本文介绍一个php实现的http请求封装类，封装了三种post提交方法和一个request请求方法，并提供了调用示例，供大家学习参考。

在php编程调试时，经常需要模拟提交。

另外，在抓取一些页面时，需要经常请求别人的页面。

于是实现了一个http请求的封装类，以方便调用。

本http请求类，封装了三种post提交方法和一个request请求方法。

1，http请求封闭类

0)

{

$this->init($params);

}

}

// -----------------------

/**

* 参数初始化

*

* @param array $params

*/

public function init($params)

{

if(count($params) > 0)

{

foreach($params as $key => $val)

{

if(isset($this->$key))

{

$this->$key = $val;

}

}

}

}

// -----------------------

/**

* 提交请求

*

* @param string $url 请求地址

* @param mixed $data 提交的数据

* @param string $type 提交类型，curl,socket,stream可选

*/

public function post($url, $data, $type = "socket")

{

if(!in_array($type, $this->post_type_list))

{

die("undefined post type");

}

$function_name = $type . "Post";

return call_user_func_array(array($this, $function_name), array($url, $data));

}

// -----------------------

/**

* 更改默认的ua信息

*

* 本方法常用于模拟各种浏览器

*

* @param string $ua_string UA字符串

*/

public function setUA($user_agent)

{

$this->ua_string = $user_agent;

return $this;

}

// -----------------------

/**

* 设置本地cookie文件

*

* 在用curl来模拟时常需要设置此项

*

* @param string $cookie_file 文件路径

*/

public function setCookieFile($cookie_file)

{

$this->cookie_file = $cookie_file;

return $this;

}

// -----------------------

/**

* curl方式提交

*

* @param string $url 请求地址

* @param mixed $data 提交的数据

* @param string $user_agent 自定义的UA

* @return mixed

*/

public function curlPost($url, $data, $user_agent = '')

{

if($user_agent == '')

{

$user_agent = $this->ua_string;

}

if (!is_array($data))

{

$data = array($data);

}

$data = http_build_query($data);

if (!function_exists("curl_init"))

{

die('undefined function curl_init');

}

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_POST, true);

curl_setopt($ch, CURLOPT_POSTFIELDS, $data);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($ch, CURLOPT_USERAGENT, $user_agent);

$rs = curl_exec($ch);

curl_close($ch);

return $rs;

}

// -----------------------

/**

* 套接字提交

*

* @param string $url 请求地址

* @param mixed $data 提交的数据

* @param string $user_agent 自定义的UA

* @param int $port 端口

* @param int $timeout 超时限制

* @return mixed

*/

public function socketPost($url, $data, $user_agent = '', $port = 80, $timeout = 30)

{

$url_info = parse_url($url);

$remote_server = $url_info['host'];

$remote_path = $url_info['path'];

$socket = fsockopen($remote_server, $port, $errno, $errstr, $timeout);

if(!$socket)

{

die("$errstr($errno)");

}

if($user_agent == '')

{

$user_agent = $this->ua_string;

}

if (!is_array($data))

{

$data = array($data);

}

$data = http_build_query($data);

fwrite($socket, "POST {$remote_path} HTTP/1.0\r\n");

fwrite($socket, "User-Agent: {$user_agent}\r\n");

fwrite($socket, "HOST: {$remote_server}\r\n");

fwrite($socket, "Content-type: application/x-www-form-urlencoded\r\n");

fwrite($socket, "Content-length: " . strlen($data) . "\r\n");

fwrite($socket, "Accept:*/*\r\n");

fwrite($socket, "\r\n");

fwrite($socket, "{$data}\r\n");

fwrite($socket, "\r\n");

$header = "";

while($str = trim(fgets($socket, 4096)))

{

$header .= $str;

}

$data = "";

while(!feof($socket))

{

$data .= fgets($socket, 4096);

}

return $data;

}

// -----------------------

/**

* 文件流提交

*

* @param string $url 提交地址

* @param string $data 数据

* @param string $user_agent 自定义的UA

* @return mixed

*/

public function streamPost($url, $data, $user_agent = '')

{

if($user_agent == '')

{

$user_agent = $this->ua_string;

}

if (!is_array($data))

{

$data = array($data);

}

$data = http_build_query($data);

$context = array(

'http' => array(

'method' => 'POST',

'header' => 'Content-type: application/x-www-form-urlencoded'

. "\r\n" . 'User-Agent : ' . $user_agent . "\r\n" . 'Content-length: ' . strlen($data),

'content' => $data

)

);

$stream_context = stream_context_create($context);

$data = file_get_contents($url, FALSE, $stream_context);

return $data;

}

// -----------------------

/**

* 发送请求

*

* 本方法通过curl函数向目标服务器发送请求

*

* @param string $url 请求地址

* @return mixed

*/

public function request($url)

{

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $url);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt($ch, CURLOPT_USERAGENT, !empty($this->ua_string)? $this->ua_string : $_SERVER['HTTP_USER_AGENT']);

curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);

if (isset($this->cookie_file))

{

curl_setopt($ch, CURLOPT_COOKIEJAR, $this->cookie_file);

}

$data = curl_exec($ch);

curl_close($ch);

return $data;

}

}

?>

调用示例：

"socket");

$rs[] = $HttpHelper->post($url, $data);

$data = array("name"=>"curl");

$rs[] = $HttpHelper->post($url, $data, "curl");

$data = array("name"=>"stream");

$rs[] = $HttpHelper->post($url, $data, "stream");

$rs[] = $HttpHelper->request($url);

print_r($rs);

?>

3，post.php文件：

4，输出结果：

Array

(

[0] => test request:Array

(

[name] => socket

)

[1] => test request:Array

(

[name] => curl

)

[2] => test request:Array

(

[name] => stream

)

[3] => test request:Array

(

)

)