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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
// $Id: View.class.php 2702 2012-02-02 12:35:01Z liu21st $
/**
+------------------------------------------------------------------------------
* ThinkPHP 视图输出
+------------------------------------------------------------------------------
* @category Think
* @package Think
* @subpackage Core
* @author liu21st <liu21st@gmail.com>
* @version $Id: View.class.php 2702 2012-02-02 12:35:01Z liu21st $
+------------------------------------------------------------------------------
*/
class View {
protected $tVar = array(); // 模板输出变量
/**
+----------------------------------------------------------
* 模板变量赋值
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param mixed $name
* @param mixed $value
+----------------------------------------------------------
*/
public function assign($name,$value=''){
if(is_array($name)) {
$this->tVar = array_merge($this->tVar,$name);
}elseif(is_object($name)){
foreach($name as $key =>$val)
$this->tVar[$key] = $val;
}else {
$this->tVar[$name] = $value;
}
}
/**
+----------------------------------------------------------
* 取得模板变量的值
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param string $name
+----------------------------------------------------------
* @return mixed
+----------------------------------------------------------
*/
public function get($name){
if(isset($this->tVar[$name]))
return $this->tVar[$name];
else
return false;
}
/* 取得所有模板变量 */
public function getAllVar(){
return $this->tVar;
}
// 调试页面所有的模板变量
public function traceVar(){
foreach ($this->tVar as $name=>$val){
dump($val,1,'['.$name.']<br/>');
}
}
/**
+----------------------------------------------------------
* 加载模板和页面输出 可以返回输出内容
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param string $templateFile 模板文件名
* @param string $charset 模板输出字符集
* @param string $contentType 输出类型
+----------------------------------------------------------
* @return mixed
+----------------------------------------------------------
*/
public function display($templateFile='',$charset='',$contentType='') {
G('viewStartTime');
// 视图开始标签
tag('view_begin',$templateFile);
// 解析并获取模板内容
$content = $this->fetch($templateFile);
// 输出模板内容
$this->show($content,$charset,$contentType);
// 视图结束标签
tag('view_end');
}
/**
+----------------------------------------------------------
* 输出内容文本可以包括Html
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param string $content 输出内容
* @param string $charset 模板输出字符集
* @param string $contentType 输出类型
+----------------------------------------------------------
* @return mixed
+----------------------------------------------------------
*/
public function show($content,$charset='',$contentType=''){
if(empty($charset)) $charset = C('DEFAULT_CHARSET');
if(empty($contentType)) $contentType = C('TMPL_CONTENT_TYPE');
// 网页字符编码
header('Content-Type:'.$contentType.'; charset='.$charset);
header('Cache-control: private'); //支持页面回跳
header('X-Powered-By:ThinkPHP');
// 输出模板文件
echo $content;
}
/**
+----------------------------------------------------------
* 解析和获取模板内容 用于输出
+----------------------------------------------------------
* @access public
+----------------------------------------------------------
* @param string $templateFile 模板文件名
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
*/
public function fetch($templateFile='') {
// 模板文件解析标签
tag('view_template',$templateFile);
// 模板文件不存在直接返回
if(!is_file($templateFile)) return NULL;
// 页面缓存
ob_start();
ob_implicit_flush(0);
if('php' == strtolower(C('TMPL_ENGINE_TYPE'))) { // 使用PHP原生模板
// 模板阵列变量分解成为独立变量
extract($this->tVar, EXTR_OVERWRITE);
// 直接载入PHP模板
include $templateFile;
}else{
// 视图解析标签
$params = array('var'=>$this->tVar,'file'=>$templateFile);
tag('view_parse',$params);
}
// 获取并清空缓存
$content = ob_get_clean();
// 内容过滤标签
tag('view_filter',$content);
// 输出模板文件
return $content;
}
}
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