Ticket #54453: 54453.patch

wp-includes/wp-db.php

@@ -1320 +1320 @@
 
                 // If args were passed as an array (as in vsprintf), move them up.
                 $passed_as_array = false;
-                if ( is_array( $args[0] ) && count( $args ) === 1 ) {
+                if ( isset( $args[0] ) && is_array( $args[0] ) && count( $args ) === 1 ) {
                         $passed_as_array = true;
                         $args            = $args[0];
                 }