DB.php

<?php

function Doo_DB($query)
{
	static $db = null;
	static $result = array();

	if (is_file($query) === true)
	{
		$db = new PDO('sqlite:' . $query, null, null, array(PDO::ATTR_ERRMODE => PDO::ERRMODE_WARNING));
	}

	else if (is_a($db, 'PDO') === true)
	{
		$hash = sha1($query);

		if (empty($result[$hash]) === true)
		{
			$result[$hash] = $db->prepare($query);
		}

		if (is_a($result[$hash], 'PDOStatement') === true)
		{
			if ($result[$hash]->execute(array_slice(func_get_args(), 1)) === true)
			{
				if (stripos($query, 'INSERT') === 0)
				{
					return $db->lastInsertId();
				}

				if (stripos($query, 'SELECT') === 0)
				{
					return $result[$hash]->fetchAll(PDO::FETCH_ASSOC);
				}

				return $result[$hash]->rowCount();
			}
		}

		return false;
	}

	return true;
}

?>

index.php

<?php

class Doo
{
	public static function __callStatic($method, $arguments)
	{
		if (is_file('./Doo/' . $method . '.php') === true)
		{
			if (function_exists('Doo_' . $method) === false)
			{
				require_once('./Doo/' . $method . '.php');
			}

			return call_user_func_array('Doo_' . $method, $arguments);
		}

		return false;
	}
}

?>

Pattern.php

<?php

function Doo_Pattern($string, $pattern, $key = null, $modifiers = null)
{
	$matches = array();

	if (preg_match('~' . $pattern . '~' . $modifiers, $string, $matches) > 0)
	{
		return (is_null($key) === true) ? true : Doo::Value($matches, $key);
	}

	return false;
}

?>

Redirect.php

<?php

function Doo_Redirect($url, $permanent = false)
{
	if (headers_sent() === false)
	{
		header('Location: ' . $url, true, ($permanent === true) ? 301 : 302);
	}

	exit();
}

?>

Route.php

<?php

function Doo_Route($route, $class, $method, $on = null)
{
	$on = (empty($on) === true) ? $_SERVER['REQUEST_METHOD'] : $on;
	$route = (empty($route) === true) ? $_SERVER['SCRIPT_NAME'] : $route;

	if (strcasecmp($on, $_SERVER['REQUEST_METHOD']) === 0)
	{
		$matches = array();

		if (preg_match('~' . rtrim($route, '/') . '$~i', rtrim($_SERVER['PHP_SELF'], '/'), $matches) > 0)
		{
			exit(call_user_func_array(array(Doo::Singleton($class), $method), array_slice($matches, 1)));
		}
	}

	return false;
}

?>

Singleton.php

<?php

function Doo_Singleton($object)
{
	static $result = array();

	if (class_exists($object, false) === true)
	{
		if (array_key_exists($object, $result) === false)
		{
			$result[$object] = new $object();
		}

		return $result[$object];
	}

	else if (is_file($object . '.php') === true)
	{
		$class = basename($object);

		if (array_key_exists($class, $result) === false)
		{
			if (class_exists($class, false) === false)
			{
				require($object . '.php');
			}

			$result[$class] = new $class();
		}

		return $result[$class];
	}

	return false;
}

?>

Slug.php

<?php

function Doo_Slug($string)
{
	if (Doo::Pattern($string, '[^\x00-\x7F]') === true)
	{
		$string = preg_replace('~&([a-z]{1,2})(acute|cedil|circ|grave|lig|orn|ring|slash|th|tilde|uml);~i', '$1', htmlentities($string, ENT_COMPAT, 'UTF-8'));
	}

	return strtolower(trim(preg_replace(array('~[^0-9a-z]~i', '~-+~'), '-', $string), '-'));
}

?>

Value.php

<?php

function Doo_Value($array, $key, $default = false)
{
	if (is_array($array) === true)
	{
		settype($key, 'array');

		foreach ($key as $value)
		{
			if (array_key_exists($value, $array) === false)
			{
				return $default;
			}

			$array = $array[$value];
		}

		return $array;
	}

	return $default;
}

?>

View.php

<?php

function Doo_View($view)
{
	if (is_file($view . '.php') === true)
	{
		for ($i = 1; $i < func_num_args(); $i++)
		{
			$argument = func_get_arg($i);

			if (is_array($argument) === true)
			{
				extract($argument, EXTR_OVERWRITE);
			}
		}

		require($view . '.php');
	}
}

?>