Sprintf Php Calculation Code Example

Example 1: php sprintf

There are already some comments on using sprintf to force leading leading zeros but the examples only include integers. I needed leading zeros on floating point numbers and was surprised that it didn't work as expected.  Example: <?php sprintf('%02d', 1); ?>  This will result in 01. However, trying the same for a float with precision doesn't work:  <?php sprintf('%02.2f', 1); ?>  Yields 1.00.   This threw me a little off. To get the desired result, one needs to add the precision (2) and the length of the decimal seperator "." (1). So the correct pattern would be  <?php sprintf('%05.2f', 1); ?>  Output: 01.00  Please see http://stackoverflow.com/a/28739819/413531 for a more detailed explanation.

Example 2: php sprintf

<?php $num = 5; $location = 'tree';  $format = 'There are %d monkeys in the %s'; echo sprintf($format, $num, $location);