Re: isset
| From: | Jim Lucas | Date: | Mon, 16 Apr 2007 16:46:20 +0000 |
| Subject: | Re: isset | ||
| References: | 1 2 3 4 5 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-253023@lists.php.net to get a copy of this message | ||
Robert Cummings wrote:
On Mon, 2007-04-16 at 09:27 -0700, Jim Lucas wrote:-- Enjoy, Jim Lucas Different eyes see different things. Different hearts beat on different strings. But there are times for you and me when all such things agree. - RushStut wrote:Stut wouldn't do that... especially not after calling isset() a waste of cycles. using the @ to suppress warnings/errors still invokes the error system, and that includes any error handler you've custom hooked. Maybe Stut just writes bad code ;) ;) Cheers, Rob. I wouldn't say bad code, but I might say exceptionally noisy code :PJim Lucas wrote:well, as the OP said, he wants to know when the variable has a value other the "". So, to check for that you have to do something like this right? if ( $var != '' ) {} if ( strlen($var) > 0 ) {} if ( !empty($var) ) {} ... a number of other ideas come to mind, but none of them will work, because they will always product a E_NOTICE warning. You COULD always use empty() prefixed with an @ to quiet the E_NOTICE,Richard Kurth wrote:The isset is a pointless waste of cycles. -StutWhat do you do when isset does not work? If I send data in a $_REQUEST['var'] like if (isset($_REQUEST['var'])) { } Put var has no data it still says it is set. Because $_REQUEST['var'] = "" and isset thinks "" is setI use this combination a lot: if ( isset($_GET['something']) && !empty($_GET['something']) ) {// do something here with $_GET['something']}