Question

I have sets of 5, 6 and 7 digit numbers. I need them to be displayed in the 000/000/000 format. So for example:

12345 would be displayed as 000/012/345

and

9876543 would be displayed as 009/876/543

I know how to do this in a messy way, involving a series of if/else statements, and strlen functions, but there has to be a cleaner way involving regex that Im not seeing.

Answer 1

sprintf and modulo is one option

function formatMyNumber($num) {     return sprintf('%03d/%03d/%03d',                    $num / 1000000,                   ($num / 1000) % 1000,                    $num % 1000); }