Save loop output into a variable

Question

I have a loop to get a list of terms for a taxonomy.

    <?php 
  $terms = get_field('modell');
  if( $terms ):
    $total = count($terms);
    $count = 1;
    foreach( $terms as $term ):
      ?>
      '<?php echo $term->slug; ?>'
      <?php 
      if ($count < $total) {
        echo ', ';
      }
      $count++;
    endforeach;
  endif; 
?>

The loop output is this:

 'termname-one','termname-two','termname-three'

Now I want to save this output into variable ($termoutput) and insert it into a array of terms of following loop:

<?php 
query_posts( array(  
    'post_type' => 'posttypename', 
    'posts_per_page' => -1, 
    'orderby' => 'title',
    'order' => 'ASC',
    'tax_query' => array( 
       array( 
          'taxonomy' => 'systems', 
          'field' => 'slug', 
         'terms' => array($termoutput)
       ) 
   ) 

) );    ?>

Is there a way to achive this? Thank you!

$termoutput = []; before the foreach. Then in your loop instead of echo use $termoutput[] = $term->slug;... that's literally it. — ɴᴀᴛᴇ ᴅᴇᴠ
– ɴᴀᴛᴇ ᴅᴇᴠ, Commented Oct 18, 2017 at 12:13

Lorenzo Marcon · Accepted Answer · 2017-10-18 12:14:41Z

2

You should accumulate your output into an array like this:

$termoutput = array();

...

foreach( $terms as $term ) {
    $termoutput[] = $term->slug;
}

Then, in the second section of your code:

...
'terms' => $termoutput

answered Oct 18, 2017 at 12:14

Lorenzo Marcon

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Comments

hungrykoala · Accepted Answer · 2017-10-18 12:15:55Z

2

Try this:

 <?php 
  $terms = get_field('modell');
  if( $terms ):
    $total = count($terms);
    $count = 1;
    $termoutput = array();
    foreach( $terms as $term ):

      echo "'".$term->slug."'"; 
      $termoutput[] = $term->slug;

      if ($count < $total) {
        echo ', ';
      }
      $count++;
    endforeach;
  endif; 
?>


<?php 
    query_posts( array(  
        'post_type' => 'posttypename', 
        'posts_per_page' => -1, 
        'orderby' => 'title',
        'order' => 'ASC',
        'tax_query' => array( 
          array( 
              'taxonomy' => 'systems', 
              'field' => 'slug', 
             'terms' => $termoutput
           ) 
       ) 

    ) );    
 ?>

This will store $term->slug to $termoutput[] as an array.

edited Oct 18, 2017 at 12:15

answered Oct 18, 2017 at 12:14

hungrykoala

1,0811 gold badge13 silver badges29 bronze badges

2 Comments

ɴᴀᴛᴇ ᴅᴇᴠ Over a year ago

This will throw a warning in some cases because you haven't preset $termoutput as an array before the loop. Add $termoutput = array(); before the foreach.

hungrykoala Over a year ago

@naththedeveloper sorry forgot about that, was busy editing his code. Thank you

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