note 98048 added to function.max

From: Date: Sun, 23 May 2010 06:29:33 +0000
Subject: note 98048 added to function.max
Groups: php.notes 
Request: Send a blank email to php-notes+get-169526@lists.php.net to get a copy of this message
max() on undefined parameters does not assume the value is zero, it ignores it. <?php $dimensions = array('left' => -2); // If $dimensions['right'] was never set, // we may expect it to be treated as zero, but print max($dimensions['left'], $dimensions['right']); // // Returns -2, not zero <?php print max(0+$dimensions['left'], 0+$dimensions['right']); ?> would be a work-around, but it's probably tidier to ensure your values are set correctly first. (on PHP 5.2.11 anyway) ---- Server IP: 202.89.58.1 Probable Submitter: 121.74.105.72 ---- Manual Page -- http://www.php.net/manual/en/function.max.php Edit -- https://master.php.net/note/edit/98048 Del: integrated -- https://master.php.net/note/delete/98048/integrated Del: useless -- https://master.php.net/note/delete/98048/useless Del: bad code -- https://master.php.net/note/delete/98048/bad+code Del: spam -- https://master.php.net/note/delete/98048/spam Del: non-english -- https://master.php.net/note/delete/98048/non-english Del: in docs -- https://master.php.net/note/delete/98048/in+docs Del: other reasons-- https://master.php.net/note/delete/98048 Reject -- https://master.php.net/note/reject/98048 Search -- https://master.php.net/manage/user-notes.php

« previous php.notes (#169526) next »