2.通过fsockopen
$URL=‘http://xxx.xxx.xxx.xx/xx/xxx/top.php';
$post_data['clientname'] = "test08";
$post_data['clientpasswd'] = "test08";
$post_data['submit'] = "ログイン";
$referrer="";
// parsing the given URL
$URL_Info=parse_url($URL);
// Building referrer
if($referrer=="") // if not given use this script as referrer
$referrer=$_SERVER["SCRIPT_URI"];

// making string from $data
foreach($post_data as $key=>$value)
$values[]="$key=".urlencode($value);

$data_string=implode("&",$values);
// Find out which port is needed - if not given use standard (=80)
if(!isset($URL_Info["port"]))
$URL_Info["port"]=80;
// building POST-request:
$request.="POST ".$URL_Info["path"]." HTTP/1.1\n";
$request.="Host: ".$URL_Info["host"]."\n";
$request.="Referer: $referrer\n";
$request.="Content-type: application/x-www-form-urlencoded\n";
$request.="Content-length: ".strlen($data_string)."\n";
$request.="Connection: close\n";
$request.="\n";
$request.=$data_string."\n";
$fp = fsockopen($URL_Info["host"],$URL_Info["port"]);
fputs($fp, $request);
while(!feof($fp)) {
   $result .= fgets($fp, 128);
}
fclose($fp);

用php模拟post来提交数据

利用php的socket编程来直接给接口发送数据来模拟post的操作。

<？PHP
/************************************************************************
Name: POST 测试程序
Vesion: 1.0 Date: 2004-08-05
*************************************************************************/

$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\r\n";
    $header .= "Host:127.0.0.1\r\n";
    $header .= "Referer:/mobile/sendpost.php\r\n";
    $header .= "Content-Type: application/x-www-form-urlencoded\r\n";
    $header .= "Content-Length: ".$length."\r\n";
    $header .= "Connection: Close\r\n\r\n";
    //添加post的字符串
    $header .= $params."\r\n";
    //发送post的数据
    fputs($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 == "\r\n")) {
             $inheader = 0;
        }
        if ($inheader == 0) {
            echo $line;
        }
    }
fclose($fp);
?>

还可以使用php类HttpClient
Snoopy http://sourceforge.net/projects/snoopy/or httpClient http://scripts.incutio.com/httpclient/
ref: http://www.llf535.com/html/wlbc/PHP/20070404/9298.html