Versions de PHP requises pour drupal

Cf https://www.drupal.org/requirements Last updated March 18, 2015.

• Drupal 6: PHP 5.x only (5.2.5 or higher recommended). Warning: support for PHP 4.x has been dropped. Drupal core should work with PHP 5.3.x, but PHP 5.3.x and higher may produce errors or unexpected behavior especially for contributed modules and themes.
• Drupal 7: PHP 5.2.5 or higher (5.4 or higher recommended).
• Drupal 8: PHP 5.4.5 or higher

iXe ovh necessite PHP 5.2.17

Voir https://www.drupal.org/requirements/php

En passant, vers mes notes  conf .htaccess