Comments on: Ajax login validation system in PHP using jQuery

By: Lionel

Lionel — Sat, 23 Jan 2010 20:53:06 +0000

Great Script!

Any help to add the Remember Me checkbox will be welcomed

I tried to add it, but I am unable to even view if the checkbox is checked or not the ajax_login.php.

It is something stupid but I can’t find why I can’t see if it exist or not….

Any help will we be welcomed.

Thanks all and thanks for this great script

By: tugboat

tugboat — Fri, 22 Jan 2010 17:37:09 +0000

Yeah, so the only way I can get it to work is if I change line 27 of ‘ajax_login.php’ to:

if(strcmp($row['password'],$_POST['password'])==0)

Is this somehow risking the security of the site?

By: tugboat

tugboat — Fri, 22 Jan 2010 17:17:56 +0000

I don’t know why, but the md5() function isn’t de-encrypting the password when I try this.

If I change line 34 on ‘ajax_login.php’ to: echo “rejected password =”.$pass;

And add the following line between lines 21 and 22 of ‘index.html’: alert(data);

I can see that the password is still very, very encoded and therefore fails the test.

I’m really curious why this is happening, if you have any ideas.

Thank you.

By: pligg.com

pligg.com — Thu, 17 Dec 2009 19:24:56 +0000

Ajax login validation system in PHP…

Last time, I’ve showed you how to check user availability in Ajax using jQuery’s fading effect. But I’ve just shown the example without connecting the database and some people have faced problem with database connecting solution of that problem.In t…

By: MeD

MeD — Fri, 11 Dec 2009 18:26:37 +0000

Hi,
I will use it ,
thanks

By: Kit

Kit — Fri, 11 Dec 2009 08:35:51 +0000

I don’t understand why you took the approach in first checking for the user and grab the row, then compare the password.

Why didn’t you just include the password in your SELECT query statement?

$sql=”SELECT user_name, password FROM tbl_user WHERE user_name=’”.$user_name.”‘ AND password = ‘.$password.’”;

This way you don’t need to return unnecessary result set all the time if an invalid password is provided.

By: ??????? » [Web] ????

??????? » [Web] ???? — Wed, 25 Nov 2009 02:41:59 +0000

[...] Ajax login in PHP using jQuery [...]

By: paskuale

paskuale — Tue, 24 Nov 2009 08:45:16 +0000

great work … I resolve my problema with your comment (jquery trim( ));

By: Frank

Frank — Mon, 16 Nov 2009 17:43:40 +0000

Forgot the login form:

By: Frank

Frank — Mon, 16 Nov 2009 17:10:55 +0000

Nice coding but I found a bug so u can try login thousands times with not your own username.
If you fill in an username and a password you can try to hack the account. If you only fill the username you can try hundreds of passwords. If you click on the username the errorbox refreshes everytime! Not a good login for evil hackers!

roshan do you have a solution for this?

By: Gagan Shrestha

Gagan Shrestha — Wed, 11 Nov 2009 03:11:20 +0000

hello roshan,
your code looks great and simple,
i tried but some problem occured that i am unable to figure out, hope to get help from u
My probem is that whe i post the user name and password to ajax_login.php every thing woks fine and it also echoes “yes” but the data variable in the statement if(data==”yes”) in the javascript seems to be blank. when l console.log(“data:”+data) the value of the data in firebug i see that
data: is printed before “yes”
seems that my callback function is executed before the value passed is taken by the function….
some help would be appreciated..

By: edi

edi — Tue, 10 Nov 2009 16:47:14 +0000

Hello Roshan,
Thx a lot for this code which would be very helpfull. However, I am unable to run your download code properly. The validation always fails and says that login detail sucks even when I try with the good login and password. Do you know how I can fix it? Thx for your help.

By: Login With PHP, MySQL, jQuery&Validation – ???????????????????? PHP |

Fri, 06 Nov 2009 15:41:59 +0000

[...] 2. Ajax login validation system in PHP using jQuery [...]

By: Shaka

Shaka — Fri, 30 Oct 2009 14:44:07 +0000

Can this login code be altered to use a text file to store the username/password instead of a database

By: huihui

huihui — Mon, 19 Oct 2009 04:37:56 +0000

I found your articles is absolutely useful to me. But I wonder how to apply it into codeIgniter code.
It always stop at checking message box there but without post the username value to user_availability.php page. Any idea of that? Would you mind to show me how to do it? Will be appreciate if someone can help me with that. Thank you very very much.