note 104425 added to types.comparisons

From: 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

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