Math problem

I'm trying to compare $pastthedate to multiples of 26 - for example 0, 26, 52, etc.. and I have achieved this with the code below:

<?php

if ($pastthedate % 26 == 0 || $pastthedate == 0){ ?>

DISPLAY MY CONTENT

<?php } ; ?>

Now I also want to display other content if $pastthedate equals multiples of of 26 starting at 1 - for example 1, 27, 53, etc..

and then so on, multiples of of 26 starting at 2 (2, 28, 54, etc..)

and then so on, multiples of of 26 starting at 3 (3, 29, 55, etc..)

"" starting at 4(4, 30, 56, etc..)

"" starting at 5(4, 30, 56, etc..)

all the way up to starting at 25

Any help would be greatly appreciated!

You're already doing modular division, but you don't seem to know what it's for:

if ($pastthedate % 26 == 0 ){ ?>

This says "divide the variable by 26, and if the remainder is zero..."  Change the zero to a 1 and you get the exact situation you asked about.