Detailed explanation of fsockopen imitating post and get in php_PHP tutorial

$fp = fsockopen("www.example.com", 80, $errno, $errstr, 30);
if (!$fp) {
echo "$errstr ($errno)
n";
} else {
    $out = "GET / HTTP/1.1rn";
    $out .= "Host: www.example.comrn";
    $out .= "Connection: Closernrn";
    fwrite($fp, $out);
    while (!feof($fp)) {
        echo fgets($fp, 128);
    }
    fclose($fp);
}
?>

$srv_ip = '192.168.1.5';//你的目标服务地址.

$srv_port = 80;//端口

$url = 'http://localhost/fsock.php'; //接收你post的URL具体地址

$fp = '';

$errno = 0;//错误处理

$errstr = '';//错误处理

$timeout = 10;//多久没有连上就中断

$post_str = "username=demo&password=hahaha";//要提交的内容.

//打开网络的 Socket 链接。

$fp = fsockopen($srv_ip,$srv_port,$errno,$errstr,$timeout);

if (!$fp){

echo('fp fail');

}

$content_length = strlen($post_str);

$post_header = "POST $url HTTP/1.1rn";

$post_header .= "Content-Type: application/x-www-form-urlencodedrn";

$post_header .= "User-Agent: MSIErn";

$post_header .= "Host: ".$srv_ip."rn";

$post_header .= "Content-Length: ".$content_length."rn";

$post_header .= "Connection: closernrn";

$post_header .= $post_str."rnrn";

fwrite($fp,$post_header);

$inheader = 1;

while(!feof($fp)){//测试文件指针是否到了文件结束的位置

$line = fgets($fp,1024);

//去掉请求包的头信息

if ($inheader && ($line == "n" || $line == "rn")) {

$inheader = 0;

}

if ($inheader == 0) {

echo $line;

}

}

fclose($fp);

unset ($line);

?>