General

Many Drupal programmers, Drupal site admins and Drupal site users have encountered errors similar to "Warning: "Headers already sent" in their Drupal site. If you are facing the same situation in your Drupal site then read on to find out the solution.

Many Drupal programmers, Drupal site admins and Drupal site users have encountered errors similar to "Warning: Cannot modify header information - headers already sent by (output started at ...\domainname.com\includes\install.inc:236) in ...\domainname.com\includes\install.inc on line 618" in their Drupal site. If you are facing the same situation in your Drupal site then read on to find out the solution.

Many Drupal programmers, Drupal site admins and Drupal site users have encountered errors similar to "Warning: fopen(./sites/default/settings.php) [function.fopen]" in their Drupal site. If you are facing the same situation in your Drupal site then read on to find out the solution.

Many Drupal programmers, Drupal site admins and Drupal site users have encountered errors similar to "User warning: Illegal mix of collations (PDOException: SQLSTATE[HY000]: General error: 1267)" in their Drupal site. If you are facing the same situation in your Drupal site then read on to find out more.

Many Drupal programmers, Drupal site admins and Drupal site users have encountered errors similar to "PDOException: SQLSTATE[HY000]: General error: 1364 Field 'users' doesn't have a default value: INSERT INTO {node} (vid, type, language, title, uid, status, created, changed, promote, sticky) VALUES ..." in their Drupal site. If you are facing the same situation in your Drupal site then read on to find out the solution.

Many Drupal programmers, Drupal site admins and Drupal site users have encountered errors similar to "The selected file /tmp/file*** could not be uploaded, because the destination ***/***.*** is not properly configured." in their Drupal site. If you are facing the same situation in your Drupal site then read on to find out more.

There is a good chance that most Drupal websites are linked to social networking sites like Twitter and Facebook. In such a scenario we need to verify that the content generated in the Drupal website and passed as feeds to these sites are correctly displayed there. If you are facing the same scenario in your Drupal website and want to know how to test your Drupal website's content feed in social networking sites like Twitter and Facebook then read on

'Completely Automated Public Turing Test to tell computers and humans apart' or simply 'CAPTCHA' is something that we come across in the Log in / contact form of almost every modern website. As the name suggests, it is used to differentiate between humans and computers. It is a test which usually comes in the form of mathematical questions (Number Captcha) or image recognition (Image Captcha) for the users to solve, in order to login and access certain pages in the websites. 'ReCaptcha' is also a type of captcha which contains an image with 2 words.

In one of the Drupal projects I worked on I happened to notice a Javascript error message " ReferenceError: CKEditor is not defined " which caused a number of issues in the normal working of CKEditor. If you are facing the same error message when using CKEditor in your Drupal site and want to know how to fix then read on.

We may face a situation in our Drupal site utilizing Ubercart where we need to change the product shippable property during the checkout process. If a product can be shipped freely to certain locations we need to set the Shippable property to false programmatically in the Ubercart checkout process. Read on to know how to change a products shippable property during the Ubercart checkout process.

Many Drupal programmers, Drupal site admins and Drupal site users have encountered the "Notice: Undefined variable" error message in their Drupal site. If you are facing the same situation in your Drupal site then read on to find out more.

Many Drupal programmers, Drupal site admins and Drupal site users have encountered 403, 404, 406, 500 or "Page not found" errors when submitting content with specific phrases. If you are facing the same situation in your Drupal site then read on to find out more.

Many Drupal programmers, Drupal site admins and Drupal site users have encountered the error message - "MySQL: "Warning: MySQL server has gone away" on their Drupal site. If you are facing the same situation in your Drupal site then read on to know the fix.

Many Drupal programmers and Drupal site admins have encountered a situation where two functions have the same name. If you are facing the same situation in your Drupal site then read on to know the fix.

Many Drupal users have encountered a situation where a module and a theme have the same name in their Drupal site. If you are facing the same situation in your Drupal site then read on to know the fix.

Many Drupal users have encountered a "Fatal error: Allowed memory size of X bytes exhausted (tried to allocate Y bytes)..." error message in their Drupal site. If you are faced with an error of a similar type in your Drupal site then read on to find out more about the issue.

Many Drupal users have encountered a message similar to Fatal error: Cannot redeclare getnodecount() (previously declared in /var/www/sites/site.org/htdocs/includes/common.inc(1685) : eval()'d code:3) in /var/www/sites/site.org/htdocs/includes/common.inc(1685) : eval()'d code on line 9" If you are faced with an error of similar type then read on to find out more about the issue.