admin/environment/php
From MoodleDocs
Moodle has different PHP requirements for different versions:
- Moodle 2.0 will require PHP 5.2.8 or later.
- Moodle 1.6 to 1.9 requires PHP 4.3.0 or later
- Moodle 1.0 to 1.5 requires PHP 4.1.0 or later
Note: You are currently viewing documentation for Moodle 2.0. Up-to-date documentation for the latest stable version is available here: admin/environment/php.
Moodle has different PHP requirements for different versions: