<?php

function GetMD5($pStr) {
    $data = mb_convert_encoding($pStr, 'UTF-16LE', 'UTF-8');
    $h = md5($data, true);
    return strtoupper($h);
}

$inputStringInUnicode = mb_convert_encoding("Test провод", "UTF-16LE", "UTF8");

print GetMD5($inputStringInUnicode)
?>