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Answers and rating deltas for

How do I stop a PHP form from adding blank info to the MYSQL database when page is refreshed?

Author Votes Δ
Mr. Smith 3 +0.34
rogeriopvl 3 +2.69
tliff 1 -2.75
DanTdr 1 -2.68
Matteo Riva 1 0.00
Strae 0 0.00
Last visited: Sep 14, 2014, 5:07:29 AM