diff -r 3d4e9c994f10 -r a86126ab1dd4 wp/wp-admin/post-new.php
--- a/wp/wp-admin/post-new.php	Tue Oct 22 16:11:46 2019 +0200
+++ b/wp/wp-admin/post-new.php	Tue Dec 15 13:49:49 2020 +0100
@@ -7,42 +7,42 @@
  */
 
 /** Load WordPress Administration Bootstrap */
-require_once( dirname( __FILE__ ) . '/admin.php' );
+require_once __DIR__ . '/admin.php';
 
 /**
  * @global string  $post_type
  * @global object  $post_type_object
- * @global WP_Post $post
+ * @global WP_Post $post             Global post object.
  */
 global $post_type, $post_type_object, $post;
 
 if ( ! isset( $_GET['post_type'] ) ) {
 	$post_type = 'post';
-} elseif ( in_array( $_GET['post_type'], get_post_types( array( 'show_ui' => true ) ) ) ) {
+} elseif ( in_array( $_GET['post_type'], get_post_types( array( 'show_ui' => true ) ), true ) ) {
 	$post_type = $_GET['post_type'];
 } else {
 	wp_die( __( 'Invalid post type.' ) );
 }
 $post_type_object = get_post_type_object( $post_type );
 
-if ( 'post' == $post_type ) {
+if ( 'post' === $post_type ) {
 	$parent_file  = 'edit.php';
 	$submenu_file = 'post-new.php';
-} elseif ( 'attachment' == $post_type ) {
+} elseif ( 'attachment' === $post_type ) {
 	if ( wp_redirect( admin_url( 'media-new.php' ) ) ) {
 		exit;
 	}
 } else {
 	$submenu_file = "post-new.php?post_type=$post_type";
-	if ( isset( $post_type_object ) && $post_type_object->show_in_menu && $post_type_object->show_in_menu !== true ) {
+	if ( isset( $post_type_object ) && $post_type_object->show_in_menu && true !== $post_type_object->show_in_menu ) {
 		$parent_file = $post_type_object->show_in_menu;
 		// What if there isn't a post-new.php item for this post type?
 		if ( ! isset( $_registered_pages[ get_plugin_page_hookname( "post-new.php?post_type=$post_type", $post_type_object->show_in_menu ) ] ) ) {
 			if ( isset( $_registered_pages[ get_plugin_page_hookname( "edit.php?post_type=$post_type", $post_type_object->show_in_menu ) ] ) ) {
-				// Fall back to edit.php for that post type, if it exists
+				// Fall back to edit.php for that post type, if it exists.
 				$submenu_file = "edit.php?post_type=$post_type";
 			} else {
-				// Otherwise, give up and highlight the parent
+				// Otherwise, give up and highlight the parent.
 				$submenu_file = $parent_file;
 			}
 		}
@@ -69,10 +69,10 @@
 /** This filter is documented in wp-admin/post.php */
 if ( apply_filters( 'replace_editor', false, $post ) !== true ) {
 	if ( use_block_editor_for_post( $post ) ) {
-		include( ABSPATH . 'wp-admin/edit-form-blocks.php' );
+		require ABSPATH . 'wp-admin/edit-form-blocks.php';
 	} else {
 		wp_enqueue_script( 'autosave' );
-		include( ABSPATH . 'wp-admin/edit-form-advanced.php' );
+		require ABSPATH . 'wp-admin/edit-form-advanced.php';
 	}
 } else {
 	// Flag that we're not loading the block editor.
@@ -80,4 +80,4 @@
 	$current_screen->is_block_editor( false );
 }
 
-include( ABSPATH . 'wp-admin/admin-footer.php' );
+require_once ABSPATH . 'wp-admin/admin-footer.php';