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Thread: Text in images?
11-03-2004, 07:08 PM #1
- Join Date
- Mar 2004
- Thanked 1 Time in 1 Post
Text in images?
Hi all, ive never really looked into it but was wondering if someone could give a brief explanation as to how certain images come to generate random numebrs/chars for confirmation numbers ect to stop bots signing up.
would also like to know how you would check against it.
11-03-2004, 07:43 PM #2
It's done by a server side script, often PHP with GD support, read the PHP Manual for more info...