Online PHP editor | refs for D2FdP

<?php function remove_index_etc($url) { $url = preg_replace('/^(.*)(?:\/(?:home|default|index)\..{3,4})([\?\/#\*]+.*)?$/i', "$1$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*"). 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/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/*"). 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;