Reply to thread

Message: <blockquote data-quote="NSA" data-source="post: 214682" data-attributes="member: 10034">Hello, So basically I'm trying to identify users other than using their IP addresses, so I wanted to give them random strings which would each be unique. With this in mind, I need to figure a way of re-generating a string each time the same one already exists in the database... something like in the diagram below: <img src="http://s16.postimg.org/8xf9gc8hh/logic.png" alt="" class="fr-fic fr-dii fr-draggable " style="" /> So basically I got up to the part where I check if the string exists in the database then I return true if it does and false if it does not, so I need to loop until said variable returns false. How can I do this?</blockquote>