[thelist] PH isset and is_empty
fstorr
fffrancis at fstorr.demon.co.uk
Thu Jul 3 12:30:03 CDT 2003
Hi all
I'm trying to do some basic PHP form validatation. I'm passing a
variable through the the form processing page and picking it up fine
using $HTTP_POST_VARS. However, I'm having problems checking to see if
the user has entered nothing (I know that I can just do if (!$var) but I
want to explore further).
Looking at the manual, it seems the following should work:
If (isset($var))
But if I type in nothing, it still returns true, which I don't
understand at all. Surely if there is nothing there, the variable
doesn't exist. I've also experiemented with is_null (always returns
false). The only thing that seems to work is is_empty.
Argh!
Regards
F
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