How do I work out the remainder of a division?

Sometimes you will want to work out the remainder of a division sum, for instance when you divide 7 by 5, the remainder is 2.

There are various mathematical reasons you might want to know the remainder, and it's also useful to know for instance in a grid where you want to know the x,y co-ordinates of a particular cell.

To find the remainder of a division, called the modulus, simply use the percentage symbol - % - like this:


<?php

$value = 7;

echo $value % 5;

?>

This will print '2' to the screen.

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How do I work out the remainder of a division?

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