- var_dump: documentation ( source)
- preg_match: documentation ( source)
<?php
preg_match('~(waa)|(meukee)|(trololo)|(abcabc)~i', 'meukee', $matches);
var_dump($matches);
preg_match('~(waa)|(meukee)|(trololo)|(abcabc)~i', 'trololo', $matches);
var_dump($matches);
preg_match('~(waa)|(meukee)|(trololo)|(abcabc)~i', 'waa', $matches);
var_dump($matches);