Re: url variable defined?
| From: | Matthew Leingang | Date: | Tue, 08 Aug 2000 14:32:39 +0000 |
| Subject: | Re: url variable defined? | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-10669@lists.php.net to get a copy of this message | ||
The function you are looking for is called isset:
<?php if (!isset($var))
$var = 1;
?>
See
http://www.php.net/manual/function.isset.php
--Matt
----------------------------------------------------------------
Matthew Leingang 617/495-2171
Harvard University leingang@math.harvard.edu
Department of Mathematics "This signature needs no quote."
On Tue, 8 Aug 2000 venome@gmx.net wrote:
> how can i tell if a variable was defined in the url, like this:
>
> http://blah.com?var=value
>
> or not? if not, i want it to have a default value, like this
>
> <? if ($var not defined) {
> $var = 1
> } ?>
>
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