diff --git a/wp-admin/plugin-editor.php b/wp-admin/plugin-editor.php
index c920eb61b7..3e58a7ec60 100644
--- a/wp-admin/plugin-editor.php
+++ b/wp-admin/plugin-editor.php
@@ -93,9 +93,11 @@ $edit_error     = null;
 $posted_content = null;
 
 if ( 'POST' === $_SERVER['REQUEST_METHOD'] ) {
-	$r = wp_edit_theme_plugin_file( wp_unslash( $_POST ) );
-	if ( is_wp_error( $r ) ) {
-		$edit_error = $r;
+	$edit_result = wp_edit_theme_plugin_file( wp_unslash( $_POST ) );
+
+	if ( is_wp_error( $edit_result ) ) {
+		$edit_error = $edit_result;
+
 		if ( check_ajax_referer( 'edit-plugin_' . $file, 'nonce', false ) && isset( $_POST['newcontent'] ) ) {
 			$posted_content = wp_unslash( $_POST['newcontent'] );
 		}
@@ -122,9 +124,10 @@ if ( ! is_file( $real_file ) ) {
 } else {
 	// Get the extension of the file.
 	if ( preg_match( '/\.([^.]+)$/', $real_file, $matches ) ) {
-		$ext = strtolower( $matches[1] );
+		$extension = strtolower( $matches[1] );
+
 		// If extension is not in the acceptable list, skip it.
-		if ( ! in_array( $ext, $editable_extensions, true ) ) {
+		if ( ! in_array( $extension, $editable_extensions, true ) ) {
 			wp_die( sprintf( '<p>%s</p>', __( 'Files of this type are not editable.' ) ) );
 		}
 	}
diff --git a/wp-includes/version.php b/wp-includes/version.php
index c132ebd848..bc6601f643 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.9-alpha-60927';
+$wp_version = '6.9-alpha-60928';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.