Simple User Registration & Login Script in PHP and MySQLi

Demo Download

Today i will share Simple User Registration & Login Script in PHP and MySQLi, i will explain the basic functionality of registration and access secured area. In this tutorial user can register, login to member secured area and logout.

I am using PHP 5.6 for this tutorial, i didn’t check this tutorial on PHP 7, kindly make sure you are using PHP 5.6 to avoid any unexpected error.

Steps to Create Simple User Registration & Login Script in PHP and MySQLi

  1. Create a Database
  2. Create a Database Table with Following Five Fields:
    id, username, email, password, trn_date
  3. Create a Registration Form
  4. Create a Login Form
  5. Connect to the Database by using PHP
  6. Authenticate Logged in User
  7. Create Index Page
  8. Create Dashboard Page
  9. Create a Log Out
  10. Create a CSS File

1. Create a Database

To create a database, login to phpmyadmin and click on database tab, enter your database name and click on create database button or simply execute the below query. In my case i created database with the name register.

2. Creating a Database Table

To create table, execute the below query in SQL.

3. Creating a Registration Form

Simple create a page with name registration.php and paste the following code in it.

registration-php

4. Creating a Login Form

Create a page with name login.php and paste the following code in it.

login-php

5. Connect to the Database

Create a page with name db.php and paste the below code in it.

6. Authenticate Logged in User

Create a page with name auth.php and paste the below code in it.

7. Creating Index Page

Create a page with name index.php and paste the below code in it.

secured-area

8. Creating Dashboard Page

Create a page with name dashboard.php and paste the below code in it.

dashboard

9. Creating a Log Out

Create a page with name logout.php and paste the following code in it.

10. Creating a CSS File

Create a page with name style.css and paste the below code in it.

Note: In this tutorial CSS file is placed in css/style.css folder. So make sure that you also placed CSS file in the same css folder.

Click here to Insert, View, Edit and Delete Record from Database Using PHP and MySQLi

Click here to Forgot Password Recovery (Reset) using PHP and MySQL

Demo Download

If you found this tutorial helpful so share it with your friends, developer groups and leave your comment.

Article By
Javed Ur Rehman is a passionate blogger and web developer, he loves to share web development tutorials and blogging tips. He usually writes about HTML, CSS, JavaScript, Jquery, Ajax, PHP and MySQL.

250 Comments

  1. if($result){
    echo ”
    You are registered successfully.
    Click here to Login“;
    }
    }else{
    ?>
    getting issue in this part when i try to enter details and make registration it shows nothing a blank page opens up, facing problem here, reply me asap

  2. Warning: session_start(): Cannot send session cookie – headers already sent by (output started at /storage/ssd2/379/3566379/public_html/display/auth.php:7) in /storage/ssd2/379/3566379/public_html/display/auth.php on line 9

    Warning: session_start(): Cannot send session cache limiter – headers already sent (output started at /storage/ssd2/379/3566379/public_html/display/auth.php:7) in /storage/ssd2/379/3566379/public_html/display/auth.php on line 9

    Warning: Cannot modify header information – headers already sent by (output started at /storage/ssd2/379/3566379/public_html/display/auth.php:7) in /storage/ssd2/379/3566379/public_html/display/auth.php on line 11

      1. Actually, i am a teacher to teach web technology this is really amazing and very easy code to understand and mainly many student easily does this project and understood well

  3. Good evening

    This is nice, i have a issue where i submit and the page just goes blank and nothing gets insert into the SQL
    Some up please!!

  4. Hi, how if your system is growing and have 10k-50k users, will you experience performance issue with your retrieving query/ DB design for the login part as your pk is user id only?

  5. Hi!,I really like your writing so a lot! share we communicate more approximately your article on AOL? I need a specialist on this area to unravel my problem. Maybe that is you! Taking a look forward to peer you.

  6. Hi! I have placed the style.cc in the /css/ folder but the css file doesn’t seem to work.

  7. While using Safari, when clicking in the first field in registration.php, it logs in instead of giving the opportunity to fill the following field. Why?

    1. Well there is nothing additional script which may arise when using different browser, i wounder i never saw something like this before in my code. I will be better if you can share any live URL if you have so that we can have a look on it.

  8. Hi, maybe a stupid question, but is simply setting $_SESSION[‘username’] secure? What if a malicious person would brute-force try setting $_SESSION with random usernames, and it finds a real username, it could just login bypassing password check?

    1. HI Laurens, there are many security measures that you should take, purpose of this tutorial is to keep it simple so that everyone can understand how it works, this is not for production use, you will need to do more security checks to implement any user registration system.

  9. Hello Javed This is really helpful!

    However I have something that I think you can help me out with, How can I can I get the data that imported to my server in my email as a list of all the registration.
    Thank you!

    1. Dear Nural, i am afraid that i do not have any such system right now, but may be if i get some spare time i will share some helpful tutorial related to it.

      1. why my coding appear like this :

        Error in inserting data due to Column count doesn’t match value count at row 1

        1. Check column in your database table and in your query. There is either miss match of column count or you may be skipping comma (,) or (`) in your sql query, check your query clearly.

  10. Hi, great work everything works, but I would like to add an image. In my db I have the path to it (i’m working on localhost). But when i try to display it on my webpage, the broken image appears.
    If you could help me a bit

    1. Hi Andrej, thanks for liking my tutorial.
      Kindly check these things
      1. Make sure your image file exist in your image file location
      2. Check your image file extension is correct.
      3. Also check url of image in your source code, copy and paste the image url in new tab to view is image viewing in new tab or not. If image is not working in new tab then you must check is file really exist in that directory.
      Hope this help you.

  11. while testing, my error message “incorrect username/ password” doesn’t show at the top of my form, but instead, it shows on a new page. please help

    1. Well as you can see i am checking it on same page, so it is not possible to open this message on new window, however there may be some virus at your system which is opening new tab. I suggest you to register with simple user and password, also make sure that your registration data is in database.

      1. Thank you so much sir for the demo code…..its perfect.
        I am having a challenge with phpmailer, i edited the code that before registration details are stored unto my db, i need to verify the user email…plz help

  12. Hi my dear friend,

    i’ve been having an issue, when i try to login i put my user and pass but it does not do anything, i already checked my connection to DB and it’s all right.

  13. Hello,

    I’ve read in many places not to use md5, being to easy to reverse process, therefore giving access to the database content to people with bad intentions. What about salt?

    Also, some suggest using mysqli_real_escape, while others suggest PDO, and MANY others suggest using both. No protection is 100% injection safe. What do you think?

    And as many have mentionned, it would be nice to check if the user already exists, followed by an offer to re-send the validation email.

    Thanks for the follow up

  14. Hi Javed,
    got this error on index.php page:

    [09-Feb-2018 10:18:02 UTC] PHP Warning: Cannot modify header information – headers already sent by (output started at /public_html/mini/auth.php:2) in /public_html/mini/auth.php on line 5

    keep getting this error. Login page is perfect. but when i am not logged in. Index page is not redirecting to Login page.

    1. include(“auth.php”); is created to check and redirect if user is not logged in.
      I have placed this file at the top of index.php.
      It is working fine, but if you are still getting issue, i would recommend to check it on PHP 5.4. If this is version issue.

    2. session_start() must be at the top of your source, no html or other output before!
      you can only send session_start() one time
      better to do it this way if(session_status()!=PHP_SESSION_ACTIVE) session_start()

  15. I’m really enjoying the theme/design of your web
    site. Do you ever run into any browser compativility issues?
    A couple of my blog readers have complained bout my wevsite not operating correctly in Explorer but looks great in Chrome.
    Do you have any recommendations to help fix this problem?

  16. you took everything and made it real simple to understand..thanks a lot,I would so much love to be able to communicate with you…

  17. Dear Author!
    First, thanks for the great article!!

    Wouldn’t it make sense to use
    require instead of include auth.php??
    So if for some reason, auth.php is not found/working, the script stops instead of entering wihtout authentication?
    BR Tommy

  18. I am encountering this error when logging in
    mysqli_num_rows() expects parameter 1 to be mysqli_result, boolean given in E:\xampp\htdocs\final\login.php on line 24

    and when i register then everything works fine but no message is displayed about successful login the screen is blank.

  19. salam sir register is done sucessfully but login not working saying + /username/password is incorrect

  20. Hi,
    Script works, but I’m looking for something that allow me to upload files for specific users (during registration process).

    Any ideas?
    Thank you

  21. I did everything according to tutoria, however, when I put correct “login” and”password”, which ive put into database, the “Username/password is incorrect.” pops in. I cannot find where’s there’s a problem

  22. Congrats brother, u do a nice big work
    please, check me via my email address ASAP, i have an ongoing project, but i’m stuck somehow….so i’ll appreciate to get help from you.

  23. well unfortunately for such a clear tutorial , all the visitors comments that are facing the same issue such as i am where the login.php page only loads into blank where the connection is properly connected and username and password are correct are just being ignored.
    I wish a clear answer can be provided for all of us that are not able to use this tutorial and will move on to the next google search on how to set this up

    thank you for your effort ,

    1. Hi! Wouldn’t it make sense to use
      require instead of include auth.php??
      So if for some reason, auth.php is not found/working, the script stops instead of entering wihtout authentication?
      BR Tommy

  24. I’ve been getting the following error when trying to register:
    Notice: Undefined variable: con in D:\xamp\htdocs\registration.php on line 21

    Warning: mysqli_real_escape_string() expects parameter 1 to be mysqli, null given in D:\xamp\htdocs\registration.php on line 21

    The lines are:
    <?php
    include 'db.php';
    // If form submitted, insert values into the database.
    if (isset($_REQUEST['username'])){
    $username = stripslashes($_REQUEST['username']); // removes backslashes
    $username = mysqli_real_escape_string($con,$username); //escapes special characters in a string

    (No modifications to your code)
    Could you help me, Javed?

    1. As you can see it is connection error, kindly make sure that your connection is established, $con variable is defined in db.php. Please enter your database credentials here to get connected with database, such as username, password, host. Check db.php file.

  25. Hi Javed nice eg for new in php.

    In your demo page invalid error show on same page on top login form but when i try its show error login page but not showing login form. Can you help me.

  26. I would like to know which part of the code that hide the password during the input ? Which part of the coding change the password input into **** during login and registration form. Thank you.

  27. Sir, can you please tell me where is “script” which is Pop Up if password is not entered?
    I can’t find it in any file.

  28. Hi how would i add it so if i wanted a status on mine and say Admin and Members options and if your an admin if shows admin and if your not it shows no link?

    1. You can do this, all you need to do is check another check which you will create. for example create another column with name admin and INSERT 0 in that column if member is registering and 1 if Admin, normally we do not create admin through portal, we directly add admin from MySQL and enable registration option for members only.
      So to view file just check if user admin value is 0 or 1. If 1 then show files.

  29. Thanks for your tutorial. You code works fine. Keep up the good works. I added some other field to the form. I added First Name, Last Name and age. I want to fetch the whole of the data from the database from each row. This mean each data will be fetch from each column in a row. I want the result to display on index.php please what is the code i will add for this function and which page will i place the code? Thank you, God bless

  30. This is very usefull code thanks a lot. But i Have a problem if iam trying add a another field in registration form it shows black page please help me out from this

  31. hi, thanks for this tuto

    i’m in local
    i don’t understand something about password

    when u register, u write/choose ur own password
    but in the BDD, there is very complicate password… not the same i choose when i register

    so :
    this complicated password is sent to our email when i registered ??
    or, if is not this
    how can i add/replace MY own password in the BDD ??

    1. Adding password without encryption is not good practice, this also include the privacy of user, but if you just want to see the same password in db only for testing purpose, you can just remove md5() function from code.

  32. Solved the issue with replacing session_start() to ob_start() and put ob_flush() before last } … like

    //session_start();
    ob_start();
    require(‘../inc/conn.php’);
    include(‘include/siteRootAdmin.php’);

    and

    hope this will helpful to everybody facing the header issue. 🙂

  33. login.php not redirecting to index.php on server showing blank page, but it is working on localhost. what to do to make it work on server?

  34. Hello, i feel that i noticed you visited my weblog thus i came to go back the favor?.I am trying to find issues to improve my web site!I assume its adequate to use some of your ideas!!

  35. it is not working in my additional pages.
    it is working in only my home page.
    for example when i opened localhost/saghar then it worked correct but when i opend localhost/saghar/contact.php it does not worked. i gave it 4/5 stars because i knew solution for it.

  36. hi sir, thank you very much for your help/…every thing is work,but i can’t add another user,in registration…

    1. i downloaded the demo files but when i import it to my website it loads but when i try to sign in it says cant find database how do i create database with thedemo files i downloaded

  37. I’ve solved the issue everyone is having (after login). Here is how you fix it in 2 simple steps.

    Take the Login.php code and move the HTML part in the top down to below the php code. (Note: PHP code must be in the top in order for the redirect to work). Also, add your URL into the redirect URL line: (see below).

    <?php
    require('db.php');
    session_start();
    // If form submitted, insert values into the database.
    if (isset($_POST['username'])){
    // removes backslashes
    $username = stripslashes($_REQUEST['username']);
    //escapes special characters in a string
    $username = mysqli_real_escape_string($con,$username);
    $password = stripslashes($_REQUEST['password']);
    $password = mysqli_real_escape_string($con,$password);
    //Checking is user existing in the database or not
    $query = "SELECT * FROM users WHERE username='$username'
    and password='".md5($password)."'";
    $result = mysqli_query($con,$query) or die(mysql_error());
    $rows = mysqli_num_rows($result);
    if($rows==1){
    $_SESSION['username'] = $username;
    // Redirect user to index.php
    header("Location: http://YOURWEBSITEURL/index.php&quot;);
    }else{
    echo "
    Username/password is incorrect.
    Click here to Login“;
    }
    }else{
    ?>

    Login

    Log In

    Not registered yet? Register Here

  38. Javed works great on first go! Now just gota read through the code to figure out your logic. Thx again

  39. Hi Javed

    This is brilliant. For a beginner to understand this it is purely simple and easy to understand code.
    I have used everything as shown, just changed to suit my database and parameters.
    The registration works perfect.

    I had some problems with the login page however.
    First, due to the md5 for password somehow it was reading the key stored in the database. I changed that and that is solved.
    The second issue which i am unable to solve which is actually a repeat by some other comments above, is the redirect after login to the index page where it would show the username based on the session.

    i havent touched your code.

    $query = “SELECT * FROM userdata WHERE username=’$username’ and
    password=’$password'”;
    $result = mysqli_query($con,$query) or die(mysql_error());
    $rows = mysqli_num_rows($result);
    if($rows==1){
    $_SESSION[‘username’] = $username;
    header(“Location: index.php”); // Redirect user to index.php
    }else{
    echo “Username/password is incorrect.
    Click here to Login“;
    }

    The header attribute doesnt redirect to index page to show the Welcome “username”.
    It just reloads the login.php page and remains blank.

    However if i manually navigate to index.php it shows be the details.

    Your views please.

    Thanks
    Hussain

    1. You need to push the login script to the very very top of the page, it can’t be below anything else. It’s a header…

  40. Sir, thanks for the help, but my registration page isn’t connecting to the my database via php myadmin… Pls need urgent reply

  41. hi Javed. this is great tutorial indeed and is simple to understand but one more problem: when do u promise to show us the reset password tutorial? apart from this, I liked your tutorial

  42. Notice: Undefined index: email in C:\xampp\htdocs\DASH\registration.php on line 13
    You are registered successfully.

    Click here to Login

  43. Thanks for perfectly simple example, it’s exactly what I needed. Almost 🙂
    Though, I want to use it only as an addition to another website, yet it insists to make user log in before they can enter main index file.
    Is there a simple way to change this?

    1. I think I figured out – if not logged in, it should redirect to homepage, and not login page.

      if ( !isset( $_SESSION[ “username” ] ) ) {
      header( “Location: index.php” );
      exit();
      }

  44. Hi Javed greetings thanks alot. thanks alot for your tutorial. it really helps… hope i can change the form action to the register.php in my web host?

  45. Thank you for your good work.
    But after registration and login, I only get a blank page.
    If I open index page when I log in, I’ll think so
    BUT, you want to get to index.php directly when you log in.
    This does not help
    Session_start ();
    Require (‘db.php’);

  46. Hi Javed. First of all thanks for the whole tutorial…but after i successful login, it just refresh the login.php but with a totally blank…is it any php tutorial for the connection after login? and after the registration…the data that i key in was not exist in the database…

  47. thank you i have neen using this for some time both versions . recently the <5.5 version has curiously stopped working. i cannot discover if it is a php upgrade or not as my hosting has changed. version now is 5.4.45. shame i love the simplicity of this script

    1. “Warning: session_start() [function.session-start]: Cannot send session cookie – headers already sent by (output started at C:\xampp\htdocs\xampp\seva1\login.php:9) in C:\xampp\htdocs\xampp\seva1\login.php on line 10

      Warning: session_start() [function.session-start]: Cannot send session cache limiter – headers already sent (output started at C:\xampp\htdocs\xampp\seva1\login.php:9) in C:\xampp\htdocs\xampp\seva1\login.php on line 10”

  48. Hi am just using your registration codes, it works well but the datas username,email, password is not showing under my phpmyadmin databse.

  49. I tried to run this on my apache server and when I navigated to the registration page all I got was a blank page. Do you know where I need to save the css file or can I just change the code to include the filepath? Also do I keep or remove all the quotations in the code?

    1. inside the db.php file —-$con = mysqli_connect(“localhost”,”root”,””,”register”); inplace of root you should write your database name and insside “” it is for password and inplace of register you need to place your table name

  50. I’m no expert with PHP, but I do know that md5 is totally unsafe. Shouldn’t be used for anything you care about. Aren’t there better built in PHP functions for encrypting passwords? Also, what about prepared statements SQL queries?

  51. Hello Javed,
    Thank You for posting such a wonderful blog!!!
    Masha Allah…
    Way to go!!!

  52. hi, I receive the following errors while trying to register a user.

    Notice: Undefined variable: con in C:\wamp64\Xamp\htdocs\Register\registration.php on line 19

    Warning: mysqli_real_escape_string() expects parameter 1 to be mysqli, null given in C:\wamp64\Xamp\htdocs\Register\registration.php on line 19

    Notice: Undefined variable: con in C:\wamp64\Xamp\htdocs\Register\registration.php on line 21

    Warning: mysqli_real_escape_string() expects parameter 1 to be mysqli, null given in C:\wamp64\Xamp\htdocs\Register\registration.php on line 21

    Notice: Undefined variable: con in C:\wamp64\Xamp\htdocs\Register\registration.php on line 23

    Warning: mysqli_real_escape_string() expects parameter 1 to be mysqli, null given in C:\wamp64\Xamp\htdocs\Register\registration.php on line 23

    Notice: Undefined variable: con in C:\wamp64\Xamp\htdocs\Register\registration.php on line 27

    Warning: mysqli_query() expects parameter 1 to be mysqli, null given in C:\wamp64\Xamp\htdocs\Register\registration.php on line 27

  53. Hi Javed

    This warning message appear when i am opening php file on local host.

    Warning: mysqli_connect(): (HY000/1049): Unknown database ‘register’ in /Applications/XAMPP/xamppfiles/htdocs/db.php on line 8
    Failed to connect to MySQL: Unknown database ‘register’

    What should i do next?

    Thanks
    Sandeep

    1. Dear Sandeep, i would suggest you to create database with name register in your phpmyadmin, this error means it is not able to connect with DB, or you check your username or password.

  54. WOW.
    I just came by this simple registration using PHP/MYSQLI
    It is lovely and a really helpful aid to newbies like me.

    I really wished you could do some advanced user registration tutorial that checks for duplicate users details during registration and validation of fields.

  55. I like your system. Can I add to the registration form a field that accepts a registration number (sent to the user in advance) that validates the number from a database list and then, if valid, continues with the rest of the registration process?
    If so, can the login part of the script then give access to the private folder, or does yet another script have to exist on every html page within the private folder for each page to be accessible?

    1. Well tom, i actually didn’t get you clearly, but if you want to give registration unique no. or id then you can simply fetch the user id and give it to user, and giving access to private folder can be possible but it will be more advance feature, and currently i didn’t write any tutorial about it.

  56. Hi Javed, nice prog. Works OK on my Linux setup. I would suggest in order to increase password security (at least for those who use passwords in Xampp or other database setup and including phpmyadmin, to put the db.php file outside the webroot. In other words put the file in the user root in a directory called ext_include and call that in the login and registration php files as follows ‘require’/ext_include/db.php’; This means that web users cannot readily discover the phpmyadmin (database0 password.
    I have altered it for my own set-up. I will when ready with other small modifications let you know to benefit all.#Well done on this, it saved me a few days headaches and paracetamols. Thanks

    1. Yes you are right, but what i tried here, i simple explain how things work, obviously there is much things for improvement but that should be deal in the later stage, my focus was only to tell the newbie how it actually works 🙂 thanks for your input.

  57. how can I add details to my registration page I mean something like age sex state likes dislikes or for them to choose between security question and all that please how do I go about it

    thanks your tutorial is awesome keep it

  58. when I do the copy paste of what u have instructed it works but I can’t login using the same codes in my other db, but I can register, and when I try to login after registration it shows incorrect username/password even though my username and password are correct….by the way I’ve changed db name in db.php, table name in login.php and registration.php..where should I correct more…plis help!!! presentation nearby 🙂

    1. Sorry for the late reply, i was busy in some other tasks, well i think there may be some issue related to DB connection, you should try to connect db first, if you are changing it, and make sure if you register then its data is in database.

  59. Hi Mr. Javad the code is not complete please I want you to send the code the complete codes of all the attributes in a PDF format into my email please thanks… daniel@**** and may I ask a question…
    Do you know how to design/program a website confirmation like mmm or any ponzi scheme that when any one registers it send activation to some other user?

    1. Dear Danny, the code is complete according to the title of web page, this is simple user registration and currently i didn’t write any tutorial which send activation code.

  60. Goodevening Javed, thanks for the script. I am creating a volunteer website. Assuming I have 10 volunteers who have registered for the program (user-id 1-10), how can I echo the details of user-id 5 (name, phone number and department) to show on the dashboard of user-id 3 and vice-versa. Thanks.

  61. Very good tutorial!
    But I have problem:
    “Warning: session_start(): Cannot send session cookie – headers already sent by (output started at /auth.php:8) in /auth.php on line 9”
    Each file is saved without BOM (UTF-8 BOM). Only UTF-8. What can I do?

  62. I used code in your download but i kept seeing this?

    Warning: session_start() [function.session-start]: Cannot send session cookie – headers already sent by (output started at C:\xampp\htdocs\simple-user-registration-login\auth.php:8) in C:\xampp\htdocs\simple-user-registration-login\auth.php on line 9

    Warning: session_start() [function.session-start]: Cannot send session cache limiter – headers already sent (output started at C:\xampp\htdocs\simple-user-registration-login\auth.php:8) in C:\xampp\htdocs\simple-user-registration-login\auth.php on line 9

    Warning: Cannot modify header information – headers already sent by (output started at C:\xampp\htdocs\simple-user-registration-login\auth.php:8) in C:\xampp\htdocs\simple-user-registration-login\auth.php on line 11

  63. hiiii javed sir i’m very worried about my final year project if you have Online Shopping portel code please send me on my gmail account…
    viju….

  64. I like your code and it seems it will work well. I am having an issue on all pages like registration and login, where when i fill in the information and click on the button, it just reloads the page. No error, no successful message and the database is not updated. I can use INSERT INTO and it will insert into the database so I know it is connected, but it will not do it when i use the register button

    1. Hi Randy, i think you should first check that is your database is connected or not?
      Just create a simple file of DB connection and echo connected if DB is connected else show error.

  65. Javed; Great Work!

    Any way to add:

    1) That the member registered account expired one year after created?

    2) Registration Code field – a registration code that we will print and provide to the users and when they register need to put on the registration form to validate their account.

    Thanks in advance!

    1. Thanks Samuel,
      Well yes you can create expire date field and enter value in it using date() function, you can enter any date you want, just Google it and you will have lots of date formats along with future dates.
      and for registration code i actually didn’t get you clearly but if you are saying that user will provide registration code which is provide to them manually, then you can simply compare any field using any value either in database or in PHP page if registration code is similar. Otherwise you will need to create another table in DB add all the Reg. Code there and find the user provided code in the table first, if it matches then proceed to register.

  66. Hi Javed,
    When I try to register it gives me this error msg: “Failed to connect to MySQL: Access denied for user ‘root’@’localhost’ (using password: NO)”
    ,so what can I do to fix that??
    Thanks in advance

  67. hi, i cant figure why after i try success register, when i try to login it either give me error message username/password incorrect and blank page, wasnt it suppose to go to index.php? help me.

  68. I have used the code in the download file that you provided. I keep getting this when I login:

    Warning: session_start(): Cannot send session cache limiter – headers already sent (output started at /public_html/login.php:9) in /home/s1541/public_html/login.php on line 11

    Warning: Cannot modify header information – headers already sent by (output started at /home/s1541/public_html/login.php:9) in /home/s1541/public_html/login.php on line 28

  69. Hi Javed,

    Thank you for this simple script and i was able to learn much, but i would like to ask about this part

    require(‘db.php’);
    if (isset($_REQUEST[‘username’])){
    $username = stripslashes($_REQUEST[‘username’]);
    $username = mysqli_real_escape_string($con,$username);

    the username on the if line, whenever i change it the script would stop working/not redirect to any page and i would like to know how does it work or if it does grab something from the db.php, thank you

    1. As you can see that form is submitting on the same page, i am checking here that if this field is filled, which means that form is submitted then perform the actions mention in the parenthesis {}.

  70. thanks bro
    i made with your support
    stil i need to learn php advance can you tell me how to learn it

    1. Well i suggest you to start working with an organization so that they can assign you task, you will learn more when you will have tasks. You can search your queries on Google.

  71. Hi Javed,

    This script is simple and straight to the point. Thank you.

    Everything works wonderfully on my site, however, I am having one issue where after login the login.php does not redirect to index.php. So after a successful login, the page refreshes login.php and it is blank. If I manually go to the index.php the session is open and the users info will display correctly. Can you help with the redirect on login to index?

    1. Try to register with plain user and password, like
      username: user
      password: pass

      If your issue is resolved then just simply check mysqli_real_escape_string() function because it escape special characters in variables.

  72. This helped me out! Thanks!
    One small thing I’ve added is an link back from register to login, for users that didn’t want to register but expediently clicked on it.
    Thanks!

  73. Hello javed
    Thank you for sharing this post.
    It worked fine till registration and login but once i registered my self and use the login and password which i have created using registration page it doesn’t redirect to index page but gives this error

    Cannot modify header information – headers already sent by (****/****/public_html/myaccount/register/login.php:11) in /****/****/public_html/myaccount/register/login.php on line 28

      1. I am getting the same message when I try to login.
        ………….. Code is Skipped
        This is the message that i keep getting after logging in:
        Warning: Cannot modify header information – headers already sent by (output started at /home/soiree/public_html/Login/login.php:43) in /home/soiree/public_html/Login/login.php on line 60

  74. Hi Javed, first i would like to tell thanks to you!! The code is going fine upto login page when i enter correct username and password it shows incorrect username or password.

    1. Hi Shamanth thanks that you find it helpful, if you are talking about demo link then i have place there demo user and password, you can login only with that one, or if you have set it up on your local server then you should check after registration that is your registration is going into database? If not then you should enable your local phpmyadmin. Or you can try it online if you have any hosting available.

  75. This is exactly what I needed for my existing website. I’m smart enough to figure how to add more required fields and insert the info to my db. However, is there an easy way for me to display a username on a page? As in “Hi [username], welcome to my site”.

  76. Dear Mr. Javed,

    Thank you for your good work. I need a full payment system script for my small business where my customers can login and make and receive payments. Is this possible

    1. Dear Mark, i am glad that you like it, but for payment system there are various options it depends that which option you want to use, like PayPal, or any other payment method. Script for payment will be vary according to your and payment service provider needs.

  77. Great tutorial! However, it worked fine for me at first but now when I try to register a blank page just appears. Any ideas?

    1. It seems like after clicking on register button you are getting error, although you can see in my code that if form is submitted it must show either error or successful message, if you can explain it in more detail so may i can i figure out what is actually issue you are facing, are you doing it local server or on host? try it host if you are facing issue in local server, may be problem in your local server or not configured properly.

      1. Cheers for the reply. When i attempt to register a user the error or successful message doesn’t load, the page just appears blank. It’s on host just now and I still can’t figure out the error

        1. Try to register with plain user and password, like
          username: user
          password: pass

          If your issue is resolved then just simply check mysqli_real_escape_string() function because it escape special characters in variables.

      1. Hello Javed. Your tutorial and code is awesome. pls can you help implement the query that checks during sign up if a user already exists in the database table; and if it does, the form should display an error message. Thank you so much.

  78. I have tried to make it work but any page that calls the auth.php file seems to just output the code onto the page and not show what it should.

  79. Mr. Javed good day I am Isah from Nigeria I have experienced difficulties in running your code on notepad++ please send the way out through ******

    1. This is Wright Ian, The code works if you always used to mysqli instead of MySQL….. Try it again it works….

  80. Hi there this really help me a lot. How can i implement a function that check user if exist in registration form??

  81. I have got these 2 warnings, please help.

    Warning: mysqli_select_db() expects exactly 2 parameters, 1 given in C:\wamp64\www\fresh\db.php on line 6
    &
    Warning: mysqli_error() expects exactly 1 parameter, 0 given in C:\wamp64\www\fresh\db.php on line 8

    Please help!
    Thank you.

    1. The mysql_select_db() does not work in MySQL Improved, Try adding the database as fourth parameter….

      For example, if I’m connecting to a Db named Wright, I’ll write,

      Mysqli_connect_db(“localhost”,”root”,”password”,”Wright”)
      This works every time for MYSQLI

      1. This is the correct code Mr.Khalfay

        Mysqli_connect_db(“localhost”,”root”,”password”,”Wright”)

  82. Hello!

    I followed the directions here exactly!
    But I can’t seem to get this to connect to my database, I keep getting the code

    “Database Selection FailedAccess denied for user ‘mikereve’@’localhost’ (using password: NO)”

    At the top line of my login page.

    Please advise! 🙂

    1. You need to make sure that you are providing the correct detail for connecting database, commonly root is the user and make sure you are providing the correct password, if there is no password in your phpmyadmin so you do not need to provide password on local environment.

  83. In your registration form, what is the mechanism of user already exists in the database. The same user can be inserted any time. plz check it

    1. Thanks for stopping by, Naveed yes you are right but i didn’t use here to check is user already exist or not, i tried to explain simple registration for newbie users. Yes we can implement so many things in registration form. 🙂

Comments are closed.