从第2项开始，每12项添加php代码

Question

I have some loop. How can i optimize this code that it would be executed each 12 items starting from 2nd item. I'm using hardcoded code for each of +12 item, but of course this is not a good solution :) I know it's easy to do and i was trying to do it with modulus operator, however it worked somehow incorrectly.

<?php if( ($counter == 2) || ($counter == 14) || ($counter == 26) || ($counter == 38) || ($counter == 50) || ($counter == 62) || ($counter == 74) || ($counter == 86) || ($counter == 98 .... ?>

Thanks for help!

Answer 1

Answer

Take a look at the Modulus operator (%):

<?php
    if ( ( $counter - 2 ) % 12 == 0 ) {
        //....
    }
?>

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Explanation

The Modulus operator ($a % $b) is the remainder of $a divided by $b.

• $counter - 2 - as you're starting with an offset of 2, remove that from $counter
• % 12 - will return the remainder of $counter - 2 divided by 12
• == 0 - if the above returns 0, you know that it is exactly divisible