Ticket #30013: 30013.3.diff

src/wp-includes/post-functions.php

@@ -835 +835 @@
 function get_post_type_object( $post_type ) {
         global $wp_post_types;
 
-        if ( empty($wp_post_types[$post_type]) )
+        if ( ! is_scalar( $post_type ) || empty( $wp_post_types[ $post_type ] ) ) {
                 return null;
+        }
 
-        return $wp_post_types[$post_type];
+        return $wp_post_types[ $post_type ];
 }
 
 /**

tests/phpunit/tests/post/types.php

@@ -122 +122 @@
                 return $labels;
         }
 
+
+        /**
+         * @ticket 30013
+         */
+        public function test_get_post_type_object_with_non_scalar_values() {
+                $this->assertFalse( post_type_exists( 'foo' ) );
+
+                register_post_type( 'foo' );
+
+                $this->assertTrue( post_type_exists( 'foo' ) );
+
+                $this->assertNotNull( get_post_type_object( 'foo' ) );
+                $this->assertNull( get_post_type_object( array() ) );
+                $this->assertNull( get_post_type_object( array( 'foo' ) ) );
+                $this->assertNull( get_post_type_object( new stdClass ) );
+
+                _unregister_post_type( 'foo' );
+
+                $this->assertFalse( post_type_exists( 'foo' ) );
+        }
 }