how to login using salt hash password and logout php mysql

-signup form using salt hash sha256 for password encryption
-login verification for salt hash sha256 for password encryption
-login and logout button in dummy site
-after login make SESSION variable for show welcome guest or login user name
-Show logout button when user logged in+logout page and show/hide signup and logout button when required
for sample snippet code :
or
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[zack]

thanks a lot for this tutorial..
I wish You make as a search php using ajax or just a simple search php code to search from the Database

[Leilektsoglou]

how could I manage to stay in the same page (login.php) if my password or username is incorrect? because now we are gointg/redirected to the login_next_page.php due to the HTML: <form action="login_next_page.php" method="POST">

[kyriakosorfanakos]

Thanks a lot, Η2 ΖΟΝΕ, great tutorials. Both videos, registration and login were awesome and fully understood. I was able to replicate your method and it worked like a charm. However, when I tried to implement it on my exact website I found a peculiar error, which I was able to solve as follows...

First, the error was in the login.php file. In the "Welcome : Username/Guest" position it was always displaying "Guest", even though all credentials were checked correctly. I run some test which concluded that the error was in the "user_name" variable.

Originally you coded as... (login.php)
$row = mysqli_fetch_assoc($result);
echo "your name and password is correct";
session_start();



Apparently, the last line could not be fed with the "user_name" variable, so I changed it...

LOOK at the last line of code...


I hope this can be of an assistance.

I would really love to see how you can manage user/password activation through email, you know the gmail/yahoo... way. In those cases when the user registers, an automatic email is sent to the user, with a link to activate their account. Well, I would really love to see how can you pull this one.

Thanks again, most appreciated...keep up I've just subscribed ;)