PHP Programming Tutorial – Creating A Simple MySQL Login Form

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In this tutorial we will be building a very simple login form using PHP and MySQL. Please note that this is very basic and I am not applying and security features to this tutorial. I will be covering a more advanced login system in future tutorials.

Source code is located on my website under the “Code Bank” section.


Reinis Barzdins says:

Very Easy,Very Fast,Very Effective,…..Like,Subcribe !

Kistlak Rajapaksha says:

Thank You Very Much !! 😀

Symi Khan says:

please help me to correct this error
Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in E:xampphtdocsproject 1login.php on line 16
inValid information…

Aman Bhargava says:

I had to practically scour the universe to find this gem. I learned a bunch of pointless stuff on the way, thanks so much for this tutorial.

Sa Van says:

very good teacher can make video php login to admin

Dhruv Rawat says:

Really great tutorial ,clear cut and to the point . Great Job !

Smasher says:

It would just reload the page each time i press Submit, any help?

Ruaridh Wylie says:

Excellent Tut man! I was stuck with the connection to my DB but this has cleared it up! Keep the vids coming 😀

Ahmed Khaled says:

name of the text editor ?

kO qUillion says:

Great! I’ve been pulling my hair out trying to find the most basic connection possible with least amount of files etc. almost had to go to second page! :)

Andy Varela says:

really useful and clear! you saved my ass, cheers mate!!!

Speaker Cringe says:

Somebody help me? Wouldn’t let me post my code here so I made a link:

Catalin Chira says:

Hi,could you please let me know what is wrong here . When checking it results with this error:

Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in /home/rvreau50/public_html/login.php on line 14

Line 14 is this one: if (mysql_num_rows($res) == 1) {

Thank you !

sourajit saha says:

couldn’t have been any better tutorial for a beginner :) thanks a ton , got the perfect video after so many wasted videos .

Rae Loyola says:

cant run?
help pls! thanks you. :(
< ?php $host = "localhost"; $user ="root"; $pass = ""; $db = "login"; mysql_connect($host, $user, $pass); mysql_select_db($db); if (isset($_POST['username'])) { $username = $_POST['username']; $password = $_POST['password']; $sql = "SELECT * FROM users WHERE username='".$username."' AND passsword='".$password."' LIMIT 1"; $res = mysql_query($sql); if (mysql_num_rows($res) == 1) { echo "you have successfully logged in."; exit(); } else { echo "Invalid login Information. please returnto the previous page."; exit(); } } ?>

3BingBongHand says:

PHP & MySQL with MVC Frameworks – Self-Paced

David Ashby says:

Nice tutorial, thanks.

Vinothkumar P says:

nice video understandable………………………………

Ngonnly Hun says:

eh bro what does isset mean?

Coco Martin says:

at last! good video tutorial about this topic. thank you very much sir!

Phuong Le says:

thanks you so much, love you

Sanjeet shrestha says:

Great job thanx for ur assist

Lasitha G Gunasinghe says:

If password and username are correct how i can go to next page

Tony Saint Hua says:

Hi Tim, Love your tutorial, but your official website is NOT user friendly. I can NOT find the “CODE BANK” section anywhere ?

Jim John says:

Is this way secure tho?

khmer happy says:

Hello Sir! I want to create an account for one person by using php. Could you do and post it? Thanks a lot!

cRcPS says:

Hello! It’s definitely a great tutorial! But I encountered a problem , can anyone help me?

The code I wrote seems to be perfectly fine, but for some reason it wouldn’t connect to db. The issue is that even if I use correct username and password it gives me “Invalid login information. Please return to the previous page.”

In the values of $host, $user, $pass and $db I’m 100% sure. Thanks in advance :)

< ?php $host = "localhost"; $user = "root"; $pass = ""; $db = "the allmighty one"; mysql_connect($host, $user, $pass); mysql_select_db($db); if (isset($_POST['username'])) { $username = $_POST['username']; $passwrod = $_POST['password']; $sql = "SELECT * FROM users WHERE username='".$username."' AND password='". $password."' LIMIT 1"; $res = mysql_query($sql); if (mysql_num_rows($res) == 1) { echo "You ahve successfully logged in."; exit(); } else { echo "Invalid login information. Please return to the previous page."; exit(); } } ?>



Ivo Carbajo says:

[11-Oct-2015 04:08:41 Europe/Moscow] PHP Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in /home/abumfluc/public_html/login/login.php on line 15

Wha? how do i fix that? what did i do wrong?

Việt Hoàng says:

could you tell me how to do this with PDO please, I get stuck in this :(

Edward Leung says:

Do you know how I can fix this error.. “The requested URL /Assignment 1/login.php was not found on this server.” When I typed in the username and password on the login form. Thanks in advance

Ismitha Development says:

Great tutorial but, it’s vulnerable tu a sqli?

Shahid Hiraj says:

Thank you for very informative video…

Symi Khan says:

thank you so much..
ALLAH bless you !..

Shashi Kiran says:

registration form video?

TheAngryGinger says:

really helpful

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