The whole set of is_* functions are useful, like is_numeric() and
is_string() and such.
Regular expressions are also mega-useful if you want data to be in a very
specific format, like email addresses and such.
isset() is also a good function to call at the beginning of your validation
function or script just to make sure that if a variable is needed on a
page, it's been set properly on the form.
J
Kurth Bemis wrote:
> i want to do form validation server side...not client side......
>
> i'm wondering what programers use to validate form data.....if
> loops....arrays? what?
>
> ~kurth
>
>
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