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
    $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 == " " || $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 => email@example.com      
));   

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(exa