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Im working on a sort of "friend request" script for a front end user profile. the user template has the following extra fields of the type Page friend_invite_in friend_invite_out friend_confirmed There will be a ajax post containing the username when pressing a button to send a friend request. Lets say user "A" does a request for user "B" to become friends. The ajax script should handle the post and add the foloowing page references: User "A" will receive a page reference to user "B" in the friend_invite_out field. User "B" will receive a page reference to user "A" in the friend_invite_in field. Then user "B" can confirm, so that the page references are moved in the following manner: User "A" page reference to user "B" will be moved from friend_invite_out field to friend_confirmed field User "B" page reference to user "A" will be moved from friend_invite_in field to friend_confirmed field This i kinda the logic behind the whole process. But to prevent sending clear usernames i would like to have a md5 hash in my HTML/jQuery code. This is no problem to do with PHP. But how would i make a selector that can handle this md5 hash and get the right user? // this does not work! $md5 = $this->input->post->userid; $u = $this->users->get("MD5(name)=$md5"); In MySQL it the query would be something like this (havent tested it) SELECT * FROM users WHERE MD5(name)=$md5
