<?php
class AES {
    function __construct($options) {
        if (isset($options)) {
            $this->options = $options;
        } else {
            throw new Exception('Unable to set AES Options');
        }
    }
    public function encrypt() {
        if (isset($this->options['encryption_key'])) {
            if (isset($this->options['data_to_encrypt']) && !empty($this->options['data_to_encrypt'])) {
                return trim(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $this->options['encryption_key'], $this->options['data_to_encrypt'], MCRYPT_MODE_ECB, mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB), MCRYPT_RAND)));
            } else {
                throw new Exception('No data to be encrypted specified.');
            }
        } else {
            throw new Exception('No encryption key specified.');
        }
    }

    public function decrypt() {
        if (isset($this->options['encryption_key'])) {
            if (isset($this->options['data_to_decrypt']) && !empty($this->options['data_to_decrypt'])) {
                return trim(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $this->options['encryption_key'], base64_decode($this->options['data_to_decrypt']), MCRYPT_MODE_ECB, mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB), MCRYPT_RAND)));
            } else {
                throw new Exception('No data to be decrypted specified.');
            }
        } else {
            throw new Exception('No encryption key specified.');
        }
    }
}
?>