Re: combine empty and trim
| From: | Robert Cummings | Date: | Mon, 26 Mar 2007 15:49:07 +0000 |
| Subject: | Re: combine empty and trim | ||
| References: | 1 2 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-251379@lists.php.net to get a copy of this message | ||
On Mon, 2007-03-26 at 16:23 +0100, Stut wrote:
> Ross wrote:
> > I want to trim any whitepace and check if it is empty in the same line this
> > is not working.
> >
> > if (empty(trim($_POST['_createcategory']))) {
>
> You can't do this because empty needs the variable - it can't work on
> teh return value. The closest you can get would be...
>
> if (isset($_POST['_createcategory']) and
> strlen(trim($_POST['_createcategory'])) > 0) {
>
> Not as neat, but it does the job.
>
> You could also do something like this...
>
> $_POST['_createcategory'] =
> isset($_POST['_createcategory']) ?
> trim($_POST['_createcategory']) : '';
>
> if (empty($_POST['_createcategory'])) {
>
> Still not pretty but slightly better in that you can cleanse your data
> before you hit logic.
<?php
if( !isset( $_POST['_createcategory'] )
||
empty( ($_POST['_createcategory'] =
trim( $_POST['_createcategory'] )) )
{
// Stuff to do.
}
?>
Cheers,
Rob.
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