interface/modules/zend_modules/library/Zend/Http/PhpEnvironment/Response.php

   1 <?php
   2 /**
   3  * Zend Framework (http://framework.zend.com/)
   4  *
   5  * @link      http://github.com/zendframework/zf2 for the canonical source repository
   6  * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
   7  * @license   http://framework.zend.com/license/new-bsd New BSD License
   8  */
   9
  10 namespace Zend\Http\PhpEnvironment;
  11
  12 use Zend\Http\Header\MultipleHeaderInterface;
  13 use Zend\Http\Response as HttpResponse;
  14
  15 /**
  16  * HTTP Response for current PHP environment
  17  */
  18 class Response extends HttpResponse
  19 {
  20     /**
  21      * The current used version
  22      * (The value will be detected on getVersion)
  23      *
  24      * @var null|string
  25      */
  26     protected $version;
  27
  28     /**
  29      * @var bool
  30      */
  31     protected $contentSent = false;
  32
  33     /**
  34      * Return the HTTP version for this response
  35      *
  36      * @return string
  37      * @see \Zend\Http\AbstractMessage::getVersion()
  38      */
  39     public function getVersion()
  40     {
  41         if (!$this->version) {
  42             $this->version = $this->detectVersion();
  43         }
  44         return $this->version;
  45     }
  46
  47     /**
  48      * Detect the current used protocol version.
  49      * If detection failed it falls back to version 1.0.
  50      *
  51      * @return string
  52      */
  53     protected function detectVersion()
  54     {
  55         if (isset($_SERVER['SERVER_PROTOCOL']) && $_SERVER['SERVER_PROTOCOL'] == 'HTTP/1.1') {
  56             return self::VERSION_11;
  57         }
  58
  59         return self::VERSION_10;
  60     }
  61
  62     /**
  63      * @return bool
  64      */
  65     public function headersSent()
  66     {
  67         return headers_sent();
  68     }
  69
  70     /**
  71      * @return bool
  72      */
  73     public function contentSent()
  74     {
  75         return $this->contentSent;
  76     }
  77
  78     /**
  79      * Send HTTP headers
  80      *
  81      * @return Response
  82      */
  83     public function sendHeaders()
  84     {
  85         if ($this->headersSent()) {
  86             return $this;
  87         }
  88
  89         $status  = $this->renderStatusLine();
  90         header($status);
  91
  92         /** @var \Zend\Http\Header\HeaderInterface $header */
  93         foreach ($this->getHeaders() as $header) {
  94             if ($header instanceof MultipleHeaderInterface) {
  95                 header($header->toString(), false);
  96                 continue;
  97             }
  98             header($header->toString());
  99         }
 100
 101         $this->headersSent = true;
 102         return $this;
 103     }
 104
 105     /**
 106      * Send content
 107      *
 108      * @return Response
 109      */
 110     public function sendContent()
 111     {
 112         if ($this->contentSent()) {
 113             return $this;
 114         }
 115
 116         echo $this->getContent();
 117         $this->contentSent = true;
 118         return $this;
 119     }
 120
 121     /**
 122      * Send HTTP response
 123      *
 124      * @return Response
 125      */
 126     public function send()
 127     {
 128         $this->sendHeaders()
 129              ->sendContent();
 130         return $this;
 131     }
 132 }