Random 8 numbers string...

[xyn]

Heyy Guys,
I have my little random number string, I can't seem to work-out
how to make it generate a random 8 number code. sometimes it
is 1 number or others it is 2 numbers :/.

[code=php:0]$numbers = array('1','2','3','4','5','6','7','8','9');
for ($i=8; $i<10; $i++)
{
$Keyarray[$i] = $numbers[rand(0,count($numbers))];
}
shuffle($Keyarray);
$Newkey = implode("",$Keyarray);

echo "EUM$Newkey";
exit;[/code]

[tomfmason]

here is a function that you can use. It will return a random number that is eight digits long.

[code=php:0]
function random_number() {
  $salt = "0123456789";
  srand((double)microtime()*1000000); 
      $i = 0;
      while ($i <= 8) {
            $num = rand() % 33;
            $tmp = substr($salt, $num, 1);
            $num = $num . $tmp;
            $i++;
      }
      return $num;
} [/code]

Now you can use this function like this.

[code=php:0]
$random_number = random_number();
echo "$random_number";
[/code]

[xyn]

that only outputs double figures :/ I need 8.

[sasa]

$lenght_of_key = 8;
$key='EUM';
for ($i=0; $i<$lenght_of_key; $i++) $key .=rand(1,9);
echo $key;

[poirot]

An easier way:
[code=php:0]$num = sprintf("%08d", rand(0,99999999));[/code]

[kenrbnsn]

What's wrong with:
[code]<?php
$key = rand(10000000,99999999);
echo $key;
?>[/code]

Ken
(poirot beat me to it by 9 seconds .. GMTA :) )

[xyn]

thanks guys :]