wordpress taxonomy query code example

Example 1: wp_query get by taxonomy

$the_query = new WP_Query( array(
    'post_type' => 'Adverts',
    'tax_query' => array(
        array (
            'taxonomy' => 'advert_tag',
            'field' => 'slug',
            'terms' => 'politics',
        )
    ),
) );

  // The Loop
    if ( $the_query->have_posts() ) {
        while ( $the_query->have_posts() ) {
          $the_query->the_post();
          the_title(); //show post title 
        }
    }

Example 2: wp query search

$query = new WP_Query( array( 's' => 'keyword' ) );

Example 3: search on taxonomy wordpress query

// We get a list taxonomies on the search box
function get_tax_by_search($search_text){

$args = array(
    'taxonomy'      => array( 'my_tax' ), // taxonomy name
    'orderby'       => 'id', 
    'order'         => 'ASC',
    'hide_empty'    => true,
    'fields'        => 'all',
    'name__like'    => $search_text
); 

$terms = get_terms( $args );

 $count = count($terms);
 if($count > 0){
     echo "<ul>";
     foreach ($terms as $term) {
       echo "<li><a href='".get_term_link( $term )."'>".$term->name."</a></li>";

     }
     echo "</ul>";
 }

}

// sample
get_tax_by_search('Foo');