phpbb\install\helper\iohandler\ajax_iohandler::send_response PHP Method

    public function send_response($no_more_output = false)
    {
        $json_data_array = $this->prepare_json_array($no_more_output);
        if (empty($json_data_array)) {
            return;
        }
        $json_data = json_encode($json_data_array);
        // Try to push content to the browser
        print str_pad(' ', 4096) . "\n";
        print $json_data . "\n\n";
        flush();
    }