note 65863 added to language.operators.comparison

From: Date: Tue, 09 May 2006 05:49:59 +0000
Subject: note 65863 added to language.operators.comparison
Groups: php.notes 
Request: Send a blank email to php-notes+get-110928@lists.php.net to get a copy of this message
Note: according to the spec, PHP's comparison operators are not transitive. For example, the following are all true in PHP5: "11" < "a" < 2 < "11" As a result, the outcome of sorting an array depends on the order the elements appear in the pre-sort array. The following code will dump out two arrays with *different* orderings: <?php $a = array(2, "a", "11", 2); $b = array(2, "11", "a", 2); sort($a); var_dump($a); sort($b); var_dump($b); ?> This is not a bug report -- given the spec on this documentation page, what PHP does is "correct". But that may not be what was intended... ---- Server IP: 66.163.161.117 Probable Submitter: 66.159.230.136 ---- X-Spam-Status: No, hits=3.1 required=5.0 tests=DATE_MISSING,FROM_NO_LOWER autolearn=no version=2.64 ---- Manual Page -- http://www.php.net/manual/en/language.operators.comparison.php Edit -- http://master.php.net/note/edit/65863 Del: integrated -- http://master.php.net/note/delete/65863/integrated Del: useless -- http://master.php.net/note/delete/65863/useless Del: bad code -- http://master.php.net/note/delete/65863/bad+code Del: spam -- http://master.php.net/note/delete/65863/spam Del: non-english -- http://master.php.net/note/delete/65863/non-english Del: in docs -- http://master.php.net/note/delete/65863/in+docs Del: other reasons-- http://master.php.net/note/delete/65863 Reject -- http://master.php.net/note/reject/65863 Search -- http://master.php.net/manage/user-notes.php

« previous php.notes (#110928) next »