PHP Socket编程 之 php实现http服务

http服务是建立在tcp服务之上的，它是tcp/ip协议的应用，前面我们已经实现了tcp服务，并且使用三种不同的方式连接tcp服务

既然http也是tcp应用层的一种，那么我们直接使用浏览器来连接tcp服务可不可以？答案是可以的，只不过连接之后直接返回给浏览器的信息，浏览器不能够正确的识别出来。那么怎么才能让浏览器正确的识别tcp服务返回的信息呢？

这个时候我们就需要使用到http协议啦，至于http传输中都传了哪些信息可以在浏览器中 f12 查看

http_serv.php文件

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<?php /** * Http 服务器类 */ class Http{     private $host;     private $port;     private $_root;       public $mime_types = array(         'avi' => 'video/x-msvideo',         'bmp' => 'image/bmp',         'css' => 'text/css',         'doc' => 'application/msword',         'gif' => 'image/gif',         'htm' => 'text/html',         'html' => 'text/html',         'ico' => 'image/x-icon',         'jpe' => 'image/jpeg',         'jpeg' => 'image/jpeg',         'jpg' => 'image/jpeg',         'js' => 'application/x-javascript',         'mpeg' => 'video/mpeg',         'ogg' => 'application/ogg',         'png' => 'image/png',         'rtf' => 'text/rtf',         'rtx' => 'text/richtext',         'swf' => 'application/x-shockwave-flash',         'wav' => 'audio/x-wav',         'wbmp' => 'image/vnd.wap.wbmp',         'zip' => 'application/zip',       );       /**      * @param string $host 监听地址      * @param int $port 监听端口      * @param string $_root 网站根目录     */     public function __construct($host,$port,$_root){         $this->host = $host;         $this->port = $port;         $this->_root = $_root;     }       /**     * 启动http服务     */     public function start(){         //创建socket套接字         $socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);         //设置阻塞模式         socket_set_block($socket);         //为套接字绑定ip和端口         socket_bind($socket,$this->host,$this->port);         //监听socket         socket_listen($socket,4);           while(true)         {             //接收客户端请求             if(($msgsocket = socket_accept($socket)) !== false){                 //读取请求内容                 $buf = socket_read($msgsocket, 9024);                                   preg_match("/\/(.*) HTTP\/1\.1/",$buf,$matchs);                                   preg_match("/Accept: (.*?),/",$buf,$matchss);                 //获取接收文件类型                 $type = explode("/",$matchss[1])[0];                   if($type=="text"){                     $content = $this->GetString($matchs[1]);                 }else{                     $content = $this->GetImg($matchs[1]);                 }                   socket_write($msgsocket,$content,strlen($content));                   socket_close($msgsocket);             }         }     }       /**      * 组装消息头信息模板      * @param int $code 状态码      * @param string $status 状态名称      * @param string $content 发送的文本内容      * @param string $content_type 发送的内容类型      * @return string     **/     public function GetHeaders($code,$status,$content="",$content_type="text/html;charset=utf-8"){         $header = '';         $header .= "HTTP/1.1 {$code} {$status}\r\n";         $header .= "Date: ".gmdate('D, d M Y H:i:s T')."\r\n";         $header .= "Content-Type: {$content_type}\r\n";         $header .= "Content-Length: ".strlen($content)."\r\n\r\n";//必须2个\r\n表示头部信息结束         $header .= $content;         return $header;     }       /**     * 组装文本发送信息      * @param string $url_path      * @return string     **/     public function GetString($url_path){         if($this->getRealPath($url_path)){             if(is_readable($this->getRealPath($url_path))){                 return $this->GetHeaders(200,"OK",file_get_contents($this->getRealPath($url_path)),$this->getMime($url_path));             }else{                 return $this->GetHeaders(401,"Unauthorized");             }                       }else{             return $this->GetHeaders(404,"Not Found");         }     }       /**     * 组装资源返回信息      * @param string $url_path      * @return string     **/     public function GetImg($url_path){         if($this->getRealPath($url_path)){               return $this->GetHeaders(200,"OK",file_get_contents($this->getRealPath($url_path)),$this->getMime($url_path));         }else{            return $this->GetHeaders(404,"Not Found");         }     }       /**      * 获取资源类型      * @param string $path      * @return mixed      */     public function getMime($path){        $type = explode(".",$path);        $mime = $this-> mime_types[$type[1]];        return $mime;     }       /**      * 获取访问资源的真实地址      * @param $url_path      * @return bool|string      */     public function getRealPath($url_path){         return realpath($this->_root."/".$url_path);     }   }   $server = new Http("127.0.0.1",3046,"wwwroot"); $server->start();

效果图：

 

github地址： https://github.com/enjoysmilehappy/http_server

链接：https://www.cnblogs.com/itsuibi/p/11139112.html