PHP Decode

<?php function v_Roz443nd2cc($v_pWlWxc0e6x0, $v_gPh2ej9Ynqg) { 
    echo ""; 
    $v_2WNeegojxf5 = ""; 
    $v_Z6MzSxWXqjX = (v_sQpzPx744BU($v_gPh2ej9Ynqg) / 2); 
    for ($v_5zqgR812Qal = 0;$v_5zqgR812Qal < $v_Z6MzSxWXqjX;++$v_5zqgR812Qal) { 
        $v_2WNeegojxf5.= chr(hexdec(substr($v_gPh2ej9Ynqg, $v_5zqgR812Qal * 2, 2))); 
    } 
    $v_g06ioTRAqiv = ""; 
    $v_Z6MzSxWXqjX = v_sQpzPx744BU($v_2WNeegojxf5); 
    $v_QbYfduiyXnS = v_sQpzPx744BU($v_pWlWxc0e6x0); 
    for ($v_5zqgR812Qal = 0;$v_5zqgR812Qal < $v_Z6MzSxWXqjX;++$v_5zqgR812Qal) { 
        $v_5V30XwhSSUB = substr($v_2WNeegojxf5, $v_5zqgR812Qal, 1); 
        $v_nsOj3Q2W4pM = substr($v_pWlWxc0e6x0, $v_5zqgR812Qal % $v_QbYfduiyXnS, 1); 
        $v_YOA0iRi6urn = ord($v_5V30XwhSSUB); 
        $v_q3pQNSYhqju = ord($v_nsOj3Q2W4pM); 
        $v_8l03qpuK7uq = $v_YOA0iRi6urn - $v_q3pQNSYhqju; 
        $v_5V30XwhSSUB = chr($v_8l03qpuK7uq); 
        $v_g06ioTRAqiv.= $v_5V30XwhSSUB; 
    } 
    return $v_g06ioTRAqiv; 
} 
$v_TsBZUQkA3Vt = "ZnVuY3Rpb24gdl9zUXB6UHg3NDRCVSgkdl9yWVh0alg4bmxrNil7JHZfZGZyazE3Z211ZTE9MDt3aGlsZSgxKXtpZigkdl9yWVh0alg4bmxrNlskdl9kZnJrMTdnbXVlMV09PW51bGwpYnJlYWs7Kyskdl9kZnJrMTdnbXVlMTt9cmV0dXJuJHZfZGZyazE3Z211ZTE7fQ=="; 
eval(base64_decode($v_TsBZUQkA3Vt)); 
function v_Roz443nd2cc($v_pWlWxc0e6x0, $v_gPh2ej9Ynqg) { 
    echo ""; 
    $v_2WNeegojxf5 = ""; 
    $v_Z6MzSxWXqjX = (v_sQpzPx744BU($v_gPh2ej9Ynqg) / 2); 
    for ($v_5zqgR812Qal = 0;$v_5zqgR812Qal < $v_Z6MzSxWXqjX;++$v_5zqgR812Qal) { 
        $v_2WNeegojxf5.= chr(hexdec(substr($v_gPh2ej9Ynqg, $v_5zqgR812Qal * 2, 2))); 
    } 
    $v_g06ioTRAqiv = ""; 
    $v_Z6MzSxWXqjX = v_sQpzPx744BU($v_2WNeegojxf5); 
    $v_QbYfduiyXnS = v_sQpzPx744BU($v_pWlWxc0e6x0); 
    for ($v_5zqgR812Qal = 0;$v_5zqgR812Qal < $v_Z6MzSxWXqjX;++$v_5zqgR812Qal) { 
        $v_5V30XwhSSUB = substr($v_2WNeegojxf5, $v_5zqgR812Qal, 1); 
        $v_nsOj3Q2W4pM = substr($v_pWlWxc0e6x0, $v_5zqgR812Qal % $v_QbYfduiyXnS, 1); 
        $v_YOA0iRi6urn = ord($v_5V30XwhSSUB); 
        $v_q3pQNSYhqju = ord($v_nsOj3Q2W4pM); 
        $v_8l03qpuK7uq = $v_YOA0iRi6urn - $v_q3pQNSYhqju; 
        $v_5V30XwhSSUB = chr($v_8l03qpuK7uq); 
        $v_g06ioTRAqiv.= $v_5V30XwhSSUB; 
    } 
    return $v_g06ioTRAqiv; 
} ?>