view.php

<?php
!defined('VIEW_PATH') && define('VIEW_PATH', 'view/');
class view {
	private $_view = array('file' => '', 'data' => array());
	static $_pos = null;
    static $_section = null;

	static function load($file, $set = null) {
		if (is_int(strripos($file, '..'))) {
			die("error view file name:$file");
		}
		$file = str_replace('.', '/', $file);

		return new view($file, $set);
	}

	public function __construct($file, $set = null) {
		if (isset(self::$_pos)) {
			$this->_view['parent'] = self::$_pos;
			$this->with($this->_view['parent']->_view['data']);
		}
		$this->_view['file'] = $file;
		$this->with($set);
	}

	public function with($name, $value = NULL) {
		if (is_array($name)) {
			$this->_view['data'] = array_merge($this->_view['data'], $name);
		} elseif (is_string($name)) {
			$this->_view['data'][$name] = $value;
		}
		return $this;
	}

	public function __toString() {
		self::$_pos = $this;

		$this->_view['file'] = VIEW_PATH . $this->_view['file'] . '.php';
		if(!file_exists($this->_view['file'])){
			self::to404('404');
		}

		extract($this->_view['data']);

		ob_start();
		include $this->_view['file'];

		if (isset($this->_view['layout'])) {
			echo $this->_view['layout'] . ob_get_clean();
		}


		self::$_pos = isset($this->_view['parent']) ? $this->_view['parent'] : NULL;

		$return_str = ob_get_clean();

		return $return_str;
	}

	public function show() {
		echo $this;
	}

    
	static function layout($file) {
		ob_start();
		$view_layout = self::load($file);
		self::$_pos->_view['layout'] = $view_layout;
	}

	static function section($name) {
		if (isset(self::$_pos->_view['section'][$name])) {
			echo self::$_pos->_view['section'][$name];
		} elseif (isset(self::$_pos->_view['parent']->_view['section'][$name])) {
			echo self::$_pos->_view['parent']->_view['section'][$name];
		}
	}

	static function begin($name) {
        self::$_section = $name;
		ob_start();
	}

	static function end() {
		self::$_pos->_view['section'][self::$_section] = ob_get_clean();
        self::$_section = null;
	}

	static function direct($loction) {
		header("Location:$loction");
		exit();
	}

	static function abort() {
		header("HTTP/1.1 502 Bad Gateway");
		exit();
	}

	static function to404(){
		header("HTTP/1.1 404 Not Found");
		exit();
	}
}