Description:
------------
---
From manual page: https://php.net/function.socket-sendto
---

Documentation states: "Sends a message to a socket, whether it is connected or not"

In practice PHP returns a 'broken pipe' error if the socket is not connected.

See description at stack overflow : https://stackoverflow.com/questions/41624814/php-socket-sendto-cannot-connect-to-any-host

Test script:
---------------
<?php
    $sock = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);

    $msg = "Ping !";
    $len = strlen($msg);

    socket_connect($sock, '127.0.0.1', 1223); // this line missing from documentation

    socket_sendto($sock, $msg, $len, 0, '127.0.0.1', 1223);
    socket_close($sock);
?>