$re = '/ENUM(.*?)ENDENUM/s';
$str = 'ENUM CMF_QUOTE_EVENT
CMF_QUOTE_EVENT_Activate "Activate"
CMF_QUOTE_EVENT_Suspend "Suspend"
CMF_QUOTE_EVENT_Delete "Delete"
ENDENUM';
preg_match_all($re, $str, $matches, PREG_SET_ORDER, 0);
// Print the entire match result
var_dump($matches);
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for PHP, please visit: http://php.net/manual/en/ref.pcre.php