convert to 3 digit

[nikko50]

How can I convert a number to a three digit like below. Is there a built in function?? For example 1 should be 001 and 11 should be 011 and 111 should stay 111.

[laserlight]

You can use [man]sprintf/man.

[ShawnK]

Here's a function I always use for this if i'm not using mysql. $fNum is the number you want to fill with zeros, and $fDigits is the total number of digits you want.

function zerofill($fNum, $fDigits)
{
   $fOutput = str_pad($fNum, $fDigits, "0", STR_PAD_LEFT);
   return $fOutput;
}

So

echo zerofill(14, 3);

would output 014