login system problems - please help!!

barbs75

Hi, i have posted previously with a problem with my login system, i have tried a different method now, where i have divided my code into separate pages, storing functions in one place, output processing in one place etc, which are called into pages using "require_once" command, which makes an easier to understand system and allows easier re-use of code.

I am having a few problems with the system at the moment, focusing on the login itself. my login.php page doesn't show anything on screen at all! its just a plain white screen!

The code for the login.php page is as follows:

<?
	require_once("houses_fns.php");
	do_html_header("login");

display_site_info();
display_login_form();

do_html_footer();
?>

This page calls the "houses_fns.php" page which has further includes, including more files with functions in.

The houses_fns.php page is as follows:

<?
	require_once("data_valid_fns.php");
	require_once("db_fns.php");
	require_once("user_auth_fns.php");
	require_once("output_fns.php");
?>

This calls function pages to connect to my database, and has checks on the data when regsitered ie checking passwords, checking the form is filled out etc. The page here that i am concerned with is the "output_fns.php" page, which holds all the forms, and html code for output.

The code for output_fns.php i have included in a .txt attachment with this post, as the code was too long to include in the main message section!! so please take a look at the txt attachment file!!

What i have tried to do in this page is have functiosn which are called from the login page, to output the necessary html to display on screen.
The function "do_html_header($title)" allws the title of the page to be generated by the variable passed as title, which is called when the function is called on the login page, then uses an include to include my html top image and menu etc. Then calls the function "do_html_heading" to out a heading on the page and then puts the login form in the body using the function "display_login_form()" and then outputs my bottom content bar in the function "do_html_footer()" which uses and include page too, like the top menu.
In the head of the page i have included reference to a style sheet "Style1.css" so i have used div tags and stuff on the form etc, i think this should still work?

When i call my login.php page, it just comes up with a blank white screen, when im pretty sure it should appear with my top header, login form etc. i have even tried submitting regular echo commands and html headings using normal styling, but still nothing appears.

Can someone please take a look over the code for me, and maybe identify what i'm missing or where i'm going wrong, because i'm fairly new to php and can't figure it out, i have been through all my code and cant identify a problem anywhere!!

PLEASE HELP ME!! im so stuck, really need help

thanks guys

Craig (barbs75)

NogDog

For a quick sanity check, if you do a "view source" in your browser when you get the blank page, is anything there, or is it blank, too?

You might want to add the following to the start of your main script to see if you are missing any error messages that PHP may have for you to help debug where the problem is:

ini_set('display_errors', 1);
error_reporting(E_ALL);

(You'll probably want to comment that out in the final production version, or modify it to log errors to a file.)

barbs75

Hey NogDog, firstly thankyou for taking the time to reply to me!

I have out those two lines of code on the top of every page within the php brackets, nothing happens, still a blank screen.

When i view the source, it shows the code that i can see in dremaweaver coding view!

i ran the "output_fns.php" page directly, and it outputs my html from that page, sothat page works ok, i'm just having problems obviously with linking the pages in, into 'login.php' and 'houses_fns.php'

any ideas at all on what could be wrong?

I'm using php 5 version, i have tried using "include" instead of "require_once" on my pages, that still doesn't work either!

cheers

Craig (barbs75)

NogDog

Try changing your "<?" tags to "<?php", and if you have "<?=" tags anywhere change them to "<?php echo". Your host may not have PHP's short_open_tags configuration attribute enabled, and it's best not to depend on it being set, anyway.

barbs75

Hiya, cheers for the reply

I ahve tried changing all the <? tags to <?php as you suggested, but still doesn't work

I just can't put my finger on what could be wrong!

Is there any other help that you can give me?

Cheers

Craig (barbs75)

NogDog

Well, we could get down to real basics and make sure PHP is working on your host. Do any other PHP scripts work OK? You can try copying the following into a file (with no other content), save it with a filename that has a .php suffix, then open it in your browser:

<?php
phpinfo();
?>

If you don't get a long page full of all sorts of arcane data about your PHP installation, then either PHP is not running, or there's something funky about your configuration.

barbs75

I have the phpinfo script, and that works fine!

i have other php scripts which work fine as well, so it must be a more complex problem, but i really dont know what it could be!!

please help!!

Cheers

Craig (barbs75)

barbs75

Just viewed login.php, and now my top menu is appearing, in the wrong position on the page mind, but it has appeared, meaning that the function "do_html_header" is working, strange though that the other functions called on the login.php page aren't working, because it suggests that it should

strange.....

Craig (barbs75)

barbs75

hey, i'm really stuck

the html code is being generated now, so the headers and footers appear, but it is now the php code that is not working correctly, the backhand code.

i get a lot of my script appearing on the screen when i preview my pages, which is obviously identifying where my errors are.

i am going to put the rest of my php pages on here as attachments in txt files so you can see them, i have included the following pages:

member.php - processes all form validation functions that are held in 'data_valid_fns.php' and 'user_auth_fns.php'

data_valid_fns.php - checks that the register form has been filled out and checks the email entered is valid

user_auth_fns.php - registers successful registered member in database, has login functions, checks for a valid user, and does password admin (resetting, notifying of new password and changing password)

db_fns.php - connects to database

regsiter_new.php - php behind processing the register

if you could take a look at these files and look at my code, i would be very thankful, i just cant figure out where to fix my problem

cheers

Craig (barbs75)