padding in php zero leading code example
Example 1: php pad leading zeros
str_pad($value, 8, '0', STR_PAD_LEFT);
Example 2: php number padding
<?php
$input = "Alien";
echo str_pad($input, 10); // produces "Alien "
echo str_pad($input, 10, "-=", STR_PAD_LEFT); // produces "-=-=-Alien"
echo str_pad($input, 10, "_", STR_PAD_BOTH); // produces "__Alien___"
echo str_pad($input, 6, "___"); // produces "Alien_"
echo str_pad($input, 3, "*"); // produces "Alien"
?>