note 86615 modified in function.isset by felipe
| From: | felipe@php.net | Date: | Mon, 27 Oct 2008 11:51:52 +0000 |
| Subject: | note 86615 modified in function.isset by felipe | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-145799@lists.php.net to get a copy of this message | ||
Here's a simple function to test if the variable is set:
<?php
function is($var)
{
if (!isset($var)) return false;
if ($var!==false) return true;
return false;
}
?>
Now instead of very popular (but invalid in many situations):
if (!$var) $var=5;
you can write:
if (!is($var)) $var=5;
--was--
Here's a simple function to test if the variable is set:
function is($var)
{
if (!isset($var)) return false;
if ($var!==false) return true;
return false;
}
Now instead of very popular (but invalid in many situations):
if (!$var) $var=5;
you can write:
if (!is($var)) $var=5;
http://php.net/manual/en/function.isset.php