note 55173 added to ref.math
| From: | crescentfreshpot at yahoo dot com | Date: | Wed, 27 Jul 2005 02:50:06 +0000 |
| Subject: | note 55173 added to ref.math | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-92521@lists.php.net to get a copy of this message | ||
Median:
number median ( number arg1, number arg2 [, number ...] )
number median ( array numbers )
<?php
function median()
{
$args = func_get_args();
switch(func_num_args())
{
case 0:
trigger_error('median() requires at least one parameter',E_USER_WARNING);
return false;
break;
case 1:
$args = array_pop($args);
// fallthrough
default:
if(!is_array($args)) {
trigger_error('median() requires a list of numbers to operate on or an array of
numbers',E_USER_NOTICE);
return false;
}
sort($args);
$n = count($args);
$h = intval($n / 2);
if($n % 2 == 0) {
$median = ($args[$h] + $args[$h-1]) / 2;
} else {
$median = $args[$h];
}
break;
}
return $median;
}
?>
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