CODEWITHSUNDEEP
phpwordpresscustom-post-typecustom-taxonomy
Francis Alvin Tan
Francis Alvin Tan

Reputation: 1087

Remove duplicates in foreach loop from custom taxonomy

It shows this result in the foreach loop and it should remove any duplicates

spain
philippines
spain

I tried using array_unique() but its not working for me

This is the code I'm using and working fine, its just that it has duplicates

<?php 
if (is_tax() || is_category() || is_tag() ){
    $qobj = get_queried_object();

    $args = array(
      'posts_per_page' => -1,
      'tax_query' => array(
        array(
          'taxonomy' => $qobj->taxonomy,
          'field' => 'slug', 
          'terms' => $qobj->slug
        )
      )
    );

    $random_query = new WP_Query( $args );

    if ($random_query->have_posts()) {
        while ($random_query->have_posts()) {
          $random_query->the_post();
            $term_list = wp_get_post_terms($post->ID, 'country', array("all"));
            foreach($term_list as $term_single) {
                echo '<a href="'.dirname(get_the_permalink()).'">';
                echo $term_single->slug;
                echo '</a><br>';
            }
        }
    }
    wp_reset_query();
} 
?>

added this for debugging - var_dump($term_list); and this is the result

array (size=1)
  0 => 
    object(WP_Term)[1464]
      public 'term_id' => int 2
      public 'name' => string 'Spain' (length=5)
      public 'slug' => string 'spain' (length=5)
      public 'term_group' => int 0
      public 'term_taxonomy_id' => int 2
      public 'taxonomy' => string 'country' (length=7)
      public 'description' => string '' (length=0)
      public 'parent' => int 0
      public 'count' => int 2
      public 'filter' => string 'raw' (length=3)

array (size=1)
  0 => 
    object(WP_Term)[1473]
      public 'term_id' => int 5
      public 'name' => string 'Philippines' (length=11)
      public 'slug' => string 'philippines' (length=11)
      public 'term_group' => int 0
      public 'term_taxonomy_id' => int 5
      public 'taxonomy' => string 'country' (length=7)
      public 'description' => string '' (length=0)
      public 'parent' => int 0
      public 'count' => int 2
      public 'filter' => string 'raw' (length=3)

array (size=1)
  0 => 
    object(WP_Term)[1475]
      public 'term_id' => int 2
      public 'name' => string 'Spain' (length=5)
      public 'slug' => string 'spain' (length=5)
      public 'term_group' => int 0
      public 'term_taxonomy_id' => int 2
      public 'taxonomy' => string 'country' (length=7)
      public 'description' => string '' (length=0)
      public 'parent' => int 0
      public 'count' => int 2
      public 'filter' => string 'raw' (length=3)

All I need is to remove the duplicates and I am set, I not not very familiar with this and its very complicated, I'm trying to figure this out since yesterday, anybody please help me get it working or just in the right track, thanks

Upvotes: 0

Views: 532

Answers (1)

Nigel Ren
Nigel Ren

Reputation: 57131

If you keep a list of those already displayed, then before displaying a new one check if it in that list (using in_array()). Once displayed, add this into the already displayed list to stop it appearing again...

$term_list = wp_get_post_terms($post->ID, 'country', array("all"));
foreach($term_list as $term_single) {
    if ( !in_array( $term_single->slug, $alreadyDisplayed) ) {
        echo '<a href="'.dirname(get_the_permalink()).'">';
        echo $term_single->slug;
        echo '</a><br>';
        $alreadyDisplayed[] =  $term_single->slug;
    }
}

You will need to have...

$alreadyDisplayed = [];

before the line 

while ($random_query->have_posts()) {

Upvotes: 1

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