admin/environment/custom check/php check php533
From MoodleDocs
For Moodle 2.0, PHP must be 5.2.8 or later (it was released 08-Dec-2008). However PHP 5.3.3 or later is recommended.
Note: You are currently viewing documentation for Moodle 2.2. Up-to-date documentation for the latest stable version is available here: admin/environment/custom check/php check php533.
For Moodle 2.0, PHP must be 5.2.8 or later (it was released 08-Dec-2008). However PHP 5.3.3 or later is recommended.