需要注意：
1.form的数据必须用rawurlencode编码联起来。
2.必须提交content-length长度
3.post表单的数据必须跟在\r\n\r\n后面。
$data["channel"]=$moRow['serviceCode'];
$data["mobile"]=$moRow['mobile'];
$data["gateway"]=$moRow['gateway'];
$data["isp"]=$moRow['isp'];
$data["linkid"]=$moRow['linkid'];
$data["msg"]=$content;
while (list($k,$v) = each($data)) {
$post .= rawurlencode($k)."=".rawurlencode($v)."&";
}
$post = substr( $post , 0 , -1 );
$len = strlen($post);
//发送
$host = "localhost";
$file = "/mtApp/send.php";
$fp = @fsockopen( $host , 80, $errno, $errstr, 30);
if (!$fp) {
echo "$errstr ($errno)\n";
} else {
$receive = '';
$out = "POST $file HTTP/1.1\r\n";
$out .= "Host: $host\r\n";
$out .= "Content-type: application/x-www-form-urlencoded\r\n";
$out .= "Connection: Close\r\n";
$out .= "Content-Length: $len\r\n";
$out .="\r\n";
$out .= $post."\r\n";
echot($out);
fwrite($fp, $out);
while (!feof($fp)) {
$receive .= fgets($fp, 128);
}
fclose($fp);
}
echo $receive;
一个普通的post头
POST /cgi-bin/tech/method.cgi HTTP/1.1
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-
powerpoint, application/vnd.ms-excel, application/msword, */*
Referer: http://localhost//other.html
Accept-Language: zh-cn
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)
Host: localhost:8080
Content-Length: 9
Connection: Keep-Alive