php - How to display taxonomy parent for selected taxonomy -

i want show on site parent of selected taxonomy. have above code problem is showing selected taxonomy in list structure.

global $post; $features = get_the_terms( $post->id, 'property-feature' );  if ( !empty( $features ) && is_array( $features ) && !is_wp_error( $features ) ) { ?> <div class="property-features">     <?php     global $inspiry_options;     $property_features_title = $inspiry_options[ 'inspiry_property_features_title' ];     if( !empty( $property_features_title ) ) {         ?><h4 class="fancy-title"><?php echo esc_html( $property_features_title ); ?></h4><?php     }     ?>     <ul class="property-features-list clearfix">         <?php          foreach( $parent_term $single_feature ) {             echo '<li><a href="' . get_term_link( $single_feature->slug, 'property-feature' ) .'">'. $single_feature->name . '</a></li>';         }         ?>     </ul> </div> <?php 

}

example:

parent: option 1, option 2

parent 2 : option 3, option 4

if select option 2 , option 3 want see

parent: option 2

parent 2 : option 3

updare 2

  global $post; $features = get_the_terms( $post->id, 'property-feature' ); $featuresss = get_the_terms( $post->id, 'property-feature' );  // determine topmost parent of term function get_term_top_most_parent($term_id, $taxonomy){     // start current term     $parent  = get_term_by( 'id', $term_id, $taxonomy);     // climb hierarchy until reach term parent = '0'     while ($parent->parent != '0'){         $term_id = $parent->parent;          $parent  = get_term_by( 'id', $term_id, $taxonomy);     }     return $parent; }  // once have function can loop on results returned wp_get_object_terms  function hey_top_parents($taxonomy, $results = 1) {     // terms current post     $terms = wp_get_object_terms( get_the_id(), $taxonomy );     $y = get_the_terms($terms->term_id, $taxonomy);     // set vars     $top_parent_terms = array();     foreach ( $terms $term ) {         //get top level parent         $top_parent = get_term_top_most_parent( $term->term_id, $taxonomy );         //check if have in array add once         if ( !in_array( $top_parent, $top_parent_terms ) ) {             $top_parent_terms[] = $top_parent;         }     }     // build output (the html you)         foreach( $top_parent_terms $single_feature ) {                 echo '<li><a href="' . get_term_link( $single_feature->slug, 'property-feature' ) .'">'. $single_feature->name . '</a></li>';                 foreach( $terms $single ) {                     echo '<ul><li><a href="' . get_term_link( $single->slug, 'property-feature' ) .'">'. $single->name . '</a></li></ul>';                 }             }      //return $top_parent_terms;  } 

i managed display top parent selected taxonomy problem need display in top parent anly selected taxonomy parent

global $post; $taxonomy = "property-feature";  // determine topmost parent of term function get_term_top_most_parent($term_id, $taxonomy){     // start current term     $parent  = get_term_by( 'id', $term_id, $taxonomy);     // climb hierarchy until reach term parent = '0'     while ($parent->parent != '0'){         $term_id = $parent->parent;          $parent  = get_term_by( 'id', $term_id, $taxonomy);     }     return $parent; }  // once have function can loop on results returned wp_get_object_terms  function hey_top_parents($taxonomy, $results = 1) {     // terms current post     $terms = wp_get_object_terms( get_the_id(), $taxonomy );      // set vars     $top_parent_terms = array();     foreach ( $terms $term ) {         //get top level parent         $top_parent = get_term_top_most_parent( $term->term_id, $taxonomy );         //check if have in array add once         if ( !in_array( $top_parent, $top_parent_terms ) ) {             $top_parent_terms[] = $top_parent;         }     }     // build output (the html you)     foreach( $top_parent_terms $single_feature )      {         echo '<li><a href="' . get_term_link( $single_feature->slug, $taxonomy ) .'">'. $single_feature->name . '</a></li>';          foreach( $terms $single ) {             if( $single_feature->term_id == $single->parent ) {                 echo '<ul><li><a href="' . get_term_link( $single->slug, $taxonomy ) .'">'. $single->name . '</a></li></ul>';             }         }     }      //return $top_parent_terms; } 

changes:

1) moved taxonomy name variable (used in echo's).

$taxonomy = "property-feature"; 

2) added if condition code responsible displaying sub terms.

    if( $single_feature->term_id == $single->parent ) {         echo '<ul><li><a href="' . get_term_link( $single->slug, $taxonomy ) .'">'. $single->name . '</a></li></ul>';     } 

removed (not used lines of codes):

1)

$features = get_the_terms( $post->id, 'property-feature' ); $featuresss = get_the_terms( $post->id, 'property-feature' ); 

2)

$y = get_the_terms($terms->term_id, $taxonomy); 

consider:

1) removing $results variable from:

function hey_top_parents($taxonomy, $results = 1) { 

it not used anywhere or maybe should determine if results should returned or displayed function.