PHP封裝的HttpClient類用法執行個體_php技巧

本文執行個體講述了PHP封裝的HttpClient類。分享給大家供大家參考。具體分析如下：

這是一段php封裝的HttpClient類，可實現GET POST Cookie Session等簡單的功能。原來做過，這兩天重新修改了一下。

<?php /*  * Filename: httpclient.php  * Created on 2012-12-21  * Created by RobinTang  * To change the template for this generated file go to  * Window - Preferences - PHPeclipse - PHP - Code Templates  */ class SinCookie {   public $name; // Cookie名稱   public $value; // Cookie值   // 下面三個屬性現在未實現   public $expires; // 到期時間   public $path; // 路徑   public $domain; // 域   // 從Cookie字串建立一個Cookie對象   function __construct($s = false) {     if ($s) {       $i1 = strpos($s, '=');       $i2 = strpos($s, ';');       $this->name = trim(substr($s, 0, $i1));       $this->value = trim(substr($s, $i1 +1, $i2 - $i1 -1));     }   }   // 擷取Cookie索引值對   function getKeyValue() {     return "$this->name=$this->value";   } } // 會話上下文 class SinHttpContext {   public $cookies; // 會話Cookies   public $referer; // 前一個頁面地址   function __construct() {     $this->cookies = array ();     $this->refrer = "";   }   // 設定Cookie   function cookie($key, $val) {     $ck = new SinCookie();     $ck->name = $key;     $ck->value = $val;     $this->addCookie($ck);   }   // 添加Cookie   function addCookie($ck) {     $this->cookies[$ck->name] = $ck;   }   // 擷取Cookies字串，請求時用到   function cookiesString() {     $res = '';     foreach ($this->cookies as $ck) {       $res .= $ck->getKeyValue() . ';';     }     return $res;   } } // Http請求對象 class SinHttpRequest {   public $url; // 請求地址   public $method = 'GET'; // 要求方法   public $host; // 主機   public $path; // 路徑   public $scheme; // 協議，http   public $port; // 連接埠   public $header; // 要求標頭   public $body; // 請求本文   // 設定頭   function setHeader($k, $v) {     if (!isset ($this->header)) {       $this->header = array ();     }     $this->header[$k] = $v;   }   // 擷取請求字串   // 包含頭和請求本文   // 擷取之後直接寫socket就行   function reqString() {     $matches = parse_url($this->url);     !isset ($matches['host']) && $matches['host'] = '';     !isset ($matches['path']) && $matches['path'] = '';     !isset ($matches['query']) && $matches['query'] = '';     !isset ($matches['port']) && $matches['port'] = '';     $host = $matches['host'];     $path = $matches['path'] ? $matches['path'] . ($matches['query'] ? '?' . $matches['query'] : '') : '/';     $port = !empty ($matches['port']) ? $matches['port'] : 80;     $scheme = $matches['scheme'] ? $matches['scheme'] : 'http';     $this->host = $host;     $this->path = $path;     $this->scheme = $scheme;     $this->port = $port;     $method = strtoupper($this->method);     $res = "$method $path HTTP/1.1\r\n";     $res .= "Host: $host\r\n";     if ($this->header) {       reset($this->header);       while (list ($k, $v) = each($this->header)) {         if (isset ($v) && strlen($v) > 0)           $res .= "$k: $v\r\n";       }     }     $res .= "\r\n";     if ($this->body) {       $res .= $this->body;       $res .= "\r\n\r\n";     }     return $res;   } } // Http響應 class SinHttpResponse {   public $scheme; // 協議   public $stasus; // 狀態，成功的時候是ok   public $code; // 狀態代碼，成功的時候是200   public $header; // 回應標頭   public $body; // 響應本文   function __construct() {     $this->header = array ();     $this->body = null;   }   function setHeader($key, $val) {     $this->header[$key] = $val;   } } // HttpClient class SinHttpClient {   public $keepcontext = true; // 是否維持會話   public $context; // 上下文   public $request; // 請求   public $response; // 響應   public $debug = false;  // 是否在Debug模式，  //為true的時候會列印出請求內容和相同的頭部   function __construct() {     $this->request = new SinHttpRequest();     $this->response = new SinHttpResponse();     $this->context = new SinHttpContext();     $this->timeout = 15; // 預設的逾時為15s   }   // 清除上一次的請求內容   function clearRequest() {     $this->request->body = '';     $this->request->setHeader('Content-Length', false);     $this->request->setHeader('Content-Type', false);   }   // post方法   // data為請求的資料   // 為索引值對的時候類比表單提交   // 其他時候為資料提交，提交的形式為xml   // 如有其他需求，請自行擴充   function post($url, $data = false) {     $this->clearRequest();     if ($data) {       if (is_array($data)) {         $con = http_build_query($data);         $this->request->setHeader('Content-Type', 'application/x-www-form-urlencoded');       } else {         $con = $data;         $this->request->setHeader('Content-Type', 'text/xml; charset=utf-8');       }       $this->request->body = $con;       $this->request->method = "POST";       $this->request->setHeader('Content-Length', strlen($con));     }     $this->startRequest($url);   }   // get方法   function get($url) {     $this->clearRequest();     $this->request->method = "GET";     $this->startRequest($url);   }   // 該方法為內部調用方法，不用直接調用   function startRequest($url) {     $this->request->url = $url;     if ($this->keepcontext) {       // 如果儲存內容相關的話設定相關資訊       $this->request->setHeader('Referer', $this->context->refrer);       $cks = $this->context->cookiesString();       if (strlen($cks) > 0)         $this->request->setHeader('Cookie', $cks);     }     // 擷取請求內容     $reqstring = $this->request->reqString();     if ($this->debug)       echo "Request:\n$reqstring\n";     try {       $fp = fsockopen($this->request->host, $this->request->port, $errno, $errstr, $this->timeout);     } catch (Exception $ex) {       echo $ex->getMessage();       exit (0);     }     if ($fp) {       stream_set_blocking($fp, true);       stream_set_timeout($fp, $this->timeout);       // 寫資料       fwrite($fp, $reqstring);       $status = stream_get_meta_data($fp);       if (!$status['timed_out']) { //未逾時         // 下面的迴圈用來讀取回應標頭部         while (!feof($fp)) {           $h = fgets($fp);           if ($this->debug)             echo $h;           if ($h && ($h == "\r\n" || $h == "\n"))             break;           $pos = strpos($h, ':');           if ($pos) {             $k = strtolower(trim(substr($h, 0, $pos)));             $v = trim(substr($h, $pos +1));             if ($k == 'set-cookie') {               // 更新Cookie               if ($this->keepcontext) {                 $this->context->addCookie(new SinCookie($v));               }             } else {               // 添加到頭裡面去               $this->response->setHeader($k, $v);             }           } else {             // 第一行資料             // 解析響應狀態             $preg = '/^(\S*) (\S*) (.*)$/';             preg_match_all($preg, $h, $arr);             isset ($arr[1][0]) & $this->response->scheme = trim($arr[1][0]);             isset ($arr[2][0]) & $this->response->stasus = trim($arr[2][0]);             isset ($arr[3][0]) & $this->response->code = trim($arr[3][0]);           }         }         // 擷取響應本文長度         $len = (int) $this->response->header['content-length'];         $res = '';         // 下面的迴圈讀取本文         while (!feof($fp) && $len > 0) {           $c = fread($fp, $len);           $res .= $c;           $len -= strlen($c);         }         $this->response->body = $res;       }       // 關閉Socket       fclose($fp);       // 把返回儲存到上下文維持中       $this->context->refrer = $url;     }   } } // demo // now let begin test it $client = new SinHttpClient(); // create a client $client->get('http://www.baidu.com/');  // get echo $client->response->body; // echo ?>

希望本文所述對大家的php程式設計有所協助。