can't login and can't run install.php

[Nicolas_T]

Hi, i am facing 2 problem using php now.

1. cannot login although password and username correct - after click login button, it's still remain the same page
2. can't run some install.php, after click install, it's still remain the same page

I test few example already, but it's same..

may someone tell me the reason? Thanks in advance ! 🙂

[dotnotwhat]

Without knowing what scripts you are using / have made, it's impossible for anyone to give you any assistance.

As you refer to a 'install.php' I'm presuming you are referring to a pre-packaged PHP app you want to use. If you can tell us what it is, someone may be able to point you in the direction of a solution.

[Nicolas_T]

thx, dotnotwhat, actually, i m thinking the following script got any problem or not:

session_start();
if( isset( $action ) ):
	if( $action == "logout" ):
		session_unregister( "name" );
		session_unregister( "passwd" );
		displayHeader( "Logout" );
		echo "
		<center><h4>You have logout successfully!</h4></center>
		<p align=center><a href=forum.php>$forumTitle</a>&nbsp; |&nbsp;
		<a href=$homeURL>$homeTitle</a>";
		displayFooter();
	endif;
endif;
if( isset( $name ) && isset( $passwd ) ):
	if( $name != $adminName || $passwd != $adminPasswd || $name == "" || $passwd == "" ):
		error( "Invalid username and password" );
	elseif( !session_is_registered( "name" ) && !session_is_registered( "passwd" )
	&& $name == $adminName && $passwd == $adminPasswd ):
		session_register( "name" );
		session_register( "passwd" );
		displayAdmin();
	elseif( session_is_registered( "name" ) && session_is_registered( "passwd" )
	&& $name == $adminName && $passwd == $adminPasswd ):
		displayAdmin();
	else:
		error( "Fatal error, please close your browser and try again!" );
	endif;
else:
	displayForm();
endif;

i m using php5, is it the code above only can run on php4?

Thanks in advance.. 🙂

[dotnotwhat]

I think you have a register_globals issue here. Your script is expecting POST and GET variables to be accessible from a global point of view.

Since PHP 4.2 (?) and certainly in PHP 5, register_globals directive is set to off by default. This means GET and POST variables (among others) are not accessible by just referencing the variable name. Instead, the relevant variables are put in the $GET and $POST associative arrays.

So line 2 of your code:-

if(isset($action))

needs to become

if(isset($_GET['action']))

or

if(isset($_POST['action']))

if your form uses POST method.

The other POST/GET variables in your script will also need changing in similar fashion.

Hope this helps.