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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Http\PhpEnvironment;
use Zend\Http\Header\MultipleHeaderInterface;
use Zend\Http\Response as HttpResponse;
/**
* HTTP Response for current PHP environment
*/
class Response extends HttpResponse
{
/**
* The current used version
* (The value will be detected on getVersion)
*
* @var null|string
*/
protected $version;
/**
* @var bool
*/
protected $contentSent = false;
/**
* Return the HTTP version for this response
*
* @return string
* @see \Zend\Http\AbstractMessage::getVersion()
*/
public function getVersion()
{
if (!$this->version) {
$this->version = $this->detectVersion();
}
return $this->version;
}
/**
* Detect the current used protocol version.
* If detection failed it falls back to version 1.0.
*
* @return string
*/
protected function detectVersion()
{
if (isset($_SERVER['SERVER_PROTOCOL']) && $_SERVER['SERVER_PROTOCOL'] == 'HTTP/1.1') {
return self::VERSION_11;
}
return self::VERSION_10;
}
/**
* @return bool
*/
public function headersSent()
{
return headers_sent();
}
/**
* @return bool
*/
public function contentSent()
{
return $this->contentSent;
}
/**
* Send HTTP headers
*
* @return Response
*/
public function sendHeaders()
{
if ($this->headersSent()) {
return $this;
}
$status = $this->renderStatusLine();
header($status);
/** @var \Zend\Http\Header\HeaderInterface $header */
foreach ($this->getHeaders() as $header) {
if ($header instanceof MultipleHeaderInterface) {
header($header->toString(), false);
continue;
}
header($header->toString());
}
$this->headersSent = true;
return $this;
}
/**
* Send content
*
* @return Response
*/
public function sendContent()
{
if ($this->contentSent()) {
return $this;
}
echo $this->getContent();
$this->contentSent = true;
return $this;
}
/**
* Send HTTP response
*
* @return Response
*/
public function send()
{
$this->sendHeaders()
->sendContent();
return $this;
}
}