// Exit early if running an incompatible PHP version to avoid fatal errors.
// The minimum version is specified explicitly, as DRUPAL_MINIMUM_PHP is not
// yet available. It is defined in bootstrap.inc, but it is not possible to
// load that file yet as it would cause a fatal error on older versions of PHP.
if(version_compare(PHP_VERSION,'5.3.2')<0){
print'Your PHP installation is too old. Drupal requires at least PHP 5.3.2. See the <a href="http://drupal.org/requirements">system requirements</a> page for more information.';
exit;
}
/**
* Global flag indicating that update.php is being run.
*
* When this flag is set, various operations do not take place, such as invoking
* hook_init() and hook_exit(), css/js preprocessing, and translation.
*
* This constant is defined using define() instead of const so that PHP
* versions older than 5.3 can display the proper PHP requirements instead of