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Fix the id number verification bug

Goldenbwuoy 2021-12-13 12:00:06 +08:00
parent f4ffcdd47b
commit dd75c24a30
2 changed files with 20 additions and 22 deletions
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34
Script.php
View File

@ -34,39 +34,37 @@ function is_valid_student_number($student_id)
}
// ############################### SIGN UP ##################################
if (!empty($_POST["frm_signup_1"])) {
if (!empty($_POST["form_signup"])) {
$student_id = trim(mysqli_real_escape_string($con, $_POST["student_id"]));
$student_id = trim(mysqli_real_escape_string($con, $_POST["user_student_id"]));
// validate student number
if (!is_valid_student_number($student_id)) {
$_SESSION["info_signup1"] = "Invalid student number.";
header("Location: index.php");
$_SESSION["info_signup"] = "Invalid student number.";
header("Location: signup.php");
return;
}
// Check if this student number is a legal one
$result = mysqli_query($con, "SELECT * FROM `students_data` WHERE Student_ID='$student_id'");
if (mysqli_num_rows($result) == 0) {
$_SESSION["info_signup1"] = "Your entered student number could not be verified. Please contact Student Management Office <lanhui at zjnu.edu.cn>. Thanks.";
header("Location: index.php");
$_SESSION["info_signup"] = "Your entered student number could not be verified. Please contact Student Management Office <lanhui at zjnu.edu.cn>. Thanks.";
header("Location: signup.php");
return;
}
$result98 = mysqli_query($con, "SELECT * FROM `users_table` WHERE Student_ID='$student_id'");
if (mysqli_num_rows($result98) == 0) {
$_SESSION['user_student_id'] = $student_id;
// Check if the student number isn't already registered
$student_result = mysqli_query($con, "SELECT * FROM `users_table` WHERE Student_ID='$student_id'");
if (mysqli_num_rows($student_result) > 0) {
$_SESSION["info_signup"] = "This Student ID is already in use! Please contact Student Management Office <lanhui at zjnu.edu.cn> for help.";
header("Location: signup.php");
return;
} else {
$_SESSION["info_signup1"] = "This Student ID is already in use! Please contact Student Management Office <lanhui at zjnu.edu.cn> for help.";
header("Location: index.php");
return;
}
}
// ############################### CREATE STUDENT USER ##################################
if (!empty($_POST["frm_signup_2"])) {
if (!empty($_POST["form_signup"])) {
$fullname = mysqli_real_escape_string($con, $_POST["fullname"]);
$student_id = mysqli_real_escape_string($con, $_POST["user_student_id"]);
$email = mysqli_real_escape_string($con, $_POST["email"]);
@ -79,7 +77,7 @@ if (!empty($_POST["frm_signup_2"])) {
// check confirmed password
if (strcasecmp($password, $confirmpassword) != 0) {
$_SESSION['info_signup2'] = "Password confirmation failed.";
$_SESSION['info_signup'] = "Password confirmation failed.";
$_SESSION['user_fullname'] = null; // such that Header.php do not show the header information.
header("Location: signup.php");
return;
@ -87,7 +85,7 @@ if (!empty($_POST["frm_signup_2"])) {
// validate email
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
$_SESSION['info_signup2'] = "Invalid email address.";
$_SESSION['info_signup'] = "Invalid email address.";
header("Location: signup.php");
return;
}
@ -100,7 +98,7 @@ if (!empty($_POST["frm_signup_2"])) {
// check for strong password
if (!$containsAll) {
$_SESSION['info_signup2'] = "Password must have at least characters that include lowercase letters, uppercase letters, numbers and sepcial characters (e.g., !?.,*^).";
$_SESSION['info_signup'] = "Password must have at least characters that include lowercase letters, uppercase letters, numbers and sepcial characters (e.g., !?.,*^).";
header("Location: signup.php");
return;
}
@ -109,7 +107,7 @@ if (!empty($_POST["frm_signup_2"])) {
$result = mysqli_query($con, "SELECT * FROM users_table WHERE email='$email'");
if(mysqli_num_rows($result) != 0)
{
$_SESSION["info_signup2"]="Email address ".$email." is already in use.";
$_SESSION["info_signup"]="Email address ".$email." is already in use.";
$_SESSION['user_fullname'] = null;
header("Location: signup.php");
return;

8
signup.php
View File

@ -18,7 +18,7 @@ include 'Header.php';
<div class="panel-body">
<form method="post" action="Script.php" id="signup_form">
<input type="hidden" name="frm_signup_2" value="true" />
<input type="hidden" name="form_signup" value="true" />
Full Name
<input type="text" name="fullname" placeholder="Your full name" class="form-control" value="<?php echo $_SESSION['user_fullname']; ?>" required="required" id="full_name"/>
@ -37,9 +37,9 @@ include 'Header.php';
<input type="submit" class="btn-primary" value="Sign up" id="signup_btn">
<?php
error_reporting(E_ALL);
if (isset($_SESSION['info_signup2'])) {
echo '<hr><div class="alert alert-danger" role="alert">' . $_SESSION['info_signup2'] . '</div>';
$_SESSION['info_signup2'] = null;
if (isset($_SESSION['info_signup'])) {
echo '<hr><div class="alert alert-danger" role="alert">' . $_SESSION['info_signup'] . '</div>';
$_SESSION['info_signup'] = null;
}
?>
</form>