Returning information out of a function

scoebird

General Issue: using functions in an include file and return information from varibles globally.

Heres the Why: I am developing an application which has some fairly high demands on session gathering and security. Hence I have decided to implement a SessionHandler.inc which will be resonsible for Managing an active login status between pages, as well as storing all session activities in a database...

Examples of how used:

SessionHandler.inc
SessionAuthenticate() - the implementation of the WWW Authenticate Private
SessionInstantiate()- Invoke PHP Session
SessionCredentials() - active ongoing authentication status between pages
SessionDestroy() - Close PHP Session
etc...

Current Authentication page not calling specific functions from the include file works great, but when I call several functions during IF..Then...Else... I cannot seem to get it to call and return the status information (whenther authenticated, and active session etc) between each function I have included in my inc file???

I have made each of the varibles I wish to extract data from as global, but I still cant get PHP to recognize the data from that variable.???

Thoughts?

Will provide snippets if needed.

Drakla

Post a bit of the code - are you including files that define global variables within a function? If so you've got to do a little trick to get php to behave as you'd expect, but I'll wait before just throwing it out in a wild hope-and-guess fashion

scoebird

Yep declaring global variables for everything I need to get out of the functions...

Drakla

Save this as include-me.inc.php

<?php
	// just defines - I'll be whevever my scope is
$isItGlobal1 = "I'm global 1, nice to meet you";

// I'm global - but if you're a function can you just use me?
$GLOBALS['isItGlobal2'] = "I'm global 2, how do you like them apples";

// uses global array, then declares global
$GLOBALS['isItGlobal3'] = "Global 3, dancing a jig... guess what I'm doing next?";
global $isItGlobal3;

// declares global before it's even defined
global $isItGlobal4;
$isItGlobal4 = 'Global 4, cook my dinner';

// mystery man
$isItGlobal5 = 'Global 5 - dancing';
?>

And this as whatever

<?php
include_it();

echo __FUNCTION__.'Global #1: '.$isItGlobal1.'<br />';
echo __FUNCTION__.'Global #2: '.$isItGlobal2.'<br />';
echo __FUNCTION__.'Global #3: '.$isItGlobal3.'<br />';
echo __FUNCTION__.'Global #4: '.$isItGlobal4.'<br />';
echo __FUNCTION__.'Global #5: '.$isItGlobal5.'<br />';

echo '<br />';

hello_globals();

/* includes the file */

function include_it()
{
	require_once('include-me.inc.php');

global $isItGlobal5;	// hmmm, ok - declared global after, remove this line later and run again

echo 'Live from include_it we have the following guests:<br />';

echo __FUNCTION__.'() Global #1: '.$isItGlobal1.'<br />';	// fine
echo __FUNCTION__.'() Global #2: '.$isItGlobal2.'<br />';	// NOT THERE!
echo __FUNCTION__.'() Global #3: '.$isItGlobal3.'<br />';	// fine
echo __FUNCTION__.'() Global #4: '.$isItGlobal4.'<br />';	// fine
echo __FUNCTION__.'() Global #5: '.$isItGlobal5.'<br />';	// eh?

echo '<br />include_it signing off...<br /><br />';	
}

function hello_globals()
{
	global $isItGlobal1, $isItGlobal2, $isItGlobal3, $isItGlobal4, $isItGlobal5;

echo __FUNCTION__.'() here, live with the following guests:<br />';
echo __FUNCTION__.'() Global #1: '.$isItGlobal1.'<br />';
echo __FUNCTION__.'() Global #2: '.$isItGlobal2.'<br />';
echo __FUNCTION__.'() Global #3: '.$isItGlobal3.'<br />';
echo __FUNCTION__.'() Global #4: '.$isItGlobal4.'<br />';
echo __FUNCTION__.'() Global #5: '.$isItGlobal5.'<br />';

echo '<br />';
}
?>

See if you understand what's going on, and how it should affect your include scripts.