get_term_link( object|int|string $term, string $taxonomy = '' )
Generate a permalink for a taxonomy term archive.
Table of Contents
Description Description
Parameters Parameters
- $term
-
(object|int|string) (Required) The term object, ID, or slug whose link will be retrieved.
- $taxonomy
-
(string) (Optional) Taxonomy.
Default value: ''
Return Return
(string|WP_Error) HTML link to taxonomy term archive on success, WP_Error if term does not exist.
Source Source
File: wp-includes/taxonomy.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);
$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 );
}
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Changelog Changelog
| Version | Description |
|---|---|
| 2.5.0 | Introduced. |
More Information More Information
- Since the term can be an object, integer, or string, make sure that any numbers you pass in are explicitly converted to an integer (example: (int) $term_id). Otherwise the function will assume that $term is a slug instead of a term ID.
- PHP may halt if you attempt to print an error result ("Catchable fatal error: Object of class WP_Error could not be converted to string"). You should always use is_wp_error() to check the result of this function, in case the term does not exist.
User Contributed Notes User Contributed Notes
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$terms = get_terms( 'species' ); echo '<ul>'; foreach ( $terms as $term ) { // The $term is an object, so we don't need to specify the $taxonomy. $term_link = get_term_link( $term ); // If there was an error, continue to the next term. if ( is_wp_error( $term_link ) ) { continue; } // We successfully got a link. Print it out. echo '<li><a href="' . esc_url( $term_link ) . '">' . $term->name . '</a></li>'; } echo '</ul>';Expand full source codeCollapse full source code