Question

I am having issues while trying to build up a following query in WordPress using the tag_id as a filter:

    <?php 
        $the_query = new WP_Query( array ( 
        'posts_per_page' => '-1', 
        'tag_id' => '' 
        ) );
        while ( $the_query->have_posts() ) : $the_query->the_post();
    ?>

As you can see, the “tag_id” value is empty because I am trying to retrieve the value from here:

        <?php echo of_get_option('slideshow-tags', 'no entry' ); ?>

This echo is returning a value so it works but I don’t know how to adapt this to the query without getting php errors.

I tried:

    <?php 
        $the_query = new WP_Query( array ( 
        'posts_per_page' => '-1', 
        'tag_id' => 'echo of_get_option('slideshow-tags', 'no entry' );             '
        ) );
              while ( $the_query->have_posts() ) : $the_query->the_post();
    ?>  

but it won’t work.

Answer 1

You don’t want to echo the returned value of of_get_option, you want to use it in your array:

$the_query = new WP_Query(array( 
    'posts_per_page' => -1, 
    'tag_id' => of_get_option('slideshow-tags', 'no entry')
));

// Now just do the loop...