3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (strnatcmp(phpversion(),'5.4.7') >= 0) { $address="127.0.0.1"; $port=9884; echo "I am here"; set_time_limit (20); echo "1"; if(false==($socket= socket_create(AF_INET,SOCK_STREAM, SOL_TCP))) { echo "2"; echo "could not create socket"; } echo "3"; socket_bind($socket, $address, $port) or die ("could not bind socket"); echo "4"; socket_listen($socket); echo "5"; if(($client=socket_accept($socket))) { echo "6"; echo "client is here"; } echo "7"; sleep(60); echo "8"; socket_close($socket); echo "9"; } ?>

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28.34 ms | 402 KiB | 5 Q