Suggested stack improvements

New stack

<?php

/*
 * README
 * mkdir one && mkdir two && mkdir three && touch one/blueprint-1.3.css && touch one/foobar.css && touch two/jquery.js && touch three/jquery-1.4.js
 *
 */

include('stack.php');

Stack::header('jquery', '1.4', array(array('name' => 'blueprint', 'version' => '1.3')));
echo "----------------<br/>";
Stack::footer('jquery', '1.4');


class Stack {

	static $header = array();
	static $footer = array();
	static $added = array();
	
	// Add some searchable paths, one would be the most important folder
	static $stack = array('one', 'two', 'three');
	static $list = array(
						'jquery' => array('ext' => 'js', 'reqiures' => array(array('name' => 'foobar'))),
						'blueprint' => array('ext' => 'css'),
						'foobar' => array('ext' => 'css')
						);

	public static function header($name, $version = null, $reqiures = array())
	{
		if (self::added($name))
		{
			echo 'Already added! '.$name.'<br/>';
			return true;
		}
		
		if ( ! empty(self::$list[$name]['reqiures']))
		{
			$reqiures = array_merge($reqiures, self::$list[$name]['reqiures']);
		}
	
		if( ! empty($reqiures))
		{
			foreach($reqiures as $script)
			{
				$req_name = $script['name'];
				$req_version = ! empty($script['version']) ? $script['version'] : null;
				$req_reqiures = ! empty($script['reqiures']) ? $script['reqiures'] : null;
				Stack::header($req_name, $req_version, $req_reqiures);
			}
		}
		
		foreach (self::$stack as $dir)
		{
			$tmp = $dir.'/'.$name;
			$tmp .= $version ? '-'.$version : "";
			$tmp .= '.'.self::$list[$name]['ext'];
			
			if (is_file($tmp))
			{
				echo 'Found it! '.$tmp.'<br/>';
				// This path has a file, add it to the list
				self::$header[] = $tmp;
				self::$added[] = $name;
				break;
			}
		}
	}
	
	public static function footer($name, $version = null, $reqiures = array())
	{
		if (self::added($name))
		{
			echo 'Already added! '.$name.'<br/>';
			return true;
		}

		if ( ! empty(self::$list[$name]['reqiures']))
		{
			$reqiures = array_merge($reqiures, self::$list[$name]['reqiures']);
		}
	
		if( ! empty($reqiures))
		{
			foreach($reqiures as $script)
			{
				$req_name = $script['name'];
				$req_version = ! empty($script['version']) ? $script['version'] : null;
				$req_reqiures = ! empty($script['reqiures']) ? $script['reqiures'] : null;
				Stack::footer($req_name, $req_version, $req_reqiures);
			}
		}
		
		foreach (self::$stack as $dir)
		{
			$tmp = $dir.'/'.$name;
			$tmp .= $version ? '-'.$version : "";
			$tmp .= '.'.self::$list[$name]['ext'];
			
			if (is_file($tmp))
			{
				echo 'Found it! '.$tmp.'<br/>';
				// This path has a file, add it to the list
				self::$footer[] = $tmp;
				self::$added[] = $name;
				break;
			}
		}
	}
	
	public static function added($name)
	{
		return in_array($name, self::$added);
	}
	
}

?>