Pad to the right side of the string, to a new length of 20 characters in PHP

Description

The following code shows how to pad to the right side of the string, to a new length of 20 characters.

Example

  /*from   w w  w .  j ava2s .c  o  m*/
<?php
    $str = "Hello World";
    echo str_pad($str,20,".");
?>

The code above generates the following result.