note 22218 deleted from function.is-nan by yohgaki
| From: | yohgaki@php.net | Date: | Tue, 17 Sep 2002 12:34:44 +0000 |
| Subject: | note 22218 deleted from function.is-nan by yohgaki | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-36833@lists.php.net to get a copy of this message | ||
See is_numeric if you have an older version of PHP than 4.20. It should serve your purpose well
(negate the output).
If you're using PHP 3, you can use a regular expression:
function isNaN( $var ) {
return !ereg ("^[0-9\.]+$", $var);
}