thinkphp3.2.3(4)

    /**
     * 執行應用例項 入口檔案使用的快捷方法
     * @access public
     * @return void
     */
    static public function run() {
        // 應用初始化標籤
        Hook::listen('app_init');
        App::init();
        // 應用開始標籤
        Hook::listen('app_begin');
        // Session初始化
        if(!IS_CLI){
            session(C('SESSION_OPTIONS'));
        }
        // 記錄應用初始化時間
        G('initTime');
        App::exec();
        // 應用結束標籤
        Hook::listen('app_end');
        return ;
    }
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監聽app_init

 'app_init'     =>  array(
            'Behavior\BuildLiteBehavior', // 生成執行Lite檔案
        ),   
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app_init就是執行生成Lite檔案

<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2014 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace Behavior;
// 建立Lite執行檔案
// 可以替換框架入口檔案執行
// 建議繫結位置app_init
class BuildLiteBehavior {
    public function run(&$params) {
        if(!defined('BUILD_LITE_FILE')) return ;
        $litefile   =   C('RUNTIME_LITE_FILE',null,RUNTIME_PATH.'lite.php');
        if(is_file($litefile)) return;
        
        $defs       =   get_defined_constants(TRUE);
        $content    =   'namespace {$GLOBALS[\'_beginTime\'] = microtime(TRUE);';
        if(MEMORY_LIMIT_ON) {
            $content .= '$GLOBALS[\'_startUseMems\'] = memory_get_usage();';
        }

        // 生成陣列定義
        unset($defs['user']['BUILD_LITE_FILE']);
        $content   .=   $this->buildArrayDefine($defs['user']).'}';

        // 讀取編譯列表檔案
        $filelist   =   is_file(CONF_PATH.'lite.php')?
            include CONF_PATH.'lite.php':
            array(
                THINK_PATH.'Common/functions.php',
                COMMON_PATH.'Common/function.php',
                CORE_PATH . 'Think'.EXT,
                CORE_PATH . 'Hook'.EXT,
                CORE_PATH . 'App'.EXT,
                CORE_PATH . 'Dispatcher'.EXT,
                CORE_PATH . 'Log'.EXT,
                CORE_PATH . 'Log/Driver/File'.EXT,
                CORE_PATH . 'Route'.EXT,
                CORE_PATH . 'Controller'.EXT,
                CORE_PATH . 'View'.EXT,
                CORE_PATH . 'Storage'.EXT,
                CORE_PATH . 'Storage/Driver/File'.EXT,
                CORE_PATH . 'Exception'.EXT,
                BEHAVIOR_PATH . 'ParseTemplateBehavior'.EXT,
                BEHAVIOR_PATH . 'ContentReplaceBehavior'.EXT,
            );

        // 編譯檔案
        foreach ($filelist as $file){
          if(is_file($file)) {
            $content   .= compile($file);
          }
        }

        // 處理Think類的start方法
        $content  =  preg_replace('/\$runtimefile = RUNTIME_PATH(.+?)(if\(APP_STATUS)/','\2',$content,1);
        $content  .=  "\nnamespace { Think\Think::addMap(".var_export(\Think\Think::getMap(),true).");";
        $content  .=  "\nL(".var_export(L(),true).");\nC(".var_export(C(),true).');Think\Hook::import('.var_export(\Think\Hook::get(),true).');Think\Think::start();}';

        // 生成執行Lite檔案
        file_put_contents($litefile,strip_whitespace('<?php '.$content));
    }

    // 根據陣列生成常量定義
    private function buildArrayDefine($array) {
        $content = "\n";
        foreach ($array as $key => $val) {
            $key = strtoupper($key);
            $content .= 'defined(\'' . $key . '\') or ';
            if (is_int($val) || is_float($val)) {
                $content .= "define('" . $key . "'," . $val . ');';
            } elseif (is_bool($val)) {
                $val = ($val) ? 'true' : 'false';
                $content .= "define('" . $key . "'," . $val . ');';
            } elseif (is_string($val)) {
                $content .= "define('" . $key . "','" . addslashes($val) . "');";
            }
            $content    .= "\n";
        }
        return $content;
    }
}
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App::init();

 /**
     * 應用程式初始化
     * @access public
     * @return void
     */
    static public function init() {
        // 載入動態應用公共檔案和配置
        load_ext_file(COMMON_PATH);

        // 日誌目錄轉換為絕對路徑 預設情況下儲存到公共模組下面
        C('LOG_PATH',   realpath(LOG_PATH).'/Common/');

        // 定義當前請求的系統常量
        define('NOW_TIME',      $_SERVER['REQUEST_TIME']);
        define('REQUEST_METHOD',$_SERVER['REQUEST_METHOD']);
        define('IS_GET',        REQUEST_METHOD =='GET' ? true : false);
        define('IS_POST',       REQUEST_METHOD =='POST' ? true : false);
        define('IS_PUT',        REQUEST_METHOD =='PUT' ? true : false);
        define('IS_DELETE',     REQUEST_METHOD =='DELETE' ? true : false);

        // URL排程
        Dispatcher::dispatch();

        if(C('REQUEST_VARS_FILTER')){
			// 全域性安全過濾
			array_walk_recursive($_GET,		'think_filter');
			array_walk_recursive($_POST,	'think_filter');
			array_walk_recursive($_REQUEST,	'think_filter');
		}

        // URL排程結束標籤
        Hook::listen('url_dispatch');         

        define('IS_AJAX',       ((isset($_SERVER['HTTP_X_REQUESTED_WITH']) && strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) == 'xmlhttprequest') || !empty($_POST[C('VAR_AJAX_SUBMIT')]) || !empty($_GET[C('VAR_AJAX_SUBMIT')])) ? true : false);

        // TMPL_EXCEPTION_FILE 改為絕對地址
        C('TMPL_EXCEPTION_FILE',realpath(C('TMPL_EXCEPTION_FILE')));
        return ;
    }

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