Re: Help with silly silly problem....
| From: | jeremy brand | Date: | Fri, 05 Jan 2001 19:57:50 +0000 |
| Subject: | Re: Help with silly silly problem.... | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-32927@lists.php.net to get a copy of this message | ||
>
> if (($form_var_1) && ($form_val_2) && ($form_val_3)) {
> echo "You set them all";
> }
if ($anything)
tests to see if it is a non-zero number, as in C.
I think what you want to do is see if anything is in these variables
-- like a string, or a number or something.
This is what I do:
if (strlen($form1) && strlen($form2) && strlen($form3))
// then do something
I use strlen because it doesn't complain when a veriable is not set,
and simply returns 0, otherwise, if it is set and it is a string, it
returns grater than zero (or TRUE) and if what I pass in is a number,
then the PHP auto type conversion kicks in, changes it to a string,
and then also returns greater than zero (or TRUE).
Hope this helps.
Jeremy
Jeremy Brand :: Sr. Software Engineer :: 408-245-9058 :: jeremy@nirvani.net
http://www.JeremyBrand.com/Jeremy/Brand/Jeremy_Brand.html
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