CryptoJS AES decrypt on PHP

CryptoJS_AES_decrypt.php

<?php

/**
 * author: alexeyprudnikov
 **/

class JsAes {
	public static function Decrypt($base64string, $secretkey) {
		$base64string = str_replace('_', '+', $base64string);
		$data = base64_decode($base64string);
		$salt = substr($data, 8, 8);
		$main = substr($data, 16);
		$rounds = 3;
		$sksalt = $secretkey . $salt;
		$md5_hash = array();
		$md5_hash[0] = md5($sksalt, true);
		$result = $md5_hash[0];
		for ($i = 1; $i < $rounds; $i++) {
			$md5_hash[$i] = md5($md5_hash[$i - 1] . $sksalt, true);
			$result .= $md5_hash[$i];
		}
		$key = substr($result, 0, 32);
		$iv = substr($result, 32, 16);

		$decrypted = openssl_decrypt($main, 'aes-256-cbc', $key, OPENSSL_RAW_DATA, $iv);

		return $decrypted;
	}
}

echo JsAes::Decrypt("U2FsdGVkX18h3ECon7UNCJFga2JpEO7KANqqvul+C7A=", "myPassword");

?>