note 49959 added to function.is-bool
| From: | punkpuke at comcast dot net | Date: | Sun, 13 Feb 2005 19:41:46 +0000 |
| Subject: | note 49959 added to function.is-bool | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-84936@lists.php.net to get a copy of this message | ||
I think it's good to point out that is_bool() is the exact opposite of empty() and that
is_bool() will return false if the variable it is checking is one of the following...
$x = "";
$x = null;
var $x; (not set)
$x = array();
$x = false;
$x = "0";
$x = (int) 0;
Empty returns true for all of those. It's useful instead of typing !empty() and worrying.
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Manual Page -- http://www.php.net/manual/en/function.is-bool.php
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