2 way encryption

[AN-net]

anyone know of any 2 way encryption methods? i want the data to be secure but i want it to be readable...

i know the security flaws in 2 way encryption but for my purposes i need to be able to encrypt something and then decrypt it;)

[Brad]

<a href="http://us2.php.net/manual/en/ref.mcrypt.php" target="_blank">http://us2.php.net/manual/en/ref.mcrypt.php</a>

This will probbly work, depending on what kind of host you want to do this on.