Re: Re: combine empty and trim

From:	Tim	Date:	Mon, 26 Mar 2007 16:10:36 +0000
Subject:	Re: Re: combine empty and trim
References:	1 2 3	Groups:	php.general
Request:	Send a blank email to php-general+get-251381@lists.php.net to get a copy of this message

Richard Davey schrieb:

Tim wrote:
Ross schrieb:
I want to trim any whitepace and check if it is empty in the same line this is not working. if (empty(trim($_POST['_createcategory']))) {
Hi, try this: if (isset($_POST['_createcategory'])) { $value = trim($_POST['_createcategory']); if (empty($value)) {
Be very careful with empty(). It doesn't do exactly what it says on the tin. For example if your _createcategory POST value contained a zero, the empty() check will fail in the above instance, giving a false result. Cheers, Rich You're right.

This function is a good workaround: //taken from http://php.net/empty //24-Mar-2007 02:32 function is_empty($var) { return (((is_null($var) || rtrim($var) == '') && $var !== false) || (is_array($var) && empty($var))); } Best regards Tim