--- On Wed, 9/17/08, David Halliday <[EMAIL PROTECTED]> wrote: > I am looking for a php function or script to encode a > string and decode it (when required). Your help would be > greatly appreciated. > > have thought of "md5" but the resulting string > cant be decoded again! > crc32 and sha1 functions are not good either. > > The function crypt () is also a One-way string encryption > .. so that would not work as well. > What I need it for is simply to encode (encrypt) a > user's email - which now appears on the web page as is - > and when someone clicks a link to contact that user, the > script would decode it back to the proper email string. > Hence the sender would not actually know the email address. > > There are ways to do it via mysql database but I thought if > a I could do the crypting (and then decoding) via pure php > script, it would ne less of a lod on the mysql db. > Any suggestions would be greatly appreciated. It is a bit > urgent. > > Best regards David
You are probably looking for something like http://php.net/mcrypt_encrypt http://php.net/mcrypt_decrypt James
