I want the tag to be shown only once

[coolcoolhomebody]

I made it possible to tag each post,
On the Photography page, I made sure that all of the tags I created appear.

But I only want tags with the same name to appear once.

Even if I write it several times, can I have the same name appear only once?

<div class="category-box">
<span>Year</span>
<ul class="filter option-set" data-filter-group="content">
  <?php foreach ($page->children()->listed() as $product): ?>
  <?php foreach ($product->yeartags()->split( ) as $ytags): ?>
    <li class="<?= $ytags ?>">
      <a href="#" data-filter-value=".<?= $ytags ?>">
        <span class="tags_img"></span>
        <span class="tags_text"><?= $ytags ?></span>
      </a>
    </li>
  <?php endforeach ?>
  <?php endforeach ?>
</ul>

[pixelijn]

What you want to do instead of looping through all pages and then through all tags is pluck the tags from the pages:

$tags = $page->children()->listed()->pluck('yeartags', ',', true);

The third parameter ($unique) makes sure that each tag only appears once. The result is an array of tags.

$pages->pluck()

[coolcoolhomebody]

@pixelijn

$tags = $page->children()->listed()->pluck('yeartags', ',', true);

Thank you for your answer!!!
I think this is the answer I was looking for!

Could you give me a more specific example of how to write it?

I don’t know how to write as you told me.

 <?php foreach($page->children()->pluck('yeartags') as $title): ?>
    <li><?= html($title) ?></li>
  <?php endforeach ?>

[pixelijn]

<?php $ytags = $page->children()->listed()->pluck('yeartags', ',', true); ?>
<ul class="filter option-set" data-filter-group="content">
  <?php foreach ($ytags as $ytag): ?>
    <li class="<?= $ytag ?>">
      <a href="#" data-filter-value=".<?= $ytag ?>">
        <span class="tags_img"></span>
        <span class="tags_text"><?= $ytag ?></span>
      </a>
    </li>
  <?php endforeach ?>

[coolcoolhomebody]

Thank you very much!!! You are an angel and you are the best!!