Understanding code

bcrossb · February 26th, 2009, 05:19 PM

Well,
I am very new to working with PHP. So new in fact, that i can not fig'r out how to add multi-users to the code on page 45. i have tried several different ways to alter the code, but so far, nada. ne1 willing to help me?
thank you,
bob
here is the code

Code:

session_start();
$_SESSION['username'] = $_POST['user'];
$_SESSION['userpass'] = $_POST['pass'];
$_SESSION['authuser'] = 0;

//Check username and password information
if (($_SESSION['username'] == 'bob') and
    ($_SESSION['userpass'] == 'xxxxxxxxxx' )) {
	$_SESSION['authuser'] = 1;
} else {
    echo 'Sorry, but you don\'t have permission to view this page!';
    exit();     
}

i want to add my brother jim to this password protected page.

philip_cole · February 27th, 2009, 08:18 AM

Hi bcrossb,

There are of course a number of ways you can work this, but for simplicity, you simply need to add another if statement to check for jim's login details.
Think about the logic of the page as opposed to the code:

Code:

- If the username and password equal bob's details
  - Set as logged in
- Otherwise, deny access

We want to slot in a check for jim's details between checking bob and denying access:

Code:

- If the username and password equal bob's details
  - Set as logged in
- Otherwise, if the username and password equal jim's details
  - Set as logged in
- Otherwise, deny access

To do this we can use the "else-if" statement:

Code:

if (($_SESSION['username'] == 'bob') and
    ($_SESSION['userpass'] == 'xxxxxxxxxx' )) {
    $_SESSION['authuser'] = 1;
} else if (($_SESSION['username'] == 'jim') and
    ($_SESSION['userpass'] == 'yyyyyyyyyy' )) {
    $_SESSION['authuser'] = 1;
} else {
    echo 'Sorry, but you don\'t have permission to view this page!';
    exit();     
}

You can do this for any number of users. Just keep adding the else ifs....

Let me know if that doesn't make sense
Phil

bcrossb · March 5th, 2009, 02:54 AM

nice!!!
very logical and clean. makes sense after i study it. thank you for the insight.
bob