Ticket #11904: is_tax_term.11904.diff

wp-includes/query.php

@@ -193 +193 @@
 }
 
 /**
+ * Determine whether the current query is for the given taxonomy or a term
+ * in that taxonomy.
+ * 
+ * @param string $taxonomy The taxonomy name. Required.
+ * @param int|array|string $term The term's ID, array of term IDs, or term slug.
+ * @return bool If the given taxonomy and term or terms  
+ * query, true; otherwise, false.
+ */
+function is_tax_term($taxonomy, $term = null) {
+        global $wp_query, $wp_taxonomies;
+
+        if ( 
+                ( $wp_query->is_tax || $wp_query->is_category || $wp_query->is_tag ) &&
+                in_array($taxonomy, array_keys($wp_taxonomies)) 
+        ) {
+                $queried_object = $wp_query->get_queried_object();
+                if ( isset($queried_object->taxonomy) && isset($queried_object->term_id) ) {
+                        $term_array = (array) $term;
+                        if ( 
+                                $taxonomy == $queried_object->taxonomy &&
+                                (
+                                        empty( $term ) ||
+                                        count(array_intersect(
+                                                array($queried_object->term_id, $queried_object->name, $queried_object->slug), 
+                                                $term_array
+                                        ))
+                                )
+                        ) {
+                                return true;
+                        }
+                }
+        }
+        return false;
+}
+
+/**
  * Whether the current page query has the given tag slug or contains tag.
  *
  * @since 2.3.0