<?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: ShowPageTraceBehavior.class.php 2702 2012-02-02 12:35:01Z liu21st $



/**

 +------------------------------------------------------------------------------

 * 系统行为扩展 页面Trace显示输出

 +------------------------------------------------------------------------------

 */

class ShowPageTraceBehavior extends Behavior {

    // 行为参数定义

    protected $options   =  array(

        'SHOW_PAGE_TRACE'        => false,   // 显示页面Trace信息

    );



    // 行为扩展的执行入口必须是run

    public function run(&$params){

        if(C('SHOW_PAGE_TRACE')) {

            echo $this->showTrace();

        }

    }



    /**

     +----------------------------------------------------------

     * 显示页面Trace信息

     +----------------------------------------------------------

     * @access private

     +----------------------------------------------------------

     */

    private function showTrace() {

         // 系统默认显示信息

        $log  =   Log::$log;

        $files =  get_included_files();

        $trace   =  array(

            '请求时间'=>  date('Y-m-d H:i:s',$_SERVER['REQUEST_TIME']),

            '当前页面'=>  __SELF__,

            '请求协议'=>  $_SERVER['SERVER_PROTOCOL'].' '.$_SERVER['REQUEST_METHOD'],

            '运行信息'=>  $this->showTime(),

            '会话ID'    =>  session_id(),

            '日志记录'=>  count($log)?count($log).'条日志<br/>'.implode('<br/>',$log):'无日志记录',

            '加载文件'=>  count($files).str_replace("\n",'<br/>',substr(substr(print_r($files,true),7),0,-2)),

            );



        // 读取项目定义的Trace文件

        $traceFile  =   CONF_PATH.'trace.php';

        if(is_file($traceFile)) {

            // 定义格式 return array('当前页面'=>$_SERVER['PHP_SELF'],'通信协议'=>$_SERVER['SERVER_PROTOCOL'],...);

            $trace   =  array_merge(include $traceFile,$trace);

        }

        // 设置trace信息

        trace($trace);

        // 调用Trace页面模板

        ob_start();

        include C('TMPL_TRACE_FILE')?C('TMPL_TRACE_FILE'):THINK_PATH.'Tpl/page_trace.tpl';

        return ob_get_clean();

    }



    /**

     +----------------------------------------------------------

     * 显示运行时间、数据库操作、缓存次数、内存使用信息

     +----------------------------------------------------------

     * @access private

     +----------------------------------------------------------

     * @return string

     +----------------------------------------------------------

     */

    private function showTime() {

        // 显示运行时间

        G('beginTime',$GLOBALS['_beginTime']);

        G('viewEndTime');

        $showTime   =   'Process: '.G('beginTime','viewEndTime').'s ';

        // 显示详细运行时间

        $showTime .= '( Load:'.G('beginTime','loadTime').'s Init:'.G('loadTime','initTime').'s Exec:'.G('initTime','viewStartTime').'s Template:'.G('viewStartTime','viewEndTime').'s )';

        // 显示数据库操作次数

        if(class_exists('Db',false) ) {

            $showTime .= ' | DB :'.N('db_query').' queries '.N('db_write').' writes ';

        }

        // 显示缓存读写次数

        if( class_exists('Cache',false)) {

            $showTime .= ' | Cache :'.N('cache_read').' gets '.N('cache_write').' writes ';

        }

        // 显示内存开销

        if(MEMORY_LIMIT_ON ) {

            $showTime .= ' | UseMem:'. number_format((memory_get_usage() - $GLOBALS['_startUseMems'])/1024).' kb';

        }

        // 显示文件加载数

        $showTime .= ' | LoadFile:'.count(get_included_files());

        // 显示函数调用次数 自定义函数,内置函数

        $fun  =  get_defined_functions();

        $showTime .= ' | CallFun:'.count($fun['user']).','.count($fun['internal']);

        return $showTime;

    }

}