPARATOR ', ') AS Category_Names FROM p2c_map AS pc INNER JOIN products AS p ON p.Product_ID = pc.Product_ID INNER JOIN categories AS c ON FIND_IN_SET(c.Category_ID, pc.Category_ID) 0 GROUP BY pc.Product_ID When I run this in phpMyAdmin it gives me a blob result, but when you run it from the CLI it will return the correct thing. Blessed Be Phillip If you try to protect idiots from themselves, even if you succeed, you just wind up filling the world with idiots. - - Doug Casey On Mon, Jul 12, 2010 at 12:21 PM, Jim Lucas li...@cmsws.com wrote: Phillip Baker wrote: Hey All, I am looking for a little MySQL Query help as well. I am not getting any response form the MySQl Email list to my query. And knowing there are some SQL wizards on this list I thought I would as for help as well. I have one table with products that many have one or more categories. I am using an index table and am having trouble getting a proper result set. Table 1 Product_id | Product_Name 1| Product A 2| Product B 3| Product C Table 2 Category_id | Category_Name 1 | Admin 2 | Marketing 3 | Support 4 | IT Table 3 Product_id | Category_id 1| 1 1| 3 2| 2 3| 3 3| 4 Result would look like Product A, Admin, Support Product B, Marketing Product C, Support, IT I believe this is a one to many using an index table? I appreciate any help. Thanks. Blessed Be Phillip If you try to protect idiots from themselves, even if you succeed, you just wind up filling the world with idiots. - - Doug Casey SELECT products.Product_Name, categories.Category_Name FROM products, categories, p2c_map WHERE products.Product_ID = p2c_map.Product_ID AND categories.Category_ID = p2c_map.Category_ID Gives the results that you are looking for. Once you get the data, you must concat things your self, but it is everything that you are looking for. To search for Categories of a given product, you would add this to the WHERE section AND products.Product_Name = 'Product A' of, if you were looking for all the products in a given category, you would add this AND categories.Category_Name = 'Category 1' The following is the table structure that I am using with mock data. CREATE TABLE IF NOT EXISTS `categories` ( `Category_ID` int(11) NOT NULL auto_increment, `Category_Name` varchar(16) collate latin1_bin NOT NULL, PRIMARY KEY (`Category_ID`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_bin AUTO_INCREMENT=5 ; INSERT INTO `categories` (`Category_ID`, `Category_Name`) VALUES (1, 'Category 1'),(2, 'Category 2'),(3, 'Category 3'),(4, 'Category 4'); CREATE TABLE IF NOT EXISTS `p2c_map` ( `Product_id` int(11) NOT NULL, `Category_ID` int(11) NOT NULL, PRIMARY KEY (`Product_id`,`Category_ID`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_bin; INSERT INTO `p2c_map` (`Product_id`, `Category_ID`) VALUES (1, 1),(1, 2),(1, 4),(2, 2),(2, 3),(3, 4),(4, 1),(4, 4); CREATE TABLE IF NOT EXISTS `products` ( `Product_ID` int(11) NOT NULL auto_increment, `Product_Name` varchar(16) collate latin1_bin NOT NULL, PRIMARY KEY (`Product_ID`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_bin AUTO_INCREMENT=5 ; INSERT INTO `products` (`Product_ID`, `Product_Name`) VALUES (1, 'Product A'),(2, 'Product B'),(3, 'Product C'),(4, 'Product D'); -- Jim Lucas A: Maybe because some people are too annoyed by top-posting. Q: Why do I not get an answer to my question(s)? A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? -- Jim Lucas A: Maybe because some people are too annoyed by top-posting. Q: Why do I not get an answer to my question(s)? A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Serial Numbers
-Original Message- From: Gary [mailto:gp...@paulgdesigns.com] Sent: Monday, July 12, 2010 11:53 AM I'm sure it is possible, but I am unsure how to do this. I have created a Sale coupon that I was going to put up on a site that I manage, for visitors to print out and bring to the store. The coupon is currently a .png, however I was planning on converting to a pdf. I would like to put on the coupon a serial number that increases by 1 everytime the page is viewed. I dont really care if someone refreshes the page and skews the numbers. Is this possible and could someone give me some help? Is there a reason you need to increment by 1? I mean, are you going to validate the coupon someone brings in to see if it's in the database or is used already? Since you say you don't care if the number is skewed, it sounds as if you don't care about the code either really. Point being, why not just use md5(time()) or uniqid() or something and make some truly unique code (that you may or may not wish to store in a DB). This will be obscure enough the average person won't know that it isn't tracked and most likely won't try to make their own. If I saw 123457, I'm pretty sure I could make a coupon with 123500 on it. But if I saw 6ccd780c-baba-1026-9564-0040f4311e29 then I'm not really going to try and fudge one of those. Then I'd use the barcode library to print the code (again, doesn't have to actually work if you're not going to do a lookup) just to add more realizm to it. There are a billion different ways to make a unique ID. Even IF you are going to track them, you really shouldn't do a sequential code as you originally wanted to do. http://us.php.net/manual/en/function.uniqid.php http://php.net/manual/en/function.com-create-guid.php http://us.php.net/manual/en/function.mssql-guid-string.php http://us.php.net/manual/en/function.md5.php http://us.php.net/manual/en/function.sha1.php http://us.php.net/manual/en/function.hash.php http://us.php.net/manual/en/function.time.php http://dev.mysql.com/doc/refman/5.0/en/miscellaneous-functions.html#functio n_uuid Heck, you could even just use ip2long() on their IP address and then when someone redeems the coupon code, a simple long2ip() would tell you if it's a valid IP format rather than some hacked up string. http://us.php.net/manual/en/function.ip2long.php http://us.php.net/manual/en/function.long2ip.php Daevid. http://daevid.com Some people, when confronted with a problem, think 'I know, I'll use XML.' Now they have two problems. -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Login using just cookies, bad idea?
On 08/07/10 17:53, Michael Calkins wrote: I right now have a complete user login and registration system however it uses cookies when you login to store information. Is this a bad thing?$_COOKIE vs $_SESSION for login systems Encrypt the cookie, make sure you don't store the password in there, make sure it's salted, and validate the contents before using them. http://stut.net/2008/07/26/sessionless-sessions-2/ -Stuart -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Serial Numbers
Daevid Vincent dae...@daevid.com wrote in message news:a380a1570d4c4351b38e1cce2aabe...@mascorp.com... -Original Message- From: Gary [mailto:gp...@paulgdesigns.com] Sent: Monday, July 12, 2010 11:53 AM I'm sure it is possible, but I am unsure how to do this. I have created a Sale coupon that I was going to put up on a site that I manage, for visitors to print out and bring to the store. The coupon is currently a .png, however I was planning on converting to a pdf. I would like to put on the coupon a serial number that increases by 1 everytime the page is viewed. I dont really care if someone refreshes the page and skews the numbers. Is this possible and could someone give me some help? Is there a reason you need to increment by 1? I mean, are you going to validate the coupon someone brings in to see if it's in the database or is used already? Since you say you don't care if the number is skewed, it sounds as if you don't care about the code either really. Point being, why not just use md5(time()) or uniqid() or something and make some truly unique code (that you may or may not wish to store in a DB). This will be obscure enough the average person won't know that it isn't tracked and most likely won't try to make their own. If I saw 123457, I'm pretty sure I could make a coupon with 123500 on it. But if I saw 6ccd780c-baba-1026-9564-0040f4311e29 then I'm not really going to try and fudge one of those. Then I'd use the barcode library to print the code (again, doesn't have to actually work if you're not going to do a lookup) just to add more realizm to it. There are a billion different ways to make a unique ID. Even IF you are going to track them, you really shouldn't do a sequential code as you originally wanted to do. http://us.php.net/manual/en/function.uniqid.php http://php.net/manual/en/function.com-create-guid.php http://us.php.net/manual/en/function.mssql-guid-string.php http://us.php.net/manual/en/function.md5.php http://us.php.net/manual/en/function.sha1.php http://us.php.net/manual/en/function.hash.php http://us.php.net/manual/en/function.time.php http://dev.mysql.com/doc/refman/5.0/en/miscellaneous-functions.html#functio n_uuid Heck, you could even just use ip2long() on their IP address and then when someone redeems the coupon code, a simple long2ip() would tell you if it's a valid IP format rather than some hacked up string. http://us.php.net/manual/en/function.ip2long.php http://us.php.net/manual/en/function.long2ip.php Daevid. http://daevid.com Some people, when confronted with a problem, think 'I know, I'll use XML.' Now they have two problems. Daevid Thanks for your reply. The numbers are not for show, we are not trying to make it seem like we have thousands of coupons. We are going to use the numbers to guage how many times people see the coupon and to see how many it takes before we have someone show up to use it, but dont really care if someone gets a kick out of hitting the refresh button 10 or 20 times to watch the number go up. I was going to start the number at 72010001 (July 2010, 001) and if someone figured out what it was, we dont really care. As I mentioned, it is a small shop (one man show) that the site gets and average of 350 visits per month (which he is very happy with over what he had). Although I do like the idea of using there ip address... Thanks for your reply and all the links. Gary __ Information from ESET Smart Security, version of virus signature database 5273 (20100712) __ The message was checked by ESET Smart Security. http://www.eset.com -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Looking for a little MySQL help as well
Jim Lucas wrote: Phillip Baker wrote: Thanks Jim, This outputs 2 results. Is there a way to get the one result set per product regardless of the number of categories associated with the product, yet displaying all the categories associated with said prodcut? Run this: SELECT p.Product_Name, GROUP_CONCAT(c.Category_Name SEPARATOR ', ') AS Category_Names FROM p2c_map AS pc INNER JOIN products AS p ON p.Product_ID = pc.Product_ID INNER JOIN categories AS c ON FIND_IN_SET(c.Category_ID, pc.Category_ID) 0 GROUP BY pc.Product_ID When I run this in phpMyAdmin it gives me a blob result, but when you run it from the CLI it will return the correct thing. Forgot to give create where credit is due. I found an example of this method here and munged it to make it work with the example table structure and data examples. http://www.tek-tips.com/viewthread.cfm?qid=1541787page=15 And I looked here for usage of MySQLs GROUP_CONCAT() http://dev.mysql.com/doc/refman/5.1/en/group-by-functions.html#function_group-concat Enjoy, Jim Blessed Be Phillip If you try to protect idiots from themselves, even if you succeed, you just wind up filling the world with idiots. - - Doug Casey On Mon, Jul 12, 2010 at 12:21 PM, Jim Lucas li...@cmsws.com wrote: Phillip Baker wrote: Hey All, I am looking for a little MySQL Query help as well. I am not getting any response form the MySQl Email list to my query. And knowing there are some SQL wizards on this list I thought I would as for help as well. I have one table with products that many have one or more categories. I am using an index table and am having trouble getting a proper result set. Table 1 Product_id | Product_Name 1| Product A 2| Product B 3| Product C Table 2 Category_id | Category_Name 1 | Admin 2 | Marketing 3 | Support 4 | IT Table 3 Product_id | Category_id 1| 1 1| 3 2| 2 3| 3 3| 4 Result would look like Product A, Admin, Support Product B, Marketing Product C, Support, IT I believe this is a one to many using an index table? I appreciate any help. Thanks. Blessed Be Phillip If you try to protect idiots from themselves, even if you succeed, you just wind up filling the world with idiots. - - Doug Casey SELECT products.Product_Name, categories.Category_Name FROM products, categories, p2c_map WHERE products.Product_ID = p2c_map.Product_ID AND categories.Category_ID = p2c_map.Category_ID Gives the results that you are looking for. Once you get the data, you must concat things your self, but it is everything that you are looking for. To search for Categories of a given product, you would add this to the WHERE section AND products.Product_Name = 'Product A' of, if you were looking for all the products in a given category, you would add this AND categories.Category_Name = 'Category 1' The following is the table structure that I am using with mock data. CREATE TABLE IF NOT EXISTS `categories` ( `Category_ID` int(11) NOT NULL auto_increment, `Category_Name` varchar(16) collate latin1_bin NOT NULL, PRIMARY KEY (`Category_ID`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_bin AUTO_INCREMENT=5 ; INSERT INTO `categories` (`Category_ID`, `Category_Name`) VALUES (1, 'Category 1'),(2, 'Category 2'),(3, 'Category 3'),(4, 'Category 4'); CREATE TABLE IF NOT EXISTS `p2c_map` ( `Product_id` int(11) NOT NULL, `Category_ID` int(11) NOT NULL, PRIMARY KEY (`Product_id`,`Category_ID`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_bin; INSERT INTO `p2c_map` (`Product_id`, `Category_ID`) VALUES (1, 1),(1, 2),(1, 4),(2, 2),(2, 3),(3, 4),(4, 1),(4, 4); CREATE TABLE IF NOT EXISTS `products` ( `Product_ID` int(11) NOT NULL auto_increment, `Product_Name` varchar(16) collate latin1_bin NOT NULL, PRIMARY KEY (`Product_ID`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_bin AUTO_INCREMENT=5 ; INSERT INTO `products` (`Product_ID`, `Product_Name`) VALUES (1, 'Product A'),(2, 'Product B'),(3, 'Product C'),(4, 'Product D'); -- Jim Lucas A: Maybe because some people are too annoyed by top-posting. Q: Why do I not get an answer to my question(s)? A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? -- Jim Lucas A: Maybe because some people are too annoyed by top-posting. Q: Why do I not get an answer to my question(s)? A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] Looking for a little MySQL help as well
-Original Message- From: Jim Lucas [mailto:li...@cmsws.com] Sent: Monday, July 12, 2010 3:51 PM To: Phillip Baker Cc: PHP General List Subject: Re: [PHP] Looking for a little MySQL help as well Jim Lucas wrote: Phillip Baker wrote: Thanks Jim, This outputs 2 results. Is there a way to get the one result set per product regardless of the number of categories associated with the product, yet displaying all the categories associated with said prodcut? Run this: SELECT p.Product_Name, GROUP_CONCAT(c.Category_Name SEPARATOR ', ') AS Category_Names FROM p2c_map AS pc INNER JOIN products AS p ON p.Product_ID = pc.Product_ID INNER JOIN categories AS c ON FIND_IN_SET(c.Category_ID, pc.Category_ID) 0 GROUP BY pc.Product_ID When I run this in phpMyAdmin it gives me a blob result, but when you run it from the CLI it will return the correct thing. Forgot to give create where credit is due. I found an example of this method here and munged it to make it work with the example table structure and data examples. http://www.tek-tips.com/viewthread.cfm?qid=1541787page=15 And I looked here for usage of MySQLs GROUP_CONCAT() http://dev.mysql.com/doc/refman/5.1/en/group-by- functions.html#function_group-concat Enjoy, Jim snip Interesting links, Jim. Thanks. Phillip, just an FYI, GROUP_CONCAT() is non ANSI-SQL compliant. If you intend to migrate to another DBMS in the near future, you'll have to find another way to make it work as this built-in function is MySQL only. Regards, Tommy -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] Serial Numbers
On Mon, Jul 12, 2010 at 02:52:39PM -0400, Gary wrote: I'm sure it is possible, but I am unsure how to do this. I have created a Sale coupon that I was going to put up on a site that I manage, for visitors to print out and bring to the store. The coupon is currently a .png, however I was planning on converting to a pdf. I would like to put on the coupon a serial number that increases by 1 everytime the page is viewed. I dont really care if someone refreshes the page and skews the numbers. Is this possible and could someone give me some help? Doing this in a PDF is pretty easy. Check out the FPDF library. It's pretty lightweight. I print invoices to PDF all the time, so I have to insert numbers into PDFs created by FPDF. Check the documentation. Paul -- Paul M. Foster -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
