Is this a good way to organize php?

I have an array on each page that calls a class:

require_once("global.php");
$globalarray = array(

		'connection'=>$GLOBAL->getDBConnection(),
		'heading_start'=>$GLOBAL->getHeading_start($title),
		'container_start'=>$GLOBAL->getContainer_start(),

Code (markup):

and inside global is a class that has functions like this

	function getHeading_start($title){
		require_once("functions/heading_start.php");
	}
	function getContainer_start(){
		require_once("functions/container_start.php");
	}
	function getTopbar(){
		require_once("functions/topbar.php");
	}
	function getHeader(){
		require_once("functions/header.php");
	}
	function getNavigation(){
		require_once("functions/navigation.php");
	}

Code (markup):

And it only requires the files when the page requests the function correct?

 

What connection method are you using? Mysql_connect or something like PDO? Those require statements kind of defeat the whole purpose of classes, and it is not best practice to include them in classes like that.

 

ok, Then what should I do?