note 104425 rejected from types.comparisons by danbrown
| From: | danbrown@php.net | Date: | Wed, 15 Jun 2011 16:50:12 +0000 |
| Subject: | note 104425 rejected from types.comparisons by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-180558@lists.php.net to get a copy of this message | ||
Note Submitter: avp200681 at gmail dot com
----
This note about NAN - "Any loose or strict comparisons of this value against any other value,
including itself, will have a result of FALSE" - should be corrected.
Tested with PHP Version 5.3.1 on Windows:
<?php
echo 'NAN==true:';var_dump(NAN==true);echo '<br />';
echo 'NAN==false:';var_dump(NAN==false);echo '<br />';
echo 'NAN==1:';var_dump(NAN==1);echo '<br />';
echo 'NAN==0:';var_dump(NAN==0);echo '<br />';
echo 'NAN==-1:';var_dump(NAN==-1);echo '<br />';
echo "NAN=='1':";var_dump(NAN=='1');echo '<br />';
echo "NAN=='0':";var_dump(NAN=='0');echo '<br />';
echo "NAN=='-1':";var_dump(NAN=='-1');echo '<br />';
echo 'NAN==null:';var_dump(NAN==NULL);echo '<br />';
echo 'NAN==array():';var_dump(NAN==array());echo '<br />';
echo "NAN=='php':";var_dump(NAN=='php');echo '<br />';
echo "NAN=='':";var_dump(NAN=='');echo '<br />';
echo 'NAN==NAN:';var_dump(NAN==NAN);echo '<br />';
?>
Only (NAN==true) and (NAN==array()) returned false!