php format a number so that it has leading zero [duplicate]

Question

I want to format my array vars to that numbers under ten have leading zeros, so:

$myArray=array(1,2,3,10,11,100);

So that it is:

$myArray=array(01,02,03,10,11,100);

Is there an easy function for this?

Thanks in advance.

Answer 1

In php, a leading zero means the number is a octal number.

You should just format it at the output time like:

$myArray=array(1,2,3,10,11,100);
foreach ($myArray as $var) {
  echo sprintf("%02d\n", $var);
}