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Can PHP do math instantly, three fields, F1 value= 22, F2 user enters unit, F3 = F1 x F2 on F2entry

Aug 22nd, 2002 14:38
Dennis Voss, Guest,

Simple answer: No
Longer Version:
PHP is server-based software, so the user must submit F1 and F2 and the
server can send the result back.
What you're looking for can be solved with JavaScript.