PHP模拟http请求的方法详解

时间:2021-12-10 08:42:12

本文实例讲述了PHP模拟http请求的方法。分享给大家供大家参考,具体如下:

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:

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
<?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:

?
1
2
3
4
5
6
<?php
echo "this is the data posted";
echo "<pre>";
print_r($_REQUEST);
echo "</pre>";
?>

结果输出:

?
1
2
3
4
5
6
this is the data posted
Array
(
  [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:

?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
<?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:

?
1
2
3
4
5
6
<?php
echo "returndata<br>";
echo "<pre>";
print_r($_REQUEST);
echo "</pre>";
?>

结果输出:

?
1
2
3
4
5
6
7
8
9
10
Array ( [0] => returndata
Array
(
  [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/

或者点击此处本站下载

?
1
2
3
4
5
6
7
8
9
10
11
<?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);
?>

希望本文所述对大家PHP程序设计有所帮助。