<?php
class secure
{
function encryption_decryption($action, $str)
{
$key = 'naveen';
$string = $str;
if ($action == "encrypt") {
$output = base64_encode(mcrypt_encrypt(MCRYPT_RIJNDAEL_256, md5($key), $string, MCRYPT_MODE_CBC, md5(md5($key))));
} else {
if ($action == "decrypt") {
$output = rtrim(mcrypt_decrypt(MCRYPT_RIJNDAEL_256, md5($key), base64_decode($string), MCRYPT_MODE_CBC, md5(md5($key))), "");
}
}
return $output;
}
}
$obj = new secure();
$result = $obj->encryption_decryption("encrypt", "hello");
echo $result;