wordpress获取分类的顶级分类-WordPress主题

摘要：wordpress子分类获取父分类方法一 [crayon-65b8d2f9b2ea6447198008/] 方法二 w…

wordpress子分类获取父分类

方法一

$p_id = get_the_ID();

$cat_srt = get_category_parents(get_the_category($p_id)[0] ,false, ‘|’);

$catParentName = explode(‘|’,$cat_srt)[0];

方法二
wordpress获取分类的顶级父类
第一个函数（get_term_top_most_parent）接受一个分类ID和分类，并返回分类的顶级父类（或本身）;

第二功能（hey_top_parents）工作在循环中，以及，给定的分类法，返回后的分类顶层祖先。

// determine the topmost parent of a term

function get_term_top_most_parent($term_id, $taxonomy){

// start from the current term

$parent = get_term_by( ‘id’, $term_id, $taxonomy);

// climb up the hierarchy until we reach a term with parent = ‘0’

while ($parent->parent != ‘0’){

$term_id = $parent->parent;

$parent = get_term_by( ‘id’, $term_id, $taxonomy);

}

return $parent;

}

// so once you have this function you can just loop over the results returned by wp_get_object_terms

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

// get terms for current post

$terms = wp_get_object_terms( get_the_ID(), $taxonomy );

// set vars

$top_parent_terms = array();

foreach ( $terms as $term ) {

//get top level parent

$top_parent = get_term_top_most_parent( $term->term_id, $taxonomy );

//check if you have it in your array to only add it once

if ( !in_array( $top_parent, $top_parent_terms ) ) {

$top_parent_terms[] = $top_parent;

}

// build output (the HTML is up to you)

foreach ( $top_parent_terms as $term ) {

$r = ‘<ul>’;

$r .= ‘<li><a href=”‘. get_term_link( $term->slug, $taxonomy ) . ‘”>’ . $term->name . ‘</a></li>’;

}

$r .= ‘</ul>’;

// return the results

return $r;

}