note 86281 deleted from function.rand by danbrown
| From: | danbrown@php.net | Date: | Wed, 05 Nov 2008 15:34:07 +0000 |
| Subject: | note 86281 deleted from function.rand by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-146166@lists.php.net to get a copy of this message | ||
Note Submitter: shortschoolbus at live dot com
----
A function to generate numbers of any length which contain no identical digits side-by-side. i.e.
112233
<?php
function randomNumber($number_of_digits=null){
$number_of_digits = ( $number_of_digits == null ) ? 1 : $number_of_digits;
for($x=0;$x<$number_of_digits;$x++){
while(substr($new_number,strlen($new_number)-1,strlen($new_number)) == $r) $r =
rand(0,9);
$num .= $r;
}
return $new_number;
}
echo randomNumber(9);
// Output: 875438104
echo randomNumber();
// Output: 8
?>