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PHP Troubleshooting

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Unable to load dynamic library ...\php_gd2.dll

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Symptom:

The following message is generated when a PHP file (or one containing PHP) is viewed:

Title: Warning
Message: Unknown(): Unable to load dynamic library 'C:\Program Files\php-4.3.4.win-32\php_gd2.dll' - The specified module could not be found.

The actual directory given might vary, notably the version of php may be different.

Cause:

PHP is looking in the wrong directory for the php_gd2.dll extension library.

In this specific case PHP is looking for the extension library in the PHP installation directory. However the extensions are installed in a folder called "extensions".

Remedy:

Edit the php.ini file. Find the definition for "extension_dir". It may be something like:

extension_dir = "C:\Program Files\php-4.3.4-win32"

If it is missing "\extensions" at the end then add it:

extension_dir = "C:\Program Files\php-4.3.4-win32\extensions"

Be aware that the specific PHP installation directory may vary between systems and that the example shown here assumes version 4.3.4.

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These notes are believed to be correct for PHP 4.3 running on Windows Server 2003 and may apply to other versions as well.