note 104425 added to types.comparisons
| From: | avp200681 at gmail dot com | Date: | Tue, 14 Jun 2011 21:20:36 +0000 |
| Subject: | note 104425 added to types.comparisons | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-180534@lists.php.net to get a copy of this message | ||
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!
----
Server IP: 69.147.83.197
Probable Submitter: 80.239.242.95 (proxied: 46.202.3.49)
----
Manual Page -- http://www.php.net/manual/en/types.comparisons.php
Edit -- https://master.php.net/note/edit/104425
Del: integrated -- https://master.php.net/note/delete/104425/integrated
Del: useless -- https://master.php.net/note/delete/104425/useless
Del: bad code -- https://master.php.net/note/delete/104425/bad+code
Del: spam -- https://master.php.net/note/delete/104425/spam
Del: non-english -- https://master.php.net/note/delete/104425/non-english
Del: in docs -- https://master.php.net/note/delete/104425/in+docs
Del: other reasons-- https://master.php.net/note/delete/104425
Reject -- https://master.php.net/note/reject/104425
Search -- https://master.php.net/manage/user-notes.php