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run code in 150+ php & hhvm versions
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<?php if (strnatcmp(phpversion(),'5.4.7') >= 0) { $address="127.0.0.1"; $port=9877; echo "I am here"; set_time_limit (0); if(false==($socket= socket_create(AF_INET,SOCK_STREAM, SOL_TCP))) { echo "could not create socket"; } socket_bind($socket, $address, $port) or die ("could not bind socket"); socket_listen($socket); if(($client=socket_accept($socket))) echo "client is here"; sleep(60); socket_close($socket); } ?>
Output for 5.2.12 - 5.4.6