How can one ensure that the GD library is properly integrated in PHP?

To ensure that the GD library is properly integrated in PHP, you need to make sure that the GD extension is installed and enabled in your PHP configuration. You can check this by running `phpinfo()` and looking for the GD section. If it's not enabled, you can enable it by editing your php.ini file and adding or uncommenting the line `extension=gd`.

<?php
// Check if GD extension is enabled
if (!extension_loaded('gd')) {
    echo 'GD extension is not enabled';
} else {
    echo 'GD extension is enabled';
}
?>