get_term_link()

为分类术语存档生成永久链接。

原型

get_term_link( object|int|string $term, string $taxonomy = '' )

参数

$term (object|int|string) (Required) 将检索其链接的术语object，ID或slug。

$taxonomy (string) (Optional)  分类。

返回值

(string|WP_Error)  HTML链接到分类学术语存档成功，

源文件

路径：wp-includes/taxonomy.php

<?php
...
function get_term_link( $term, $taxonomy = '' ) {
	global $wp_rewrite;
	if ( !is_object($term) ) {
		if ( is_int( $term ) ) {
			$term = get_term( $term, $taxonomy );
		} else {
			$term = get_term_by( 'slug', $term, $taxonomy );
		}
	}
	if ( !is_object($term) )
		$term = new WP_Error( 'invalid_term', __( 'Empty Term.' ) );
	if ( is_wp_error( $term ) )
		return $term;
	$taxonomy = $term->taxonomy;
	$termlink = $wp_rewrite->get_extra_permastruct($taxonomy);
	/**
	 * Filters the permalink structure for a terms before token replacement occurs.
	 *
	 * @since 4.9.0
	 *
	 * @param string  $termlink The permalink structure for the term's taxonomy.
	 * @param WP_Term $term     The term object.
	 */
	$termlink = apply_filters( 'pre_term_link', $termlink, $term );
	$slug = $term->slug;
	$t = get_taxonomy($taxonomy);
	if ( empty($termlink) ) {
		if ( 'category' == $taxonomy )
			$termlink = '?cat=' . $term->term_id;
		elseif ( $t->query_var )
			$termlink = "?$t->query_var=$slug";
		else
			$termlink = "?taxonomy=$taxonomy&term=$slug";
		$termlink = home_url($termlink);
	} else {
		if ( $t->rewrite['hierarchical'] ) {
			$hierarchical_slugs = array();
			$ancestors = get_ancestors( $term->term_id, $taxonomy, 'taxonomy' );
			foreach ( (array)$ancestors as $ancestor ) {
				$ancestor_term = get_term($ancestor, $taxonomy);
				$hierarchical_slugs[] = $ancestor_term->slug;
			}
			$hierarchical_slugs = array_reverse($hierarchical_slugs);
			$hierarchical_slugs[] = $slug;
			$termlink = str_replace("%$taxonomy%", implode('/', $hierarchical_slugs), $termlink);
		} else {
			$termlink = str_replace("%$taxonomy%", $slug, $termlink);
		}
		$termlink = home_url( user_trailingslashit($termlink, 'category') );
	}
	// Back Compat filters.
	if ( 'post_tag' == $taxonomy ) {
		/**
		 * Filters the tag link.
		 *
		 * @since 2.3.0
		 * @deprecated 2.5.0 Use 'term_link' instead.
		 *
		 * @param string $termlink Tag link URL.
		 * @param int    $term_id  Term ID.
		 */
		$termlink = apply_filters( 'tag_link', $termlink, $term->term_id );
	} elseif ( 'category' == $taxonomy ) {
		/**
		 * Filters the category link.
		 *
		 * @since 1.5.0
		 * @deprecated 2.5.0 Use 'term_link' instead.
		 *
		 * @param string $termlink Category link URL.
		 * @param int    $term_id  Term ID.
		 */
		$termlink = apply_filters( 'category_link', $termlink, $term->term_id );
	}
	/**
	 * Filters the term link.
	 *
	 * @since 2.5.0
	 *
	 * @param string $termlink Term link URL.
	 * @param object $term     Term object.
	 * @param string $taxonomy Taxonomy slug.
	 */
	return apply_filters( 'term_link', $termlink, $term, $taxonomy );
}
...
?>

其他

英文文档：https://developer.wordpress.org/reference/functions/get_term_link/