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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: common.php 2799 2012-03-05 07:18:06Z liu21st $
/**
+------------------------------------------------------------------------------
* Think 基础函数库
+------------------------------------------------------------------------------
* @category Think
* @package Common
* @author liu21st <liu21st@gmail.com>
* @version $Id: common.php 2799 2012-03-05 07:18:06Z liu21st $
+------------------------------------------------------------------------------
*/
// 记录和统计时间（微秒）
function G($start,$end='',$dec=4) {
static $_info = array();
if(is_float($end)) { // 记录时间
$_info[$start] = $end;
}elseif(!empty($end)){ // 统计时间
if(!isset($_info[$end])) $_info[$end] = microtime(TRUE);
return number_format(($_info[$end]-$_info[$start]),$dec);
}else{ // 记录时间
$_info[$start] = microtime(TRUE);
}
}
// 设置和获取统计数据
function N($key, $step=0) {
static $_num = array();
if (!isset($_num[$key])) {
$_num[$key] = 0;
}
if (empty($step))
return $_num[$key];
else
$_num[$key] = $_num[$key] + (int) $step;
}
/**
+----------------------------------------------------------
* 字符串命名风格转换
* type
* =0 将Java风格转换为C的风格
* =1 将C风格转换为Java的风格
+----------------------------------------------------------
* @access protected
+----------------------------------------------------------
* @param string $name 字符串
* @param integer $type 转换类型
+----------------------------------------------------------
* @return string
+----------------------------------------------------------
*/
function parse_name($name, $type=0) {
if ($type) {
return ucfirst(preg_replace("/_([a-zA-Z])/e", "strtoupper('\\1')", $name));
} else {
return strtolower(trim(preg_replace("/[A-Z]/", "_\\0", $name), "_"));
}
}
// 优化的require_once
function require_cache($filename) {
static $_importFiles = array();
if (!isset($_importFiles[$filename])) {
if (file_exists_case($filename)) {
require $filename;
$_importFiles[$filename] = true;
} else {
$_importFiles[$filename] = false;
}
}
return $_importFiles[$filename];
}
// 区分大小写的文件存在判断
function file_exists_case($filename) {
if (is_file($filename)) {
if (IS_WIN && C('APP_FILE_CASE')) {
if (basename(realpath($filename)) != basename($filename))
return false;
}
return true;
}
return false;
}
/**
+----------------------------------------------------------
* 导入所需的类库 同java的Import
* 本函数有缓存功能
+----------------------------------------------------------
* @param string $class 类库命名空间字符串
* @param string $baseUrl 起始路径
* @param string $ext 导入的文件扩展名
+----------------------------------------------------------
* @return boolen
+----------------------------------------------------------
*/
function import($class, $baseUrl = '', $ext='.class.php') {
static $_file = array();
$class = str_replace(array('.', '#'), array('/', '.'), $class);
if ('' === $baseUrl && false === strpos($class, '/')) {
// 检查别名导入
return alias_import($class);
}
if (isset($_file[$class . $baseUrl]))
return true;
else
$_file[$class . $baseUrl] = true;
$class_strut = explode('/', $class);
if (empty($baseUrl)) {
if ('@' == $class_strut[0] || APP_NAME == $class_strut[0]) {
//加载当前项目应用类库
$baseUrl = dirname(LIB_PATH);
$class = substr_replace($class, basename(LIB_PATH).'/', 0, strlen($class_strut[0]) + 1);
}elseif ('think' == strtolower($class_strut[0])){ // think 官方基类库
$baseUrl = CORE_PATH;
$class = substr($class,6);
}elseif (in_array(strtolower($class_strut[0]), array('org', 'com'))) {
// org 第三方公共类库 com 企业公共类库
$baseUrl = LIBRARY_PATH;
}else { // 加载其他项目应用类库
$class = substr_replace($class, '', 0, strlen($class_strut[0]) + 1);
$baseUrl = APP_PATH . '../' . $class_strut[0] . '/'.basename(LIB_PATH).'/';
}
}
if (substr($baseUrl, -1) != '/')
$baseUrl .= '/';
$classfile = $baseUrl . $class . $ext;
if (!class_exists(basename($class),false)) {
// 如果类不存在 则导入类库文件
return require_cache($classfile);
}
}
/**
+----------------------------------------------------------
* 基于命名空间方式导入函数库
* load('@.Util.Array')
+----------------------------------------------------------
* @param string $name 函数库命名空间字符串
* @param string $baseUrl 起始路径
* @param string $ext 导入的文件扩展名
+----------------------------------------------------------
* @return void
+----------------------------------------------------------
*/
function load($name, $baseUrl='', $ext='.php') {
$name = str_replace(array('.', '#'), array('/', '.'), $name);
if (empty($baseUrl)) {
if (0 === strpos($name, '@/')) {
//加载当前项目函数库
$baseUrl = COMMON_PATH;
$name = substr($name, 2);
} else {
//加载ThinkPHP 系统函数库
$baseUrl = EXTEND_PATH . 'Function/';
}
}
if (substr($baseUrl, -1) != '/')
$baseUrl .= '/';
require_cache($baseUrl . $name . $ext);
}
// 快速导入第三方框架类库
// 所有第三方框架的类库文件统一放到 系统的Vendor目录下面
// 并且默认都是以.php后缀导入
function vendor($class, $baseUrl = '', $ext='.php') {
if (empty($baseUrl))
$baseUrl = VENDOR_PATH;
return import($class, $baseUrl, $ext);
}
// 快速定义和导入别名
function alias_import($alias, $classfile='') {
static $_alias = array();
if (is_string($alias)) {
if(isset($_alias[$alias])) {
return require_cache($_alias[$alias]);
}elseif ('' !== $classfile) {
// 定义别名导入
$_alias[$alias] = $classfile;
return;
}
}elseif (is_array($alias)) {
$_alias = array_merge($_alias,$alias);
return;
}
return false;
}
/**
+----------------------------------------------------------
* D函数用于实例化Model 格式 项目://分组/模块
+----------------------------------------------------------
* @param string name Model资源地址
+----------------------------------------------------------
* @return Model
+----------------------------------------------------------
*/
function D($name='') {
if(empty($name)) return new Model;
static $_model = array();
if(isset($_model[$name]))
return $_model[$name];
if(strpos($name,'://')) {// 指定项目
$name = str_replace('://','/Model/',$name);
}else{
$name = C('DEFAULT_APP').'/Model/'.$name;
}
import($name.'Model');
$class = basename($name.'Model');
if(class_exists($class)) {
$model = new $class();
}else {
$model = new Model(basename($name));
}
$_model[$name] = $model;
return $model;
}
/**
+----------------------------------------------------------
* M函数用于实例化一个没有模型文件的Model
+----------------------------------------------------------
* @param string name Model名称 支持指定基础模型 例如 MongoModel:User
* @param string tablePrefix 表前缀
* @param mixed $connection 数据库连接信息
+----------------------------------------------------------
* @return Model
+----------------------------------------------------------
*/
function M($name='', $tablePrefix='',$connection='') {
static $_model = array();
if(strpos($name,':')) {
list($class,$name) = explode(':',$name);
}else{
$class = 'Model';
}
if (!isset($_model[$name . '_' . $class]))
$_model[$name . '_' . $class] = new $class($name,$tablePrefix,$connection);
return $_model[$name . '_' . $class];
}
/**
+----------------------------------------------------------
* A函数用于实例化Action 格式：[项目://][分组/]模块
+----------------------------------------------------------
* @param string name Action资源地址
+----------------------------------------------------------
* @return Action
+----------------------------------------------------------
*/
function A($name) {
static $_action = array();
if(isset($_action[$name]))
return $_action[$name];
if(strpos($name,'://')) {// 指定项目
$name = str_replace('://','/Action/',$name);
}else{
$name = '@/Action/'.$name;
}
import($name.'Action');
$class = basename($name.'Action');
if(class_exists($class,false)) {
$action = new $class();
$_action[$name] = $action;
return $action;
}else {
return false;
}
}
// 远程调用模块的操作方法
// URL 参数格式 [项目://][分组/]模块/操作
function R($url,$vars=array()) {
$info = pathinfo($url);
$action = $info['basename'];
$module = $info['dirname'];
$class = A($module);
if($class)
return call_user_func_array(array(&$class,$action),$vars);
else
return false;
}
// 获取和设置语言定义(不区分大小写)
function L($name=null, $value=null) {
static $_lang = array();
// 空参数返回所有定义
if (empty($name))
return $_lang;
// 判断语言获取(或设置)
// 若不存在,直接返回全大写$name
if (is_string($name)) {
$name = strtoupper($name);
if (is_null($value))
return isset($_lang[$name]) ? $_lang[$name] : $name;
$_lang[$name] = $value; // 语言定义
return;
}
// 批量定义
if (is_array($name))
$_lang = array_merge($_lang, array_change_key_case($name, CASE_UPPER));
return;
}
// 获取配置值
function C($name=null, $value=null) {
static $_config = array();
// 无参数时获取所有
if (empty($name)) return $_config;
// 优先执行设置获取或赋值
if (is_string($name)) {
if (!strpos($name, '.')) {
$name = strtolower($name);
if (is_null($value))
return isset($_config[$name]) ? $_config[$name] : null;
$_config[$name] = $value;
return;
}
// 二维数组设置和获取支持
$name = explode('.', $name);
$name[0] = strtolower($name[0]);
if (is_null($value))
return isset($_config[$name[0]][$name[1]]) ? $_config[$name[0]][$name[1]] : null;
$_config[$name[0]][$name[1]] = $value;
return;
}
// 批量设置
if (is_array($name)){
return $_config = array_merge($_config, array_change_key_case($name));
}
return null; // 避免非法参数
}
// 处理标签扩展
function tag($tag, &$params=NULL) {
// 系统标签扩展
$extends = C('extends.' . $tag);
// 应用标签扩展
$tags = C('tags.' . $tag);
if (!empty($tags)) {
if(empty($tags['_overlay']) && !empty($extends)) { // 合并扩展
$tags = array_unique(array_merge($extends,$tags));
}elseif(isset($tags['_overlay'])){ // 通过设置 '_overlay'=>1 覆盖系统标签
unset($tags['_overlay']);
}
}elseif(!empty($extends)) {
$tags = $extends;
}
if($tags) {
if(APP_DEBUG) {
G($tag.'Start');
Log::record('Tag[ '.$tag.' ] --START--',Log::INFO);
}
// 执行扩展
foreach ($tags as $key=>$name) {
if(!is_int($key)) { // 指定行为类的完整路径 用于模式扩展
$name = $key;
}
B($name, $params);
}
if(APP_DEBUG) { // 记录行为的执行日志
Log::record('Tag[ '.$tag.' ] --END-- [ RunTime:'.G($tag.'Start',$tag.'End',6).'s ]',Log::INFO);
}
}else{ // 未执行任何行为 返回false
return false;
}
}
// 动态添加行为扩展到某个标签
function add_tag_behavior($tag,$behavior,$path='') {
$array = C('tags.'.$tag);
if(!$array) {
$array = array();
}
if($path) {
$array[$behavior] = $path;
}else{
$array[] = $behavior;
}
C('tags.'.$tag,$array);
}
// 过滤器方法
function filter($name, &$content) {
$class = $name . 'Filter';
require_cache(LIB_PATH . 'Filter/' . $class . '.class.php');
$filter = new $class();
$content = $filter->run($content);
}
// 执行行为
function B($name, &$params=NULL) {
$class = $name.'Behavior';
G('behaviorStart');
$behavior = new $class();
$behavior->run($params);
if(APP_DEBUG) { // 记录行为的执行日志
G('behaviorEnd');
Log::record('Run '.$name.' Behavior [ RunTime:'.G('behaviorStart','behaviorEnd',6).'s ]',Log::INFO);
}
}
// 渲染输出Widget
function W($name, $data=array(), $return=false) {
$class = $name . 'Widget';
require_cache(LIB_PATH . 'Widget/' . $class . '.class.php');
if (!class_exists($class))
throw_exception(L('_CLASS_NOT_EXIST_') . ':' . $class);
$widget = Think::instance($class);
$content = $widget->render($data);
if ($return)
return $content;
else
echo $content;
}
// 去除代码中的空白和注释
function strip_whitespace($content) {
$stripStr = '';
//分析php源码
$tokens = token_get_all($content);
$last_space = false;
for ($i = 0, $j = count($tokens); $i < $j; $i++) {
if (is_string($tokens[$i])) {
$last_space = false;
$stripStr .= $tokens[$i];
} else {
switch ($tokens[$i][0]) {
//过滤各种PHP注释
case T_COMMENT:
case T_DOC_COMMENT:
break;
//过滤空格
case T_WHITESPACE:
if (!$last_space) {
$stripStr .= ' ';
$last_space = true;
}
break;
case T_START_HEREDOC:
$stripStr .= "<<<THINK\n";
break;
case T_END_HEREDOC:
$stripStr .= "THINK;\n";
for($k = $i+1; $k < $j; $k++) {
if(is_string($tokens[$k]) && $tokens[$k] == ';') {
$i = $k;
break;
} else if($tokens[$k][0] == T_CLOSE_TAG) {
break;
}
}
break;
default:
$last_space = false;
$stripStr .= $tokens[$i][1];
}
}
}
return $stripStr;
}
// 循环创建目录
function mk_dir($dir, $mode = 0777) {
if (is_dir($dir) || @mkdir($dir, $mode))
return true;
if (!mk_dir(dirname($dir), $mode))
return false;
return @mkdir($dir, $mode);
}
//[RUNTIME]
// 编译文件
function compile($filename) {
$content = file_get_contents($filename);
// 替换预编译指令
$content = preg_replace('/\/\/\[RUNTIME\](.*?)\/\/\[\/RUNTIME\]/s', '', $content);
$content = substr(trim($content), 5);
if ('?>' == substr($content, -2))
$content = substr($content, 0, -2);
return $content;
}
// 根据数组生成常量定义
function array_define($array,$check=true) {
$content = "\n";
foreach ($array as $key => $val) {
$key = strtoupper($key);
if($check) $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;
}
//[/RUNTIME]
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