note 63846 deleted from function.mt-rand by bjori
| From: | bjori@php.net | Date: | Sun, 02 Apr 2006 02:18:02 +0000 |
| Subject: | note 63846 deleted from function.mt-rand by bjori | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-107145@lists.php.net to get a copy of this message | ||
Note Submitter: me
Reason: useless
----
I've written a script to test mt_rand().
<?
$min=0;
$max=5;
$count=10000;
for($i=0;$i<$count;$i++){
$numbers[mt_rand($min,$max)]++;
}
ksort($numbers);
$av=$count/($max-$min+1);
foreach($numbers as $number=>$value){
$div=($value/$av-1)*100;
echo "$number Difference from average: $div%<br>";
}
echo "<pre>";
print_r($numbers);
echo "</pre>";
?>
The Output:
0 Difference from average: 6.68%
1 Difference from average: -0.64%
2 Difference from average: 2.6%
3 Difference from average: -3.58%
4 Difference from average: -3.16%
5 Difference from average: -1.9%
Array
(
[0] => 1778
[1] => 1656
[2] => 1710
[3] => 1607
[4] => 1614
[5] => 1635
)