后端开发|php教程
PHP,Socket,模拟Http
后端开发-php教程
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。
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<?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""
* 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 = "/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));
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php 模拟 http请求
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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 "
";
print_r($_REQUEST);
echo "
";
?>
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 = \;
$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($result);
?>
getpost2.php的内容如下：
<?php
echo "returndata
";
echo "
";
print_r($_REQUEST);
echo "
";
?>
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：/httpclient/
＜?php
require_once HttpClient.class.php;
$params = array(web =＞ \,
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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