How to check for PHP GD Library
You can also use custom php code to check for PHP GD support. For this we will be using function_exists and extension_loaded functions. Here is the code. Save this file as gdinfo.php and run it on server.
<?php
if (extension_loaded('gd') && function_exists('gd_info')) {
echo 'PHP GD library is enabled in your system.';
}
else {
echo 'PHP GD library is not enabled on your system.';
}
?>