Ticket #39215: 39215.4.patch

src/wp-includes/taxonomy.php

@@ -1877 +1877 @@
                 $object_ids = array($object_ids);
         $object_ids = array_map('intval', $object_ids);
 
+        $args = wp_parse_args( $args );
+
         $args['taxonomy'] = $taxonomies;
         $args['object_ids'] = $object_ids;
 

tests/phpunit/tests/term/wpGetObjectTerms.php

@@ -690 +690 @@
                 // all terms should still be objects
                 return $terms;
         }
+
+        public function test_verify_args_parameter_can_be_string() {
+                $p = self::factory()->post->create();
+
+                $t1 = self::factory()->term->create( array(
+                        'taxonomy' => $this->taxonomy,
+                        'name' => 'AAA',
+                ) );
+                $t2 = self::factory()->term->create( array(
+                        'taxonomy' => $this->taxonomy,
+                        'name' => 'ZZZ',
+                ) );
+                $t3 = self::factory()->term->create( array(
+                        'taxonomy' => $this->taxonomy,
+                        'name' => 'JJJ',
+                ) );
+
+                wp_set_object_terms( $p, array( $t1, $t2, $t3 ), $this->taxonomy );
+
+                $found = wp_get_object_terms( $p, $this->taxonomy, 'orderby=name&fields=ids' );
+
+                $this->assertEquals( array( $t1, $t3, $t2 ), $found );
+        }
 }