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run code in 300+ PHP versions simultaneously
<?php function isOnline($ip, $port, $timeout = 1) { return (($fp = fsockopen($ip, $port, $i, $j, $timeout)) ? fclose($fp) : false); } isOnline('127.0.0.1', 80);
Output for git.master, git.master_jit, rfc.property-hooks
Warning: fsockopen(): Unable to connect to 127.0.0.1:80 (Unknown error) in /in/Hcu76 on line 3

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