append 0's onto the start of a number variable

[Navajo]

$fifthAmount = ($secondAmount + $thirdAmount);

echo "$fifthAmount";

 

This prints to the screen:

 

1020

 

but I want:

 

000000000001020

 

So its 15 numbers in length.

 

How do I append 0's to the front of a number?

[thebadbad]

You can use str_pad():

 

<?php
$fifthAmount = ($secondAmount + $thirdAmount);
echo str_pad($fifthAmount, 15, '0', STR_PAD_LEFT);
?>

[Navajo]

Cheers, that's done it.

 

I'm only very very new to php, where would a novice like me look for something like that bit of code?

[thebadbad]

You can start with Google, if you don't know the name of the function you're about to use, and then look the function up in the manual (use the search function) for directions and examples.