RE-order array elements for html dependency

Question

I have some HTML formatting on my front end template that depends on the result of a foreach loop on an array, in this example in order to get the right formatting it expects the order of the panel_type_id to be 4,6,3 otherwise it builds the formatting wrong.

If the panels are added in the order of 4,6,3 then there's no problem.

Is there a way to reorder the array on load so that no matter what it follows this order?

  <div class="row middle">
  <?php foreach($panelResult as $PR): ?>
  <?php if($PR['panel_type_id'] == 4){ ?>
  <!-- Left -->
  <div class="col-lg-6"  >
    <div class="row" style="height:50%; padding-bottom: 15px;">
        <div class="col-lg-12" style="height:100%;">
            <div style="/*background-color: rgba(255, 255, 255, 0.5);*/ height: 100%; ">
        <?php echo $PR['content']?>
        </div>
        </div>
    </div>
  <?php } elseif($PR['panel_type_id'] == 6){?>
    <div class="row" style="height:50%; padding-top: 15px;">
        <div class="col-lg-12" style="height:100%;">
            <div style="/*background-color: rgba(255, 255, 255, 0.5);*/ height: 100%;">
          <?php echo $PR['content']?>
        </div>
        </div>
    </div>
  </div>
  <?php } elseif($PR['panel_type_id'] == 3){?>
  <div class="col-lg-6" >
        <div style="/*background-color: rgba(255, 255, 255, 0.5);*/ height: 100%; ">
        <?php echo $PR['content']?>
      </div>
  </div>
  <?php } ?>
  <?php endforeach; ?>
  </div><!--end row middle-->

dWinder · Accepted Answer · 2019-01-10 17:43:27Z

1

You can use usort and define your own function.

Consider the following:

$panelResult = array(["panel_type_id" => 3, "content" => "CCC"], ["panel_type_id" => 4, "content" => "BBB"], ["panel_type_id" => 6, "content" => "AAA"]);

function cmp($a, $b) {
    $goodOrder = [4,6,3];
    return array_search($a["panel_type_id"], $goodOrder) - array_search($b["panel_type_id"], $goodOrder);
}

usort($panelResult, "cmp");

Now the order of $panelResult will be: 4, 6, 3 so you just keep using your original code

edited Jan 10, 2019 at 17:43

answered Jan 10, 2019 at 16:17

dWinder

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9 Comments

Geoff_S Over a year ago

So I would just change your example from id to panel_type_id and data to content?

dWinder Over a year ago

Yes - will update my post with your var names. This is just example - notice that in your code you don't need to have Data at all...

Geoff_S Over a year ago

Oh oh, I see now! So will I still have a foreach though? How exactly will I incorporate that into my loop?

dWinder Over a year ago

This should come before the for loop - it will modify the array and then you can continue as your current code - I answered generally about re-ordering array regardless of your code

Geoff_S Over a year ago

Ok, I was thinking I would have to do this within a for loop on my current array to build the key/index relationship and then use the new array in my formatting loop but maybe I'm confused

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