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

preferences:
38.84 ms | 402 KiB | 5 Q