3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $str = "cao isso pala só temp que pala vai temp aparecer temp aqui cao"; $match=array(); preg_match_all('#\b(la|cao|temp)\b#', $str, $match ); $return = array_unique( $match[0] ); print_r($return);
Output for 4.3.0 - 7.1.10
Array ( [0] => cao [1] => temp )