Use PHP Socket programming to simulate Http post and get requests, socketget_PHP tutorial

Use PHP Socket programming to simulate Http post and get requests, socketget

Here I would like to share with you a piece of code that uses PHP Socket programming to simulate Http post and get requests. It is very practical. At the end, we will discuss several methods of php simulating http requests.

Copy code The code is as follows:

* Use PHP Socket programming to simulate Http post and get requests
* @author koma
​*/ class Http{
    private $sp = "rn"; //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：

复制代码 代码如下:

 $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/1.1rn";
    $header .= "Host:127.0.0.1rn";
    $header .= "Referer:/flandy/post.phprn";
    $header .= "Content-Type: application/x-www-form-urlencodedrn";
    $header .= "Content-Length: ".$length."rn";
    $header .= "Connection: Closernrn";
    //添加post的字符串
    $header .= $params."rn";
   

    //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 == "rn")) {
             $inheader = 0;
        }
        if ($inheader == 0) {
          echo $line;
        }
    }

fclose($fp);
?>

getpost.php的内容如下

复制代码 代码如下:

echo "this is the data posted";
echo "

";<br>
print_r($_REQUEST);<br>
echo "

";
?>

结果输出：

复制代码 代码如下:

this is the data postedArray
(
[var1] => abc
[var2] => how are you , my friend??
)

The above code has passed the test under the local port 81.

Method 2:

Use PHP's curl extension or HttpClient.class.php class. The two are very similar. The curl implementation code is simply listed below.
Two files post2.php and getpost2.php
The content of post2.php is as follows:

Copy code The code is as follows:

$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);//Do not output directly, return to variable
$curl_result = curl_exec($ch);
$result = explode(',', $curl_result);
curl_close($ch);
print_r($result);
?>

The content of getpost2.php is as follows:

Copy code The code is as follows:

echo "returndata
";
echo "

";<br>
print_r($_REQUEST);<br>
echo "

";
?>

Result output:

Copy code The code is as follows:

Array ([0] => returndataArray
(
[web] => 'wwwbaiducom'
[pwd] => 123456
[action] => check
[pseid] => 'NDE005'
[amt] => 1
)
)

Method 3:

This requires the use of the third-party class library HttpClient, which can be downloaded here: http://scripts.incutio.com/httpclient/

Copy code The code is as follows:

＜?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);
?＞

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