add 0 before number in php code example

Example 1: add zeros in front of number php

<?php
$num = 4;
$num_padded = sprintf("%02d", $num);
echo $num_padded; // returns 04
?>

Example 2: php add 0 before number

$number = 4;
str_pad($number, 2, '0', STR_PAD_LEFT); // returns 04

$number = 14;
str_pad($number, 2, '0', STR_PAD_LEFT); // returns 14