note 105986 added to function.is-nan
| From: | j dot gaudin at osu1 dot php dot net | Date: | Fri, 30 Sep 2011 10:06:46 +0000 |
| Subject: | note 105986 added to function.is-nan | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-183537@lists.php.net to get a copy of this message | ||
PHP version 5.2
Doc said : "Returns TRUE if val is 'not a number', else FALSE."
That's not true
exemple :
<?php
$foo= 1;
$bar = '2';
$more = 'shqsdfklhsdfo';
$moreFoo = true;
$moreBar = false;
var_dump(is_nan($foo)); //return bool(false)
var_dump(is_nan($bar)); // return bool(false)
var_dump(is_nan($more)); //return NULL (not TRUE)
var_dump(is_nan($moreFoo )); //return bool(false)
var_dump(is_nan($moreBar )); // return bool(false)
?>
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Server IP: 89.31.146.176
Probable Submitter: 193.253.206.241
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Manual Page -- http://www.php.net/manual/en/function.is-nan.php
Edit -- https://master.php.net/note/edit/105986
Del: integrated -- https://master.php.net/note/delete/105986/integrated
Del: useless -- https://master.php.net/note/delete/105986/useless
Del: bad code -- https://master.php.net/note/delete/105986/bad+code
Del: spam -- https://master.php.net/note/delete/105986/spam
Del: non-english -- https://master.php.net/note/delete/105986/non-english
Del: in docs -- https://master.php.net/note/delete/105986/in+docs
Del: other reasons-- https://master.php.net/note/delete/105986
Reject -- https://master.php.net/note/reject/105986
Search -- https://master.php.net/manage/user-notes.php