Every 3rd Iteration of PHP Loop

Question

When I say 'Every 3rd Iteration' I mean 'Every 3rd Iteration... starting from number 4'

If it were just every 3rd, I would target the appropriate iterations like so:

<?php if ($count % 3 == 0) : ?>

Bear in mind I've set $count to 1 beforehand

But the iterations need to start with the 4th, then 7th, 10th etc.

Does anyone know how I can acheive this? Can I do it with a simple if statement like the one above?

Unfortunately I don't think a for loop will be possible as this is a WordPress loop I'm dealing with

<?php $offset=1; if (( $count - $offset) % 3 == 0) : ?>

chiliNUT
– chiliNUT

2014-05-18 18:16:11 +00:00
Commented May 18, 2014 at 18:16 — chiliNUT
– chiliNUT, Commented May 18, 2014 at 18:16
<?php if ($count % 3 == 0 && $count != 3) : ?>

Eeji
– Eeji

2014-05-18 18:18:16 +00:00
Commented May 18, 2014 at 18:18 — Eeji
– Eeji, Commented May 18, 2014 at 18:18

Noah Heck · Accepted Answer · 2014-05-18 18:19:20Z

4

Your thoughts about using the modulus operator are sound, you just need to expand the scope of your logic surrounding it:

You want every third iteration after the initial 4 have passed. Begin your logic after the first 4:

if ($count > 4)

Then, you want each 3 after that. Your counter includes the initial 4 iterations you didn't want to include, so remove that from your counter and check if the current iteration is a multiple of 3:

if (($count - 4) % 3 === 0)

This should give you what you're looking for.

if ($count > 4)
{
    if (($count - 4) % 3 === 0)
    {
        ...
    }
}

You can also put this into one line:

if ($count > 4 && ($count - 4) % 3 === 0)
{
    ...
}

answered May 18, 2014 at 18:19

Noah Heck

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3 Comments

user1049944 Over a year ago

thanks! Never would have been able to think of that myself haha. I've got the following inside my WP Loop but it doesn't seem to be working properly unfortunately <?php if ($count > 4 && ($count - 4) % 3 === 0) : ?><h1>Break</h1><?php endif; ?>

user1049944 Over a year ago

You can see it here, the heading 'Break' should appear after the first 3 boxes but instead it appears after the first 6? bit.ly/SrEl4h

user1049944 Over a year ago

...actually never mind, I've just realised it's much easier to achieve it with jQuery instead! Thanks for the help anyway

Lewis · Accepted Answer · 2014-05-18 18:18:07Z

2

foreach($array as $key=>$value){
    if($key % 3 != 0){
        continue;
    }
}

answered May 18, 2014 at 18:18

Lewis

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