Encryption Class

class Encryption {
	var $skey 	= "encKey2016";
	
	public  function safe_b64encode($string) {
		$data = base64_encode($string);
		$data = str_replace(array('+','/','='),array('-','_',''),$data);
		return $data;
	}

	public function safe_b64decode($string) {
		$data = str_replace(array('-','_'),array('+','/'),$string);
		$mod4 = strlen($data) % 4;
		if ($mod4) {
			$data .= substr('====', $mod4);
		}
		return base64_decode($data);
	}
	
	public  function encode($value){ 
		if(!$value){return false;}
		$text = $value;
		$iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
		$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
		$crypttext = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $this->skey, $text, MCRYPT_MODE_ECB, $iv);
		return trim($this->safe_b64encode($crypttext)); 
	}
	
	public function decode($value){
		if(!$value){return false;}
		$crypttext = $this->safe_b64decode($value); 
		$iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
		$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
		$decrypttext = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $this->skey, $crypttext, MCRYPT_MODE_ECB, $iv);
		return trim($decrypttext);
	}
}

Kullanım Şekli:

include('encryption.php');

$encryption = new Encryption();

$text = "some_fancy_keywords";
$encode = $encryption->encode($param);
$decode = $encryption->decode($encode);