PHP Calculation with 0 in front of variable value

Question

How to allow PHP calculation 0 appears if example :

$a = "00001";
$b = "00005";

$total = $a + $b;

Expected result is : 00006

Including and keep 0000 appears.

I tried but the result always : 6

See here : http://stackoverflow.com/questions/1699958/formatting-a-number-with-leading-zeros-in-php — FreudianSlip, Apr 23 '14 at 13:29

score 7 · Accepted Answer · answered Apr 23 '14 at 13:27

7

Just do normal math and then add the zeros back in front at the end:

$a = "00001";
$b = "00005";

$total = $a + $b;
$total = sprintf("%05d", $total );

or

$total = str_pad($total , 5, "0", STR_PAD_LEFT);

answered Apr 23 '14 at 13:27

John Conde

score 3 · Answer 2 · answered Apr 23 '14 at 13:28

3

You might want to try and prepend the needed 0's

<?php
$total = 6;
$total_padded = sprintf("%05s", $num);
echo $num_padded; // returns 00006
?>

I haven't tested it but it should work :)

answered Apr 23 '14 at 13:28

Rubensito · Answer 3 · 2014-06-20T13:21:10.707

1

  <?
   str_pad($num, 5 , '0', STR_PAD_LEFT);
  ?>

edited Jun 20 '14 at 13:21

answered Apr 23 '14 at 13:27

Rubensito

score 1 · Answer 4 · answered Apr 23 '14 at 13:28

1

 <?php
   str_pad($total, 5, '0', STR_PAD_LEFT);
  ?>

answered Apr 23 '14 at 13:28

SagarPPanchal

score 1 · Answer 5 · answered Apr 23 '14 at 13:32

1

I assume that the value is integer so you should use intval. If it is float use floatval

$a = "00001";
$b = "00005";

print intval($a);
print intval($b);
print intval($a)+intval($b);

than add the leading zeros

answered Apr 23 '14 at 13:32

melanholly

5 Answers5