PHP MCRYPT AES CBC PKCS padding 5, interchangeable with Java Crypto

aes-cbc-pkcs5.php

<?php

function aes_cbc_encrypt($data, $key) 
{
    $size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);
    $iv = mcrypt_create_iv($size, MCRYPT_DEV_RANDOM);
    $key = hash('SHA256', $key, true);
    $strIn = pkcs5_pad($data);
    $strCrypt = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $strIn, MCRYPT_MODE_CBC, $iv);
    return base64_encode($iv.$strCrypt);
}

function aes_cbc_decrypt($data, $key) 
{
    $size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);
    $strIn = base64_decode($data);
    $key = hash('SHA256', $key, true);
    $iv = substr($strIn, 0, $size);
    $strIn = substr($strIn, $size);
    return pkcs5_unpad(mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $key, $strIn, MCRYPT_MODE_CBC, $iv));
}

function pkcs5_pad($text) 
{
    $size = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);
    $pad = $size - (strlen($text) % $size);
    return $text . str_repeat(chr($pad), $pad);
}

function pkcs5_unpad($text) 
{
    $pad = ord($text{strlen($text) - 1});
    if ($pad > strlen($text)) return false;
    if (strspn($text, $text{strlen($text) - 1}, strlen($text) - $pad) != $pad) 
    {
        return false;
    }
    return substr($text, 0, -1 * $pad);
}