Unable to get all tags from specific categories

Question

Unable to get all tags from specific categories

tigre

2022年5月6日 20:07

I'm trying to use a WP_Query(); targeting specific categories and displaying all the tags used for posts within those categories.

I noticed that some tags, like truffles aren't being included in the results even though that post is categorized as a recipe and it's other category, sweets, is also included in the category array.

Any thoughts on what I'm doing wrong so as to get only some of the tags? Thanks!

    ul class="tag-list"
    ?php

      $query = new WP_Query( 'cat=4,101,94,93,56,72,99,100,63,98,95,96,80' );

        $posttags = "";
        if (have_posts()) : while (have_posts()) : the_post();

            if( get_the_tag_list() ){
                $posttags = $posttags . get_the_tag_list('',',',',');
            }

        endwhile; endif; 

      wp_reset_postdata();  

        // Explode tags in array
        $sortedtags = explode(',', $posttags);

        // Sort array
        asort($sortedtags);            

        // Remove duplicates from array
        $sortedtags = array_unique($sortedtags);

        // Remove the blank entry due to get_the_tag_list
        $sortedtags = array_values( array_filter($sortedtags) );

        foreach ($sortedtags as $tagname) {
        echo 'li' . $tagname . '/li';
        }

    ?
    /ul

Update

I thought my used of the main loop if (have_posts)...the_post(); was screwing things up so I edited the code, but I'm still missing my my mushrooms! :P

    ul class="tag-list"
    ?php

  $query_args = array( 'cat' = '4,101,94,93,56,72,99,100,63,98,95,96,80' );
  $query = new WP_Query( $query_args );

    $posttags = "";
    while( $query-have_posts() ) {
        $query-the_post();
    if( get_the_tag_list() ){
        $posttags = $posttags . get_the_tag_list('',',',',');
    }
    }

  wp_reset_postdata();  

    // Explode tags in array
    $sortedtags = explode(',', $posttags);

    // Sort array
    asort($sortedtags);            

    // Remove duplicates from array
    $sortedtags = array_unique($sortedtags);

    // Remove the blank entry due to get_the_tag_list
    $sortedtags = array_values( array_filter($sortedtags) );

    foreach ($sortedtags as $tagname) {
    echo 'li' . $tagname . '/li';
    }

    ?
    /ul

Topic wp-query tags categories Wordpress

Category Web

tigre · Accepted Answer · 2014年11月19日 02:12

Looks like all I needed was to include 'posts_per_page' => -1 in the $query_args array.

Final, working code:

    <ul class="tag-list">
        <?php

        $query_args = array(
            // Easier to call the parent category, "recipe" instead of dealing with all these ids
            // 'cat' => '101,94,93,56,72,99,100,63,98,95,96,80,4',
            // Calling recipes (4) and ingredients (56) category ids - specific recipe types that are children of recipes get included
            'category__in' => array( 4, 56 ),
            // Grabs all posts, not just the ones on the first page
            'posts_per_page' => -1
        );
        $query = new WP_Query( $query_args );
        //  $query = new WP_Query( 'author_name=centehua' );

        $posttags = "";
        while( $query->have_posts() ) {
            $query->the_post();
          if( get_the_tag_list() ){
              $posttags = $posttags . get_the_tag_list('',',',',');
          }
        }

        wp_reset_postdata();  

        // Explode tags in array
        $sortedtags = explode(',', $posttags);

        // Sort array
        asort($sortedtags);            

        // Remove duplicates from array
        $sortedtags = array_unique($sortedtags);

        // Remove the blank entry due to get_the_tag_list
        $sortedtags = array_values( array_filter($sortedtags) );

        foreach ($sortedtags as $tagname) {
          echo '<li>' . $tagname . '</li>';
        }

        ?>
    </ul>

Unable to get all tags from specific categories

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