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Apr 21, 2009, 06:20 #1
- Join Date
- Dec 2008
- Plymouth, United Kingdon
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Enter the numbers below to prevent spam
I have seen many site asking users/ visitors to enter a certain type of numbers before submitting a form to prevent spam attackers.
How does it work actually? Does it really effective? Or is there any other better solutions to avoid spam attacks?
I am trying to look for tutorial or code to write this part for my blog but still can't find any resources yet...
Please let me know if u have any ideas.