Ticket #28155: 28155.diff

wp-includes/wp-db.php

@@ -1290 +1290 @@
                 $this->rows_affected = $this->num_rows = 0;
                 $this->last_error  = '';
 
-                if ( is_resource( $this->result ) ) {
-                        if ( $this->use_mysqli ) {
-                                mysqli_free_result( $this->result );
-                        } else {
-                                mysql_free_result( $this->result );
-                        }
+                if ( $this->use_mysqli && $this->result instanceof mysqli_result ) {
+                        while( $this->dbh->more_results() ) $this->dbh->next_result();
+                } elseif ( is_resource( $this->result ) ) {
+                        mysql_free_result( $this->result );
                 }
         }