Editing the lib.php file is one possible work around for resolving an issue with a Moodle installation completed through Fantastico in cPanel. Once the installation is complete and an administrator logs into Moodle, a blank white screen appears instead of the expected administration error. This error, caused by a PHP version mismatch can be resolved through either editing the lib.php file or manually installing an older version of Moodle that doesn’t require PHP 5.3.
Before making changes, making a full backup is highly recommended.
Fortunately, editing the lib.php file can easily be done through the cPanel File Manager and we’ll walk you through it:
- Log into cPanel.
- Click on “File Manager” and navigate to the question/engine subfolder inside your Moodle installation (i.e. public_html/question/engine, /public_html/moodle/question/engine or something similar depending on where you installed Moodle).
- Select the lib.php, right click it and choose “Code Editor” to open the file for editing.
- Find the following lines of code:
- Replace:
- The function should now look like this:
- Click the Save Changes button in the upper right of the window.
public static function get_behaviour_required_behaviours($behaviour) {
$class = ‘qbehaviour_’ . $behaviour;
return $class::get_required_behaviours();
}
return $class::get_required_behaviours();
With:
eval(‘$ret = ‘ . $class . ‘::get_required_behaviours();’);
return $ret;
public static function get_behaviour_required_behaviours($behaviour) {
$class = ‘qbehaviour_’ . $behaviour;
eval(‘$ret = ‘ . $class . ‘::get_required_behaviours();’);
return $ret;
}
Now, when we go back to our site where Moodle is installed we can log in and see the Moodle administration area.