protected function displayTables($data)
    {
        $this->line('General:');
        $general = (array) $data;
        unset($general['memory_usage'], $general['interned_strings_usage'], $general['opcache_statistics']);
        $this->table(['key', 'value'], $this->parseTable($general));

        $this->line(PHP_EOL.'Memory usage:');
        $this->table(['key', 'value'], $this->parseTable($data->memory_usage));

        $this->line(PHP_EOL.'Interned strings usage:');
        $this->table(['key', 'value'], $this->parseTable($data->interned_strings_usage));

        $this->line(PHP_EOL.'Statistics:');
        $this->table(['option', 'value'], $this->parseTable($data->opcache_statistics));
    }