note 98048 added to function.max
| From: | dan at coders dot co dot nz | 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)
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Server IP: 202.89.58.1
Probable Submitter: 121.74.105.72
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Manual Page -- http://www.php.net/manual/en/function.max.php
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