Skorpios
msg:4557114 | 3:00 pm on Mar 21, 2013 (gmt 0) |
Maybe just put another layer which is a simple sum, i.e. generate tqo random numbers between 1 and 9 and have the user enter the simple addition?
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Gilead
msg:4557152 | 4:49 pm on Mar 21, 2013 (gmt 0) |
Thanks for the idea Skorpios, but that wouldn't stop a person from submitting the form every 7 seconds.
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topr8
msg:4557166 | 5:35 pm on Mar 21, 2013 (gmt 0) |
set a cookie on the form page,
when the form is submitted, set the cookie value to sent or somesuch - reject all subsiquent form submissions where the cookie value is already 'sent'
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topr8
msg:4557171 | 5:51 pm on Mar 21, 2013 (gmt 0) |
... or record the ip address when a form is submitted, don't allow that ip address to submit the form again for whatever time period you chose.
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Gilead
msg:4557185 | 6:32 pm on Mar 21, 2013 (gmt 0) |
Thanks topr8! I like the second idea better.
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