php学生选课系统源码（含数据库脚本）

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session_start（）; 
include（“conn/db_conn.php“）;
$role=$_POST[“role“];
$username=$_POST[“username“];
$userpwd=$_POST[“userpwd“];
if （$role == “teacher“） {
    $ChkLogin = “SELECT * FROM teacher WHERE TeaNo = ‘$username‘ and Pwd = ‘$userpwd‘“; 
} else {
    $ChkLogin = “SELECT * FROM student WHERE StuNo = ‘$username‘ and Pwd = ‘$userpwd‘“; 
}

$ChkLoginResult = mysqli_query（$conn$ChkLogin）; 
$number = mysqli_num_rows（$ChkLoginResult）; 
$row = mysqli_fetch_array（$ChkLoginResult）;

if （$nu

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     文件        1289  2017-12-01 11:21  xkxt\ChkLogin.php
     目录           0  2018-12-19 14:18  xkxt\conn\
     文件         328  2017-12-01 11:04  xkxt\conn\db_conn.php
     文件         347  2017-12-01 11:05  xkxt\conn\db_func.php
     文件        1006  2016-11-20 10:41  xkxt\conn\page.php
     文件        1744  2017-12-01 11:03  xkxt\login.php
     文件         594  2017-12-01 11:28  xkxt\logout.php
     目录           0  2018-12-19 14:18  xkxt\stu\
     文件        2179  2017-12-01 11:40  xkxt\stu\CourseDetail.php
     文件        2014  2017-12-01 11:37  xkxt\stu\CourseDetail1.php
     文件        1040  2017-12-01 11:43  xkxt\stu\delCourse.php
     文件        1241  2013-05-22 15:56  xkxt\stu\SearchCourse.php
     文件        4732  2017-12-01 11:34  xkxt\stu\SearchCourse1.php
     文件        3598  2017-12-01 11:09  xkxt\stu\showchoosed.php
     文件        2735  2017-12-01 11:06  xkxt\stu\ShowCourse.php
     文件        1479  2017-12-01 11:11  xkxt\stu\takecourse.php
     目录           0  2018-12-19 14:18  xkxt\tea\
     文件        2222  2017-12-01 11:15  xkxt\tea\AddCourse.php
     文件        1405  2017-12-01 11:24  xkxt\tea\AddCourse1.php
     文件        1525  2017-12-01 11:15  xkxt\tea\CourseDetail.php
     文件         824  2017-12-01 11:15  xkxt\tea\DeleteCourse1.php
     文件        2539  2017-12-01 11:15  xkxt\tea\ModifyCourse1.php
     文件        1575  2017-12-01 11:16  xkxt\tea\ModifyCourse2.php
     文件        1322  2014-05-27 10:01  xkxt\tea\SearchCourse.php
     文件        5151  2017-12-01 11:26  xkxt\tea\SearchCourse1.php
     文件        3967  2017-12-01 11:18  xkxt\tea\ShowCourse.php
     目录           0  2018-12-19 14:18  xkxt\uploadpics\
     文件       10796  2011-03-06 22:36  xkxt\uploadpics\001.jpg
     文件        3289  2009-06-29 00:01  xkxt\uploadpics\002.jpg
     文件        8392  2009-06-29 00:03  xkxt\uploadpics\003.jpg
     文件        3377  2009-06-29 00:04  xkxt\uploadpics\004.jpg
............此处省略19个文件信息