PHP 模拟登陆功能实例详解

本文实例讲述了PHP模拟登陆功能。分享给大家供大家参考，具体如下：说明：该模拟登陆实

本文实例讲述了PHP 模拟登陆功能。分享给大家供大家参考，具体如下：

说明：该模拟登陆实例仅适用于没有验证码的模拟登陆实例

该程序基本功能是，模拟登陆高校图书馆网站，并获取读者信息和借书信息。

程序截图：

目录结构：

login.php

<form method="post" class="am-form" action="judge.php">
 <label for="sid">学号:</label>
 <input type="text" name="number" id="sid" value="">
 <br>
 <label for="password">密码:</label>
 <input type="password" name="passwd" id="password" value="">
 <br>
 <div class="am-cf">
 <input type="submit" name="" value="登 录" class="am-btn am-btn-primary am-btn-sm am-fl">
 <input type="submit" name="" value="忘记密码 ^_^? " class="am-btn am-btn-default am-btn-sm am-fr">
 </div>
 </form>

judge.php

session_start();
require_once 'curl.php';
$url = "http://opac.lib.ustc.edu.cn/reader/redr_info.php";
$number = $_POST['number'];
$passwd = $_POST['passwd'];
$res = run_curl($url,$number,$passwd);
$pattern = '/<TD><span class=\"bluetext\">姓名：<\/span>(.*)<\/TD>/';
preg_match($pattern, $res,$arr1);
if(is_array($arr1)){
 $_SESSION['number'] = $number;
 $_SESSION['passwd'] = $passwd;
 $_SESSION['name'] = $arr1[1];
 echo "<script>window.location.href='index.php';</script>";
}else{
 echo "<script>history.go(-1);</script>";
}

curl.php

<?php
function run_curl($content_url,$number='',$passwd=''){
 $cookie_file = tempnam('./temp','cookie');
 $url = "http://opac.lib.ustc.edu.cn/reader/redr_verify.php";
 $ch = curl_init($url);
 curl_setopt($ch, CURLOPT_HEADER, 0);
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
 curl_setopt($ch,CURLOPT_FOLLOWLOCATION,1);
 $post_fileds = "number=$number&passwd=$passwd&select=bar_no";
 curl_setopt($ch,CURLOPT_POST,1);
 curl_setopt($ch,CURLOPT_POSTFIELDS,$post_fileds);
 curl_setopt($ch,CURLOPT_COOKIEFILE,$cookie_file);
 curl_setopt($ch,CURLOPT_COOKIEJAR,$cookie_file);
 $content = curl_exec($ch);
 curl_close($ch);
 $ch = curl_init($content_url);
 curl_setopt($ch, CURLOPT_HEADER, 0);
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
 curl_setopt($ch,CURLOPT_FOLLOWLOCATION,1);
 curl_setopt($ch,CURLOPT_COOKIEFILE,$cookie_file);
 curl_setopt($ch,CURLOPT_COOKIEJAR,$cookie_file);
 $res = curl_exec($ch);
 curl_close($ch);
 return $res;
}

index.php

<?php
 session_start();
 $number = $_SESSION['number'];
 $passwd = $_SESSION['passwd'];
 $username = $_SESSION['name'];
 if($number==''||$passwd==''||$username==''){
 echo "<script>window.location.href='login.php';</script>";
 exit();
 }
 require_once 'curl.php';
 header('Content-type:text/html;charset=utf-8');
 $url = "http://opac.lib.ustc.edu.cn/reader/book_lst.php";
 $res = run_curl($url,$number,$passwd); //通过curl抓取数据
 $pattern = '/<td class="whitetext" width="35%"><a class="blue" href="(.*)" rel="external nofollow" >(.*)<\/a>/';//正则匹配获得图书信息
 preg_match_all($pattern, $res,$book_arr);
 $booklist = array();
 $booklist = $book_arr[2]; //借阅图书列表
 //var_dump($booklist);
 $pattern = '/<font color=(red|)>(.*)<\/font>/';//正则匹配获得还书信息
 preg_match_all($pattern, $res,$date_arr);
 $datelist = array();
 $datelist = $date_arr[2]; //应归还日期列表
 $taglist = array();
 $taglist = $date_arr[1]; //标记是否超期
 //var_dump($date_arr);
?>

logout.php

<?php
session_start();
$_SESSION = array();
session_destroy();
?>
<script>window.location.href='login.php'</script>