[SOLVED] Email confirmation link

[bobvaz]

Newbie - I am looking for a tutorial explaining how to create a return email confirmation link.  Program is reading a database of names and sending an email to each saying they have been selected to participate in an event.  I would like to add a return link in the email that when clicked will update the database that they will participate.

If anyone knows where a tutorial or explanation of how do this is located, would appreciate the assistance.

Thanks.

Bob

[dbo]

Lots of ways to do it. One way would be to create a random number (unique identifier) that you attach to their username (in a database). In the email you send you pass in the unique id in the query string. When the user clicks it it looks up the identifier to make sure its valid. If so it updates the database to say "Yo, homie. I'm participating."

[bobvaz]

Great!  Thanks dbo.....I will try a google search on creating unique identifiers.

 

[Daniel0]

mt_rand, uniqid, or pick a random character from an array of characters until you think your string is long enough.

[bobvaz]

thanks all