pad a number

[poe]

i just cant seem to remember how to pad a number

ie make '3' into '03'

or

make '22' into '00022'

[doni49]

$i = 3;
$i = "0" . $i;

$k = 22;
$k = "000" . $k;

[kenrbnsn]

Use the [url=http://www.php.net/sprintf]sprintf()[/url] function.

[code]<?php
for($i=0;$i<10;$i++)
  echo sprintf("%05d",rand(1,1000)).'<br>';
?>[/code]

The above code will print ten random numbers between 1 and 1000 padded to 5 characters with zeros.

Ken