Nested output buffering with external class dependencies [please help] - php

Question

Thanks in advance for any and all advice.
I have one file (content file) where an array is created like so:
$config['plugins']['BannerRotate'] = array(
'container' => 'abroadView',
'arrows' => true,
'auto' => true,
'speed' => '15000',
'width' => '300px',
'height' => '220px',
'tags' => 'slider'
);
Which in turn is picked up by the so-called 'template system' and the layout is rendered with the page (and that array) as the argument (pretty standard).
That array is then used by the template system to generate a new object like so:
if(isset($GLOBALS['config']['plugins'])){
foreach($GLOBALS['config']['plugins'] as $plugin => $ary){
$$plugin = new Ispweb_Plugindaemon(CURRENTSRV,getcwd().'/',
$GLOBALS['config']['plugins'][$plugin],$plugin);
// this statement is simply the result of the eval statement below
}
}
So then, since the name of the plugin in this case is BannerRotate, the object is $BannerRotate (variable variable). I'm doing this so I can have multiple plugin objects per page. This object is then used to call the jQuery plugin using member function $BannerRotate->getJS(). These member function calls are located WITHIN the templating system (IMPORTANT).
If I call a member function inside the same file as the initial array [OUTSIDE THE TEMPLATING SYSTEM] (the file that I'm buffering in order to create the object in the first place), everything dies. This doesn't make sense to me because if I var_dump($BannerRotate), I get a full object. However, say in that content file I do $BannerRotate->printNoscript(), everything disappears and the object is never created. I then get a fatal error that I'm calling a member function of a non-object. THAT IS THE PROBLEM.
Here is what I'm doing within the templating system to buffer the content file (and create the object(s)):
ob_start();
include $core_page_content; // the content file (where initial array is)
if(isset($GLOBALS['config']['plugins'])){
foreach($GLOBALS['config']['plugins'] as $plugin => $ary){
$ins[] = $plugin;
}
}
$t = ob_get_contents();
ob_end_clean();
foreach($ins as $in){
$a = CURRENTSRV; // a,b,c,d are just making the eval statement more clean
$b = getcwd().'/';
$c = array();
foreach($GLOBALS['config']['plugins'][$in] as $key => $value){
$c[$key] = $value;
}
$d = $in;
eval("\$$in = new Ispweb_Plugindaemon(\"$a\",\"$b\",\$c,\"$d\");");
echo $$in;
}
include $core_page_content;
$page_content = ob_get_contents();
ob_end_clean();
Does anyone know why I can access the object UNLESS I make a call to one of its member functions while inside the same file?
What can I do?
P.S. I know the setup is not ideal. There's nothing I can do about that.
Thanks!
TL;DR I'm creating an object in file A, with a variable from file B. I buffer file B to get the parameters to feed to file A, create the object, print it into another buffer and include file B in that buffer as well. If file B has a function call to the presumably created object, I get a fatal error: call to member function of non-object.
Additional Notes:
File B:
$config['plugins']['BannerRotate'] = array(
'container' => 'abroadView',
'arrows' => true
);
// page content (XHTML)
File A:
ob_start();
$core_page_content = 'file_b';
include $core_page_content;
if(isset($config['plugins'])){
foreach($config['plugins'] as $plugin => $ary){
$ins[] = $plugin;
}
ob_end_clean();
foreach($ins as $in){
$$in = new Ispweb_Plugindaemon(CURRENTSRV,getcwd().'/',$config['plugins'][$in],$in);
}
include $core_page_content;
$page_content = ob_get_contents();
ob_end_clean();
// later on in the file
include 'top.htm';
include $page_content;
include 'bot.htm';

Answer 1

The problem was variable scope.