Including a function, and the variable created within cannot be found

[Keiron Waites]

Hi,

I include the following function:

<?php
function login($members_ only) {
if (isset($_COOKIE['login'])) {
$login = explode("|split |",$_COOKIE['login']);
$login = array("username "=>$login[0],"password"=>$l ogin[1]);
}
else if ($members_only == 1) {
header("Locatio n: login.php");
}
}
?>

in a file called account.php:

<?php
require("websit e-includes/login.inc.php") ;
login(1);
[snip]
?>

The problem is that I need to be able to access $login outside of the
function within the page that calls it. Is this possible? I'm new to
functions and before I was just including code, but I am told functions are
better.

TIA

[Jochen Daum]

Re: Including a function, and the variable created within cannot be found

Hi Keiron!

On Thu, 11 Sep 2003 20:12:55 +0000 (UTC), "Keiron Waites"
<webmaster@-NOSPAM-sharemonkey.com > wrote:
[color=blue]
>Hi,
>
>I include the following function:
>
><?php
>function login($members_ only) {
> if (isset($_COOKIE['login'])) {
> $login = explode("|split |",$_COOKIE['login']);
> $login = array("username "=>$login[0],"password"=>$l ogin[1]);
> }
> else if ($members_only == 1) {
> header("Locatio n: login.php");
> }
>}
>?>
>
>in a file called account.php:
>
><?php
>require("websi te-includes/login.inc.php") ;
>login(1);
>[snip]
>?>
>
>The problem is that I need to be able to access $login outside of the
>function within the page that calls it. Is this possible? I'm new to
>functions and before I was just including code, but I am told functions are
>better.[/color]

Have a look at variable scopes in function on www.php.net, but better
look at functions and use return.

Jochen


[color=blue]
>
>TIA
>[/color]

--
Jochen Daum - CANS Ltd.
PHP DB Edit Toolkit -- PHP scripts for building
database editing interfaces.
http://sourceforge.net/projects/phpdbedittk/

[Alex Farran]

Re: Including a function, and the variable created within cannot befound

Keiron Waites writes:
[color=blue]
> Hi,
> I include the following function:[/color]
[color=blue]
> <?php
> function login($members_ only) {
> if (isset($_COOKIE['login'])) {
> $login = explode("|split |",$_COOKIE['login']);
> $login = array("username "=>$login[0],"password"=>$l ogin[1]);
> }
> else if ($members_only == 1) {
> header("Locatio n: login.php");
> }
> }
> ?>[/color]
[color=blue]
> in a file called account.php:[/color]
[color=blue]
> <?php
> require("websit e-includes/login.inc.php") ;
> login(1);
> [snip]
> ?>[/color]
[color=blue]
> The problem is that I need to be able to access $login outside of the
> function within the page that calls it. Is this possible? I'm new to
> functions and before I was just including code, but I am told functions are
> better.[/color]

At the end of your function you could add :
return $login;
and call it with:
$login = login(1);

Another thing you could is use objects to define a scope in which
functions can share variables. Like this:

<?php
class login_class {
// Shared variables used by login functions.
var $login;
var $members_only;

// Constructor function that intialises the object.
function login_class( $members_only ) {
$this->members_only = $members_only;
}

// The login function now refers to class variables.
function login() {
if (isset($_COOKIE['login'])) {
$this->login = explode("|split |",$_COOKIE['login']);
$this->login = array("username "=>$this->login[0],
"password"=>$th is->login[1]);
}
else if ($this->members_only == 1) {
header("Locatio n: login.php");
}
}

// Another function that uses $this->login
function get_username() {
return $this->login("usernam e");
}
}

?>


<?php
require("websit e-includes/login_class.inc .php");
$login_class = new login_class(1); // Instantiate and initialise your class.

$login_class->login(); // Call a function.

?>

--

__o Alex Farran
_`\<,_ Analyst / Programmer
(_)/ (_) www.alexfarran.com