"); mysqli_select_db($link,"test") or die("数据库选择失败！
"); mysqli_query($link,"set names gbk"); //在users表中查找用户 $sql = "select sf,username from users where username='$username' and passwd=password('$pswd')"; $result=mysqli_query($link,$sql); $row=mysqli_fetch_array($result); //如果找到用户，设置会话变量 if (mysqli_num_rows($result) == 1) { //$_SESSION['qx'] = mysql_result($result,0,"qx"); $_SESSION['username'] = $row['username']; $_SESSION['sf'] = $row['sf'];; if($row['sf']=="student"){ echo "学生登录成功"; //header("refresh:0;url=index_student.php"); } else if($row['sf']=="teacher") { echo "教师登录成功"; //header("refresh:0;url=index_teacher.php"); }else if($row['sf']=="admin"){ echo "管理员登录成功"; //header("refresh:0;url=index_admin.php"); }else{ // header("refresh:0;url=login.html"); echo "密码错误，请重新输入！"; } } else { //header("refresh:2;url=login.html"); echo "请输入正确的账号密码"; } } } ?>
Is it because there is no database created in mysql?