Comments for PHP Tutorials By Kloplop321 http://kloplop321.com/php-tutorials PHP video tutorials, for everyone. Sun, 04 Jul 2010 04:17:56 +0000 hourly 1 http://wordpress.org/?v=3.0 Comment on PHP & MySQL Tutorial 08: Mysql Login system concept by PHP Tutorials By Kloplop321 » Blog Archive » PHP & MySQL Tutorial 12: Logging into a Basic Blog http://kloplop321.com/php-tutorials/index.php/2010/03/12/php-mysql-tutorial-08-mysql-login-system-concept/comment-page-1/#comment-265 PHP Tutorials By Kloplop321 » Blog Archive » PHP & MySQL Tutorial 12: Logging into a Basic Blog Sun, 04 Jul 2010 04:17:56 +0000 http://kloplop321.com/php-tutorials/?p=190#comment-265 [...] future tools for the blog administration that will be shown in future tutorials. You may refer to Tutorial 8(Login Concept) as we go though this [...] [...] future tools for the blog administration that will be shown in future tutorials. You may refer to Tutorial 8(Login Concept) as we go though this [...]

]]> Comment on PHP & MySQL Tutorial 10: Starting a Basic Blog by PHP Tutorials By Kloplop321 » Blog Archive » PHP & MySQL Tutorial 11: Extending a Basic Blog http://kloplop321.com/php-tutorials/index.php/2010/06/26/php-mysql-tutorial-10-starting-a-basic-blog/comment-page-1/#comment-261 PHP Tutorials By Kloplop321 » Blog Archive » PHP & MySQL Tutorial 11: Extending a Basic Blog Tue, 29 Jun 2010 20:30:39 +0000 http://kloplop321.com/php-tutorials/?p=256#comment-261 [...] tutorial 10 to have a link to a single-post page. First of all, I am basing this tutorial on the last tutorial(10), which established a basic blog. Here we are going to compound the original statement that looks [...] [...] tutorial 10 to have a link to a single-post page. First of all, I am basing this tutorial on the last tutorial(10), which established a basic blog. Here we are going to compound the original statement that looks [...]

]]> Comment on MySQL and PHPMyAdmin Introduction with PHP 07: A basic Guestbook by Kloplop321 http://kloplop321.com/php-tutorials/index.php/2010/02/15/mysql-and-phpmyadmin-introduction-with-php-07-a-basic-guestbook/comment-page-1/#comment-258 Kloplop321 Wed, 23 Jun 2010 01:48:42 +0000 http://kloplop321.com/php-tutorials/?p=183#comment-258 are you sure you have guestbook database fully working? That should only happen if you don't have the MySQL working properly. Can you give my a mysql dump of your guestbook database? are you sure you have guestbook database fully working? That should only happen if you don’t have the MySQL working properly. Can you give my a mysql dump of your guestbook database?

]]> Comment on MySQL and PHPMyAdmin Introduction with PHP 07: A basic Guestbook by lito http://kloplop321.com/php-tutorials/index.php/2010/02/15/mysql-and-phpmyadmin-introduction-with-php-07-a-basic-guestbook/comment-page-1/#comment-257 lito Wed, 23 Jun 2010 00:36:12 +0000 http://kloplop321.com/php-tutorials/?p=183#comment-257 what am i doing wrong? i copy and change only the connection but when i tried it like your way, it doesn't show the message and name when i hit submit button. what am i doing wrong? i copy and change only the connection but when i tried it like your way, it doesn’t show the message and name when i hit submit button.

]]> Comment on MySQL and PHPMyAdmin Introduction with PHP 07: A basic Guestbook by Kloplop321 http://kloplop321.com/php-tutorials/index.php/2010/02/15/mysql-and-phpmyadmin-introduction-with-php-07-a-basic-guestbook/comment-page-1/#comment-256 Kloplop321 Sun, 13 Jun 2010 14:44:04 +0000 http://kloplop321.com/php-tutorials/?p=183#comment-256 Yes, I have not quit, I just have been very busy. In fact I plan to release some more very soon. I also ventured into being a flash dev, but I found some things limiting. However, I have made a flash-based login system(even with a captcha) that interacts with PHP a long long time ago. Yes, I have not quit, I just have been very busy. In fact I plan to release some more very soon. I also ventured into being a flash dev, but I found some things limiting. However, I have made a flash-based login system(even with a captcha) that interacts with PHP a long long time ago.

]]> Comment on MySQL and PHPMyAdmin Introduction with PHP 07: A basic Guestbook by karol http://kloplop321.com/php-tutorials/index.php/2010/02/15/mysql-and-phpmyadmin-introduction-with-php-07-a-basic-guestbook/comment-page-1/#comment-255 karol Fri, 11 Jun 2010 18:11:25 +0000 http://kloplop321.com/php-tutorials/?p=183#comment-255 nice one i check it too, btw when are u going to insert another tutorials Kloplop321? I am more flash dev.... nice one i check it too, btw when are u going to insert another tutorials Kloplop321? I am more flash dev….

]]> Comment on PHP & MySQL Tutorial 09: File Upload system with records in MySQL by karol http://kloplop321.com/php-tutorials/index.php/2010/04/05/php-mysql-tutorial-09-file-upload-system-with-records-in-mysql/comment-page-1/#comment-254 karol Tue, 08 Jun 2010 07:40:52 +0000 http://kloplop321.com/php-tutorials/?p=201#comment-254 nice one, it works i had been looking for File Upload system with records in MySQL for ages. Good work Kloplop nice one, it works i had been looking for File Upload system with records in MySQL for ages. Good work Kloplop

]]> Comment on PHP & MySQL Tutorial 08: Mysql Login system concept by Sivaeb http://kloplop321.com/php-tutorials/index.php/2010/03/12/php-mysql-tutorial-08-mysql-login-system-concept/comment-page-1/#comment-253 Sivaeb Thu, 03 Jun 2010 15:46:03 +0000 http://kloplop321.com/php-tutorials/?p=190#comment-253 Yes it clear it up thanks Yes it clear it up thanks

]]> Comment on PHP & MySQL Tutorial 08: Mysql Login system concept by Kloplop321 http://kloplop321.com/php-tutorials/index.php/2010/03/12/php-mysql-tutorial-08-mysql-login-system-concept/comment-page-1/#comment-252 Kloplop321 Thu, 03 Jun 2010 15:30:50 +0000 http://kloplop321.com/php-tutorials/?p=190#comment-252 This usually happens when you have a variable in the SESSION that doesn't exist right now So like $_SESSION['username'], the username variable obviously will not be available when the user is not logged in. So, in order to address this issue, you do if(isset($_SESSION['username'])){ //do code here } this checks to see if the variable exists(is set) then you are safe to access it. This is only a notice, so it doesn't matter much in the long run. The reason why you are seeing notices is because in your php.ini (php settings file) the error reporting is most likely set to E_ALL, you can change it to E_ERROR and just have a filter so you don't see the notices. I have the error reporting so it doesn't show these notices. As you can see by my tutorial, I am only seeing if the session variable, isin, is set to 1. if($_SESSION['isin'] == 1){ Now, if the variable does not exist(undefined index, meaning isin doesn't exist), then it will return false for that variable. The computer now sees it as if(false == 1) logically false is 0, and 0 is not 1, so it does not execute the code that should happen when 'isin' is set to true or 1. Does that help your understanding? This usually happens when you have a variable in the SESSION that doesn’t exist right now
So like $_SESSION['username'], the username variable obviously will not be available when the user is not logged in. So, in order to address this issue,
you do
if(isset($_SESSION['username'])){
//do code here
}
this checks to see if the variable exists(is set) then you are safe to access it. This is only a notice, so it doesn’t matter much in the long run.
The reason why you are seeing notices is because in your php.ini (php settings file) the error reporting is most likely set to E_ALL, you can change it to E_ERROR and just have a filter so you don’t see the notices. I have the error reporting so it doesn’t show these notices.

As you can see by my tutorial, I am only seeing if the session variable, isin, is set to 1.
if($_SESSION['isin'] == 1){
Now, if the variable does not exist(undefined index, meaning isin doesn’t exist), then it will return false for that variable.
The computer now sees it as
if(false == 1)
logically false is 0, and 0 is not 1, so it does not execute the code that should happen when ‘isin’ is set to true or 1.

Does that help your understanding?

]]> Comment on PHP & MySQL Tutorial 08: Mysql Login system concept by Sivaeb http://kloplop321.com/php-tutorials/index.php/2010/03/12/php-mysql-tutorial-08-mysql-login-system-concept/comment-page-1/#comment-251 Sivaeb Thu, 03 Jun 2010 14:51:17 +0000 http://kloplop321.com/php-tutorials/?p=190#comment-251 It seems to be when I log out or are not logged in. It seems to be when I log out or are not logged in.

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