Taking the Zhengfang Academic Affairs System as an example, use PHP to simulate logging in to capture the class schedule, empty classroom, and capture the class schedule_PHP Tutorial

//模拟登陆

    function curl_request($url,$post='',$cookie='', $returnCookie=0){

            $curl = curl_init();

            curl_setopt($curl, CURLOPT_URL, $url);

            curl_setopt($curl, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0)');

            curl_setopt($curl, CURLOPT_FOLLOWLOCATION, 1);

            curl_setopt($curl, CURLOPT_AUTOREFERER, 1);

            curl_setopt($curl, CURLOPT_REFERER, "这里一定要换成教务系统登陆的url"); //填写教务系统url

            if($post) {

                curl_setopt($curl, CURLOPT_POST, 1);

                curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($post));

            }

            if($cookie) {

                curl_setopt($curl, CURLOPT_COOKIE, $cookie);

            }

            curl_setopt($curl, CURLOPT_HEADER, $returnCookie);

            curl_setopt($curl, CURLOPT_TIMEOUT, 20);

            curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);

            $data = curl_exec($curl);

            if (curl_errno($curl)) {

                return curl_error($curl);

            }

            curl_close($curl);

            if($returnCookie){

                list($header, $body) = explode("\r\n\r\n", $data, 2);

                preg_match_all("/Set\-Cookie:([^;]*);/", $header, $matches);

                $info['cookie']  = substr($matches[1][0], 1);

                $info['content'] = $body;

                return $info;

            }else{

                return $data;

            }

    }

<input type="hidden" name="__VIEWSTATE" value="dDwyODE2NTM0OTg7Oz61eIbnKVojBioGYtg2vsy2SklwiA==">

<br />　　//登陆页面的隐藏字段<br />　　function getView(){

    $url = 'http://jw.hzau.edu.cn/default2.aspx';

    $result = curl_request($url);

    $pattern = '/<input type="hidden" name="__VIEWSTATE" value="(.*?)" \/>/is';

    preg_match_all($pattern, $result, $matches);

    $res[0] = $matches[1][0];

    return $res[0] ;

}

function login($xh,$pwd){

        $url = 'http://jw.hzau.edu.cn/default2.aspx';

        $post['__VIEWSTATE'] = $this->getView();

        $post['txtUserName'] = $xh; //填写学号

        $post['TextBox2'] = $pwd;  //填写密码

        $post['txtSecretCode'] = '';

        $post['lbLanguage'] = '';

        $post['hidPdrs'] = '';

        $post['hidsc'] = '';

        $post['RadioButtonList1'] = iconv('utf-8', 'gb2312', '学生');

        $post['Button1'] = iconv('utf-8', 'gb2312', '登录');

        $result = curl_request($url,$post,'', 1);

        return $result['cookie'];

    }

//返回课表字符串

private function classresult($xh,$pwd){

        date_default_timezone_set("PRC"); //时区设置

        $classList = "";//声明课表变量

        $cookie = $this->login($xh,$pwd);

        $view = $this->getViewJs($cookie,$xh);//验证密码是否正确

        //如果密码正确

        if (!empty($view)) {

            $url = "http://jw.hzau.edu.cn/xskbcx.aspx?xh={$xh}";

            $result = curl_request($url,'',$cookie);  //保存的cookies

            preg_match_all('/<table id="Table1"[\w\W]*?>([\w\W]*?)<\/table>/',$result,$out);

            $table = $out[0][0]; //获取整个课表

            preg_match_all('/<td [\w\W]*?>([\w\W]*?)<\/td>/',$table,$out);

            $td = $out[1];

            $length = count($td);

            //获得课程列表

            for ($i=0; $i < $length; $i++) {

                $td[$i] = str_replace("<br>", "", $td[$i]);

                $reg = "/{(.*)}/";

                if (!preg_match_all($reg, $td[$i], $matches)) {

                    unset($td[$i]);

                }

            }

            $td = array_values($td); //将课程列表数组重新索引

            $tdLength = count($td);

            for ($i=0; $i < $tdLength; $i++) {

                $td[$i] = iconv('GB2312','UTF-8',$td[$i]);

            }

            //将课表转换成数组形式

            function converttoTable($table){

                $list = array(

                    'sun' => array(

                        '1,2' => '',

                        '3,4' => '',

                        '5,6' => '',

                        '7,8' => '',

                        '9,10' => ''

                    ),

                    'mon' => array(

                        '1,2' => '',

                        '3,4' => '',

                        '5,6' => '',

                        '7,8' => '',

                        '9,10' => ''

                    ),

                    'tues' => array(

                        '1,2' => '',

                        '3,4' => '',

                        '5,6' => '',

                        '7,8' => '',

                        '9,10' => ''

                    ),

                    'wed' => array(

                        '1,2' => '',

                        '3,4' => '',

                        '5,6' => '',

                        '7,8' => '',

                        '9,10' => ''

                    ),

                    'thur' => array(

                        '1,2' => '',

                        '3,4' => '',

                        '5,6' => '',

                        '7,8' => '',

                        '9,10' => ''

                    ),

                    'fri' => array(

                        '1,2' => '',

                        '3,4' => '',

                        '5,6' => '',

                        '7,8' => '',

                        '9,10' => ''

                    ),

                    'sat' => array(

                        '1,2' => '',

                        '3,4' => '',

                        '5,6' => '',

                        '7,8' => '',

                        '9,10' => ''

                    )

                );

                $week = array("sun"=>"周日","mon"=>"周一","tues"=>"周二","wed"=>"周三","thur"=>"周四","fri"=>"周五","sat"=>"周六");

                $order = array('1,2','3,4','5,6','7,8','9,10');

                foreach ($table as $key => $value) {

                    $class = $value;

                    foreach ($week as $key => $weekDay) {

                        $pos = strpos($class,$weekDay);

                        // echo $pos;

                        if ($pos) {

                            $weekArrayDay = $key; //获取list数组中的第一维key

                            foreach ($order as $key => $orderClass) {

                                $pos = strpos($class,$orderClass);

                                if ($pos) {

                                    $weekArrayOrder = $orderClass; //获取该课程是第几节

                                    break;

                                }

                            }

                            break;

                        }

                    }

                    $list[$weekArrayDay][$weekArrayOrder] = $class;

                }

                return $list;

            }

            //调用函数

            return converttoTable($td);

        }else{

            return 0;

        }

    }

//空教室查询结果

    public function roomresult(){

        $xh = ""; //设置学号

        $pwd = "";  //学号对应的密码

        $cookie = $this->login($xh,$pwd);

        $url = "http://jw.hzau.edu.cn/xs_main.aspx?xh={$xh}";

        $result = curl_request($url,'',$cookie);  //保存的cookies

        $url="http://jw.hzau.edu.cn/xxjsjy.aspx?xh={$xh}";

        $post['Button2'] = iconv('utf-8', 'gb2312', '空教室查询');

        $post['__EVENTARGUMENT']='';

        $post['__EVENTTARGET']='';

        $post['__VIEWSTATE'] = $this->getViewJs($cookie,$xh);

        $post['ddlDsz'] = iconv('utf-8', 'gb2312', '单');

        $post['ddlSyXn'] = '2014-2015'; //学年

        $post['ddlSyxq'] = '1';

        $post['jslb'] = '';

        $post['xiaoq'] = '';

        $post['kssj']=$_GET['start'];  //提交的开始查询时间 

        $post['sjd']=$_GET['class'];//提交的课程节次

        $post['xn']='2014-2015';//所在学年

        $post['xq']='2';//所在学期

        $post['xqj']='6';//当天星期几

        $post['dpDataGrid1:txtPageSize']=90;//每页显示条数

        $result = curl_request($url,$post,$cookie,0);

        preg_match_all('/<span[^>]+>[^>]+span>/',$result,$out);

        $tip = iconv('gb2312', 'utf-8', $out[0][3]);//获取页面前部的提示内容

        preg_match_all('/<table[\w\W]*?>([\w\W]*?)<\/table>/',$result,$out);

        $table = iconv('gb2312', 'utf-8', $out[0][0]); //获取查询列表

        $this->load->view("classroom",array('tip'=>$tip,'table'=>$table));

    }