PHP 如何在 Header 头里面传输信息？ [ 2.0 版本 ]

希望这段代码对你有所帮助。源码文件：
Response.php

    /**
     * Sends the response headers to the client.
     */
    protected function sendHeaders()
    {
        if (headers_sent($file, $line)) {
            throw new HeadersAlreadySentException($file, $line);
        }
        if ($this->_headers) {
            foreach ($this->getHeaders() as $name => $values) {
                $name = str_replace(' ', '-', ucwords(str_replace('-', ' ', $name)));
                // set replace for first occurrence of header but false afterwards to allow multiple
                $replace = true;
                foreach ($values as $value) {
                    header("$name: $value", $replace);
                    $replace = false;
                }
            }
        }
        $statusCode = $this->getStatusCode();
        header("HTTP/{$this->version} {$statusCode} {$this->statusText}");
        $this->sendCookies();
    }