Online PHP editor | refs for WncSd

<?php // your code goes here $ip = "40.83.109.202"; $start = microtime(true); $ipchk = !!preg_match("/^(([1-9]?[0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5]).){3}([1-9]?[0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])$/", $ip); $end = microtime(true); $start2 = microtime(true); $ipchk2 = !!filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4); $end2 = microtime(true); echo "preg_match:\n"; echo var_export($ipchk, true) . "\n"; echo ($end - $start) * 1000; echo "\n"; echo "filter_var:\n"; echo var_export($ipchk2, true) . "\n"; echo ($end2 - $start2) * 1000;