PHP loop add div around items between a count

Question

I'm using the following working code to wrap every 3 elements in a div:

$count = 1

foreach( $names as $name ):

  if ($count%3 == 1) {
    echo '<div class="wrap">';
  }

  echo $name;

  if ($count%3 == 0) {
    echo '</div>';
  }

  $count++;

endforeach;

if ($count%3 != 1) echo "</div>";

That returns:

<div class="wrap">
  name
  name
  name
</div>
<div class="wrap">
  name
  name
  name
</div>
<div class="wrap">
  name
  name
  name
</div>
<div class="wrap">
  name
  name
  name
</div>

So far so good.. but i want the second wrapped set to have 4 "name" elements like so:

<div class="wrap">
  name
  name
  name
</div>
<div class="wrap">
  name
  name
  name
  name
</div>
<div class="wrap">
  name
  name
  name
</div>
<div class="wrap">
  name
  name
  name
</div>

Every 3 items should be wrapped in the div, except the second set which will have 4 items.

Or another way to explain: items 4 to 8 will be wrapped in a div while every other 3 items will be wrapped in div.

How can this be achieved?

Barmar · Accepted Answer · 2020-01-28 18:03:10Z

2

Add special cases for the first two DIVs, and adjust the modulus for the ones after that.

$count = 1

foreach( $names as $name ):
    if ($count == 1 || $count == 4 || ($count > 5 && $count % 3 == 2)) {
        echo '<div class="wrap">';
    }
    echo $name;
    if ($count == 3 || $count == 7 || ($count > 7 && $count % 3 == 1)) {
        echo '</div>';
    }
    $count++;
endforeach;
// Finish the last block -- lots of different cases
if ($count < 4 || ($count > 4 && $count < 8) || ($count > 8 && $count % 3 != 2)) {
    echo '</div>';
}

edited Jan 28, 2020 at 18:03

answered Jan 28, 2020 at 17:27

Barmar

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6 Comments

CyberJ Over a year ago

Thanks! It is now wrapping div within divs. What should the last one be after the endforeach;?if ($count%3 != 1) echo "</div>"; I use that to make sure the div is closed

Barmar Over a year ago

I added that to the answer, it's actually the trickiest part!

Barmar Over a year ago

And I got it wrong at first, because I forgot that we incremented $count already. It should be right now.

CyberJ Over a year ago

Hmm this is strange. It returns the first wrap set with 3 items which is ok but the second wrap set has the remaining wrap sets within it.

CyberJ Over a year ago

Hmm this is strange. It returns the first wrap set with 3 items which is ok but the second wrap set has the remaining wrap sets within it.

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