XXTEA is a fast and secure encryption algorithm. This is a XXTEA library for PHP.
It is different from the original XXTEA encryption algorithm. It encrypts and decrypts string instead of uint32 array, and the key is also string.
Download the xxtea.php, and put it in your develepment directory.
<?php
require_once("xxtea.php");
$str = "Hello World! 你好，中国！";
$key = "1234567890";
$encrypt_data = xxtea_encrypt($str, $key);
$decrypt_data = xxtea_decrypt($encrypt_data, $key);
if ($str == $decrypt_data) {
echo "success!";
} else {
echo "fail!";
}
?>