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PHP fsockopen 用法

在PHP中有一个函数fsockopen,它可以打开一个网络连接或者一个Unix套接字连接,看看使用方法

resource fsockopen ( string $hostname [, int $port = -1 [, int &$errno
[, string &$errstr [, float $timeout = ini_get("default_socket_timeout") ]]]] )

开启

要想使用这个函数,首先需要在php.ini配置文件中开启allow_url_open

GET请求

// Nicholas Lee www.qttc.net

// Open
$fp = fsockopen("www.qttc.net", 80, $errno, $errstr, 30);

if(!$fp){
  die($errstr);
}

set_time_limit(0);

// Header
$http = "GET / HTTP/1.1\r\n";
$http .= "Host: www.qttc.net\r\n";
$http .= "User-Agent: $_SERVER[HTTP_USER_AGENT]\r\n";
$http .= "Connection: Close\r\n\r\n";

// Send
fwrite($fp, $http);

// Response
$out = '';
while (!feof($fp)) {
  $out .= fgets($fp, 128);
}

echo $out;
fclose($fp);

POST请求

// Nicholas Lee www.qttc.net

// Open
$fp = fsockopen("www.qttc.net", 80, $errno, $errstr, 30);

if(!$fp){
  die($errstr);
}

set_time_limit(0);

// Data
$data = "Hi"

// Header
$http = "POST / HTTP/1.1\r\n";
$http .= "Accept: */*\r\n";
$http .= "Content-Type: application/x-www-form-urlencoded\r\n"
$http .= "Host: www.qttc.net\r\n";
$http .= "Content-Length: ".strlen($data)."\r\n";
$http .= "User-Agent: $_SERVER[HTTP_USER_AGENT]\r\n";
$http .= "Connection: Close\r\n\r\n";
$http .= $post; 

// Send
fwrite($fp, $http);

// Response
$out = '';
while (!feof($fp)) {
  $out .= fgets($fp, 128);
}

echo $out;
fclose($fp);

报头部分遵循HTTP协议拼接好报头就好

TITLE: PHP fsockopen 用法

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