php模拟post行为代码总结

GET行为比较简单，POST比较复杂一些。这里提供两种方法供选择：第一：手写代码。第二：利用HttpClient php类库
第一种方法：
PHP代码
 <？PHP           
     $flag = 0;       
     //要post的数据        
 $argv = array(       
      'var1'=>'abc',        
      'var2'=>'你好吗');        
 //构造要post的字符串        
 foreach ($argv as $key=>$value) {        
      if ($flag!=0) {       
              $params .= "&";        
              $flag = 1;        
      }        
      $params.= $key."="; $params.= urlencode($value);        
      $flag = 1;        
      }        
      $length = strlen($params);       
          //创建socket连接        
      $fp = fsockopen("127.0.0.1",80,$errno,$errstr,10) or exit($errstr."--->".$errno);        
      //构造post请求的头        
      $header = "POST /mobile/try.php HTTP/1.1";        
      $header .= "Host:127.0.0.1";        
      $header .= "Referer:/mobile/sendpost.php";        
      $header .= "Content-Type: application/x-www-form-urlencoded";        
      $header .= "Content-Length: ".$length."";        
      $header .= "Connection: Close";       
      //添加post的字符串        
      $header .= $params."";        
      //发送post的数据        
      fputs($fp,$header);        
      $inheader = 1;        
      while (!feof($fp)) {       
              $line = fgets($fp,1024); //去除请求包的头只显示页面的返回数据        
              if ($inheader && ($line == "\n" || $line == "")) {       
                  $inheader = 0;        
              }        
              if ($inheader == 0) {        
                  echo $line;        
              }        
      }        
 fclose($fp);        
 ?>       第二种方法是：使用httpclient类
PHP代码
 $pageContents = HttpClient::quickPost('http://example.com/someForm', array(       
     'name' => 'Some Name',       
     'email' => '[e-mail]'      
 ));    使用httpclient类库，可以去官方下载最新的类库，官方地址为：http://scripts.incutio.com/httpclient/index.php
附加一些点php httpclient的其他几个用法
静态方法获取网页：
PHP代码
 $pageContents = HttpClient::quickGet('http://example.com/');     Get方法获取
PHP代码
 $client = new HttpClient('example.com');       
 if (!$client->get('/')) {       
     die('An error occurred: '.$client->getError());       
 }       
 $pageContents = $client->getContent();    带调试的Get方法获取
PHP代码
 $client = new HttpClient('example.com');       
 $client->setDebug(true);       
 if (!$client->get('/')) {       
     die('An error occurred: '.$client->getError());       
 }       
 $pageContents = $client->getContent();     带自动转向的Get方法
PHP代码
 $client = new HttpClient('www.amazon.com');       
 $client->setDebug(true);       
 if (!$client->get('/')) {       
     die('An error occurred: '.$client->getError());       
 }       
 $pageContents = $client->getContent();     检查页面是否存在
PHP代码
 $client = new HttpClient('example.com');       
 $client->setDebug(true);       
 if (!$client->get('/thispagedoesnotexist')) {       
     die('An error occurred: '.$client->getError());       
 }       
 if ($client->getStatus() == '404') {       
     echo 'Page does not exist!';       
 }       
 $pageContents = $client->getContent();     伪造客户端
PHP代码
 $client = new HttpClient('example.com');       
 $client->setDebug(true);       
 $client->setUserAgent('Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.3a) Gecko/20021207');       
 if (!$client->get('/')) {       
     die('An error occurred: '.$client->getError());       
 }       
 $pageContents = $client->getContent();     登录验证并请求一个网页
PHP代码
 $client = new HttpClient('example.com');       
 $client->post('/login.php', array(       
     'username' => 'Simon',       
     'password' => 'ducks'      
 ));       
 if (!$client->get('/private.php')) {       
     die('An error occurred: '.$client->getError());       
 }       
 $pageContents = $client->getContent();      HTTP授权
PHP代码
 $client = new HttpClient('example.com');       
 $client->setAuthorization('Username', 'Password');       
 if (!$client->get('/')) {       
     die('An error occurred: '.$client->getError());       
 }       
 $pageContents = $client->getContent();       输出头信息
PHP代码
 $client = new HttpClient('example.com');       
 if (!$client->get('/')) {       
     die('An error occurred: '.$client->getError());       
 }       
 print_r($client->getHeaders());      设置一个域内重定向最多次数
PHP代码
 $client = new HttpClient('www.amazon.com');       
 $client->setDebug(true);       
 $client->setMaxRedirects(3);       
 $client->get('/');