How to keep leading zeros in PHP integer [duplicate]

Answer 1

Pass it as a string; The zeros will be maintained.

Answer 2

use str_pad

str_pad($var, $numZeroesToAppend, '0', STR_PAD_LEFT)

Answer 3

You cannot keep leading zeros in integer. You can either keep them in a string or add at output time, using sprintf(), str_pad(), etc.