stream_socket_client tests for palin and ssl resources

mailtest.php

<?php

error_reporting(E_ALL);
ini_set("display_errors",1 );

$socket_context = stream_context_create([]);
$timeout = 30;
$errno = 0;
$errstr = '';

//PLAIN
$host1 = 'mail.staff.mekit.it';
$port1 = 25;

//SSL
$host2 = 'ssl://' . $host1;
$port2 = 993;


echo "<hr/><h1>HOST1 - $host1</h1>";
$conn1 = stream_socket_client(
    $host1 . ":" . $port1,
    $errno,
    $errstr,
    $timeout,
    STREAM_CLIENT_CONNECT,
    $socket_context
);
echo is_resource($conn1) ? "CONN-OK" : "CONN-NOPE! ";


echo "<hr/><h1>HOST2 - $host2</h1>";
$conn2 = stream_socket_client(
    $host2 . ":" . $port2,
    $errno,
    $errstr,
    $timeout,
    STREAM_CLIENT_CONNECT,
    $socket_context
);
echo is_resource($conn2) ? "CONN-OK" : "CONN-NOPE! ";