PHP DB - Re: [PHP-DB] Prevention for multiple submissions from the same form

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Re: [PHP-DB] Prevention for multiple submissions from the same form

OKi98

2007-10-05, 7:58 am

T K napsal(a):
> I've learned that this is possible to make and send a unique id in
> hidden input, and check if the id is used before database query is
> issued. (PHP Cookbook [O'reilly]).
Why? You should always ensure that only unique data are inserted into
database. This is not just about multiple submissions. Visitor can
submit form then forgets about that so he goes back and submits the same
thing again.

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