Re: Sharing variable values among PHP files

Leif K-Brooks <eurleif@buyer-brokerage.com> · Tue, 01 Apr 2003 03:07:23 -0500

Please, please, PLEASE don't give advice!  If you don't know the answer, 
DON'T COMMENT!  The method you posted is for register_gkobals on, which 
it won'tr always (and shouldn't be)!

Ronan Chilvers wrote:

Coments inline...

<snip>
On 01 Apr,2003 at 10:04 Mustafa Ocak wrote:

You can store the value in a session variable 

session_start();

if (isset($_HTTP_SESSION_VARS['your_variable_name'])) {

</snip>

Rather than using isset() you may need to use session_is_registered().  This is specifically for checking the existence of a session variable.  I would do something like

<?php

// need this on all pages where you want to work with 
// the session var

session_start();

// Check for the existence of the session var and create
// it if it doesn't exist
if (!session_is_registered("ses_username")) {
	session_register("ses_username");
}

// Are we getting a form var thru ?  if so pop it into the session var
if (isset($frm_username)) {
	$ses_username = $frm_username;
}

// then in your scripts you can do
do_my_amazing_function($ses_username);

?>

As long as you have session_start() at the beginning of each script, $ses_username is now available across scripts.

<snip>

$value=$_HTTP_SESSION_VARS['your_variable_name']; //get the value
}else{
$_HTTP_SESSION_VARS['your_variable_name']=new value;
}

</snip>

Hope that helps.

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