Online PHP editor | output for GfItc

<?php function remove_index_etc($url) { echo preg_match('/[\?#]/',$url); if (substr($url, -1) == "*" && preg_match('/[\?#]/',$url)) { $url = preg_replace('/^(.*)(?:\/(?:home|default|index)\..{3,4})([\/\*]+)?$/i', "$1(?:$|((?:\/(?:home|default|index)\..{3,4})|\/?[\?#]+.*))$2", $url); } else { $url = preg_replace('/^(.*)(?:\/(?:home|default|index)\..{3,4})([\?\/#]+.*)*$/i', "$1(?:$|((?:\/(?:home|default|index)\..{3,4})|\/?[\?#]))$2", $url); } return $url; } echo remove_index_etc("http://a.com/index.html") . PHP_EOL; echo remove_index_etc("http://a.com/index.html*"). PHP_EOL; echo remove_index_etc("http://a.com/index.html?a=1"). PHP_EOL; echo remove_index_etc("http://a.com/*"). PHP_EOL; echo remove_index_etc("http://a.com/index.html?a=1*"). PHP_EOL; echo remove_index_etc("http://a.com/index.html#a=1*"). PHP_EOL; echo remove_index_etc("http://a.com#index.html?a=1"). PHP_EOL; echo remove_index_etc("http://a.com#index.html?a=1*"). PHP_EOL;