php two way encrypt decrypt

1function encrypt_decrypt($string, $action = 'encrypt')
2{
3    $encrypt_method = "AES-256-CBC";
4    $secret_key = 'AA74CDCC2BBRT935136HH7B63C27'; // user define private key
5    $secret_iv = '5fgf5HJ5g27'; // user define secret key
6    $key = hash('sha256', $secret_key);
7    $iv = substr(hash('sha256', $secret_iv), 0, 16); // sha256 is hash_hmac_algo
8    if ($action == 'encrypt') {
9        $output = openssl_encrypt($string, $encrypt_method, $key, 0, $iv);
10        $output = base64_encode($output);
11    } else if ($action == 'decrypt') {
12        $output = openssl_decrypt(base64_decode($string), $encrypt_method, $key, 0, $iv);
13    }
14    return $output;
15}
16 
17echo "Your Encrypted password is = ". $pwd = encrypt_decrypt('spaceo', 'encrypt');
18echo "Your Decrypted password is = ". encrypt_decrypt($pwd, 'decrypt');
19

1function encryptor($action, $string) {
2	$output = FALSE;
3	$encrypt_method = "AES-256-CBC";
4	$secret_key = 'SecretKeyWord';
5	$secret_iv  = 'SecretIV@123GKrQp';
6	// hash
7	$key = hash('sha256', $secret_key);
8	// iv - encrypt method AES-256-CBC expects 16 bytes - else you will get a warning
9	$iv = substr(hash('sha256', $secret_iv), 0, 16);
10	//do the encryption given text/string/number
11	if ($action == 'encrypt') {
12		$output = openssl_encrypt($string, $encrypt_method, $key, 0, $iv);
13		$output = base64_encode($output);
14	} elseif ($action == 'decrypt') {
15		//decrypt the given text/string/number
16		$output = openssl_decrypt(base64_decode($string), $encrypt_method, $key, 0, $iv);
17	}
18	return $output;
19}
20
21function encrypt($data) {
22	return urlencode(self::encryptor('encrypt', self::sanitize($data)));
23}
24
25function decrypt($data) {
26	return self::encryptor('decrypt', urldecode(self::sanitize($data)));
27}
28// Now you can just call encrypt($string) or decrypt($string)
29?>

1$decoded = base64_decode($encoded);
2