使用PHP Socket 编程模拟Http post和get请求

这里给大家分享一段使用PHP Socket 编程模拟Http post和get请求的代码，非常的实用，结尾部分我们再讨论下php模拟http请求的几种方法。

<?php /** 

 * 使用PHP Socket 编程模拟Http post和get请求 

 * @author koma 

 */ class Http{ 

    private $sp = "\r\n"; //这里必须要写成双引号     private $protocol = 'HTTP/1.1'; 

    private $requestLine = ""; 

    private $requestHeader = ""; 

    private $requestBody = ""; 

    private $requestInfo = ""; 

    private $fp = null; 

    private $urlinfo = null; 

    private $header = array(); 

    private $body = ""; 

    private $responseInfo = ""; 

    private static $http = null; //Http对象单例     

    private function __construct() {} 

    public static function create() { 

        if ( self::$http === null ) {  

            self::$http = new Http(); 

        } 

        return self::$http; 

    } 

    public function init($url) { 

        $this->parseurl($url); 

        $this->header['Host'] = $this->urlinfo['host']; 

        return $this; 

    } 

    public function get($header = array()) { 

        $this->header = array_merge($this->header, $header); 

        return $this->request('GET'); 

    } 

    public function post($header = array(), $body = array()) { 

        $this->header = array_merge($this->header, $header); 

        if ( !empty($body) ) { 

            $this->body = http_build_query($body); 

            $this->header['Content-Type'] = 'application/x-www-form-urlencoded'; 

            $this->header['Content-Length'] = strlen($this->body); 

        } 

        return $this->request('POST'); 

    } 

    private function request($method) { 

        $header = ""; 

        $this->requestLine = $method.' '.$this->urlinfo['path'].'?'.$this->urlinfo['query'].' '.$this->protocol; 

        foreach ( $this->header as $key => $value ) { 

            $header .= $header == "" ? $key.':'.$value : $this->sp.$key.':'.$value; 

        } 

        $this->requestHeader = $header.$this->sp.$this->sp; 

        $this->requestInfo = $this->requestLine.$this->sp.$this->requestHeader; 

        if ( $this->body != "" ) { 

            $this->requestInfo .= $this->body; 

        } 

        /* 

         * 注意：这里的fsockopen中的url参数形式为"www.xxx.com" 

         * 不能够带"http://"这种 

         */

        $port = isset($this->urlinfo['port']) ? isset($this->urlinfo['port']) : '80'; 

        $this->fp = fsockopen($this->urlinfo['host'], $port, $errno, $errstr); 

        if ( !$this->fp ) { 

            echo $errstr.'('.$errno.')'; 

            return false; 

        } 

        if ( fwrite($this->fp, $this->requestInfo) ) { 

            $str = ""; 

            while ( !feof($this->fp) ) { 

                $str .= fread($this->fp, 1024); 

            } 

            $this->responseInfo = $str; 

        } 

        fclose($this->fp); 

        return $this->responseInfo; 

    } 

    private function parseurl($url) { 

        $this->urlinfo = parse_url($url); 

    } 

} // $url = "http://news.163.com/14/1102/01/AA0PFA7Q00014AED.html"; 

$url = "http://localhost/httppro/post.php"; $http = Http::create()->init($url); /* 发送get请求  

echo $http->get(array( 

    'User-Agent' => 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.153 Safari/537.36', 

)); 

*/

 /* 发送post请求 */ echo $http->post(array( 

        'User-Agent' => 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.1916.153 Safari/537.36', 

), array('username'=>'发一个中文', 'age'=>22));

php 模拟 http请求

方法一：利用php的socket编程来直接给接口发送数据来模拟post的操作。

建立两个文件post.php,getpost.php
post.php内容如下：

<?php

 $flag = 0;

 $params = '';

 $errno = '';

 $errstr = '';

 //要post的数据

$argv = array(

    'var1'=>'abc',

    'var2'=>'how are you , my friend??');

//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

    $fp = fsockopen("localhost",81,$errno,$errstr,10) or exit($errstr."--->".$errno);

    //构造post请求的头

    $header  = "POST /flandy/getpost.php HTTP/1.1\r\n";

    $header .= "Host:127.0.0.1\r\n";

    $header .= "Referer:/flandy/post.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);

?>

getpost.php的内容如下

<?php

echo "this is the data posted";

echo "<pre>";

print_r($_REQUEST);

echo "</pre>";

?>

结果输出：

this is the data postedArray

(

[var1] => abc

[var2] => how are you , my friend??

)

以上代码在本机81端口下已经通过测试。

方法二：

使用PHP的curl扩展或HttpClient.class.php类，这两个非常类似，下面简单的列出curl的实现代码。
两个文件post2.php和getpost2.php
post2.php的内容如下：

<?php

$psecode = 'NDE005';

$website = 'www.baidu.com';

$amt = 1;

$pwd = 123456;

$ch = curl_init();

$curl_url = "http://localhost:81/flandy/getpost2.php?web=" . $website .

"&pwd=" . $pwd . "&action=check&pseid=" . $psecode .

"&amt=" . $amt;

curl_setopt($ch, CURLOPT_URL, $curl_url);

curl_setopt($ch, CURLOPT_POST, 1);

curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//不直接输出，返回到变量

$curl_result = curl_exec($ch);

$result = explode(',', $curl_result);

curl_close($ch);

print_r($result);

?>

getpost2.php的内容如下：

<?php

echo "returndata<br>";

echo "<pre>";

print_r($_REQUEST);

echo "</pre>";

?>

结果输出：

Array ( [0] => returndataArray

(

[web] => 'wwwbaiducom'

[pwd] => 123456

[action] => check

[pseid] => 'NDE005'

[amt] => 1

)

)

方法三：

这个要借助第三方类库HttpClient可以到这里下载：http://scripts.incutio.com/httpclient/

＜?php

require_once 'HttpClient.class.php';

$params = array('web' =＞ 'www.baidu.com',

'pwd' =＞ '123456',

'action' =＞ 'check',

'pseid' =＞ 'NDE005',

'amt' =＞ 1);

$pageContents = HttpClient::quickPost('http://localhost:81/flandy/getpost3.php', $params);

$result = explode(',', $pageContents);

print_r($result);

?＞