php模拟post发送数据

    $flag = 0;
    //要post的数据
$argv = array(
     'var1'=>'abc',
     'var2'=>'你好吗');
//构造post字符串
foreach ($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);
?>

php, post