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：
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<?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);
?>
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getpost.php的内容如下:
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<?php
echo "this is the data posted";
echo "<pre>";
print_r($_REQUEST);
echo "</pre>";
?>
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结果输出：
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this is the data posted
Array
(
[var1] => abc
[var2] => how are you , my friend??
)
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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：
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<?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($result);
?>
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getpost2.php的内容如下：
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<?php
echo "returndata<br>";
echo "<pre>";
print_r($_REQUEST);
echo "</pre>";
?>
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结果输出：
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Array ( [0] => returndata
Array
(
[web] => 'wwwbaiducom'
[pwd] => 123456
[action] => check
[pseid] => 'NDE005'
[amt] => 1
)
)
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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。
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<?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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希望本文所述对大家PHP程序设计有所帮助。