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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>
// +----------------------------------------------------------------------
// $Id$
/**
+------------------------------------------------------------------------------
* Think 标准模式公共函数库
+------------------------------------------------------------------------------
* @category Think
* @package Common
* @author liu21st <liu21st@gmail.com>
* @version $Id$
+------------------------------------------------------------------------------
*/
// 错误输出
function halt($error) {
$e = array();
if (APP_DEBUG) {
//调试模式下输出错误信息
if (!is_array($error)) {
$trace = debug_backtrace();
$e['message'] = $error;
$e['file'] = $trace[0]['file'];
$e['class'] = $trace[0]['class'];
$e['function'] = $trace[0]['function'];
$e['line'] = $trace[0]['line'];
$traceInfo = '';
$time = date('y-m-d H:i:m');
foreach ($trace as $t) {
$traceInfo .= '[' . $time . '] ' . $t['file'] . ' (' . $t['line'] . ') ';
$traceInfo .= $t['class'] . $t['type'] . $t['function'] . '(';
$traceInfo .= implode(', ', $t['args']);
$traceInfo .=')<br/>';
}
$e['trace'] = $traceInfo;
} else {
$e = $error;
}
// 包含异常页面模板
include C('TMPL_EXCEPTION_FILE');
} else {
//否则定向到错误页面
$error_page = C('ERROR_PAGE');
if (!empty($error_page)) {
redirect($error_page);
} else {
if (C('SHOW_ERROR_MSG'))
$e['message'] = is_array($error) ? $error['message'] : $error;
else
$e['message'] = C('ERROR_MESSAGE');
// 包含异常页面模板
include C('TMPL_EXCEPTION_FILE');
}
}
exit;
}
// 自定义异常处理
function throw_exception($msg, $type='ThinkException', $code=0) {
if (class_exists($type, false))
throw new $type($msg, $code, true);
else
halt($msg); // 异常类型不存在则输出错误信息字串
}
// 浏览器友好的变量输出
function dump($var, $echo=true, $label=null, $strict=true) {
$label = ($label === null) ? '' : rtrim($label) . ' ';
if (!$strict) {
if (ini_get('html_errors')) {
$output = print_r($var, true);
$output = '<pre>' . $label . htmlspecialchars($output, ENT_QUOTES) . '</pre>';
} else {
$output = $label . print_r($var, true);
}
} else {
ob_start();
var_dump($var);
$output = ob_get_clean();
if (!extension_loaded('xdebug')) {
$output = preg_replace("/\]\=\>\n(\s+)/m", '] => ', $output);
$output = '<pre>' . $label . htmlspecialchars($output, ENT_QUOTES) . '</pre>';
}
}
if ($echo) {
echo($output);
return null;
}else
return $output;
}
// 区间调试开始
function debug_start($label='') {
$GLOBALS[$label]['_beginTime'] = microtime(TRUE);
if (MEMORY_LIMIT_ON)
$GLOBALS[$label]['_beginMem'] = memory_get_usage();
}
// 区间调试结束，显示指定标记到当前位置的调试
function debug_end($label='') {
$GLOBALS[$label]['_endTime'] = microtime(TRUE);
echo '<div style="text-align:center;width:100%">Process ' . $label . ': Times ' . number_format($GLOBALS[$label]['_endTime'] - $GLOBALS[$label]['_beginTime'], 6) . 's ';
if (MEMORY_LIMIT_ON) {
$GLOBALS[$label]['_endMem'] = memory_get_usage();
echo ' Memories ' . number_format(($GLOBALS[$label]['_endMem'] - $GLOBALS[$label]['_beginMem']) / 1024) . ' k';
}
echo '</div>';
}
// 添加和获取页面Trace记录
function trace($title='',$value='') {
if(!C('SHOW_PAGE_TRACE')) return;
static $_trace = array();
if(is_array($title)) { // 批量赋值
$_trace = array_merge($_trace,$title);
}elseif('' !== $value){ // 赋值
$_trace[$title] = $value;
}elseif('' !== $title){ // 取值
return $_trace[$title];
}else{ // 获取全部Trace数据
return $_trace;
}
}
// 设置当前页面的布局
function layout($layout) {
if(false !== $layout) {
// 开启布局
C('LAYOUT_ON',true);
if(is_string($layout)) {
C('LAYOUT_NAME',$layout);
}
}
}
// URL组装 支持不同模式
// 格式：U('[分组/模块/操作]?参数','参数','伪静态后缀','是否跳转','显示域名')
function U($url,$vars='',$suffix=true,$redirect=false,$domain=false) {
// 解析URL
$info = parse_url($url);
$url = !empty($info['path'])?$info['path']:ACTION_NAME;
// 解析子域名
if($domain===true){
$domain = $_SERVER['HTTP_HOST'];
if(C('APP_SUB_DOMAIN_DEPLOY') ) { // 开启子域名部署
$domain = $domain=='localhost'?'localhost':'www'.strstr($_SERVER['HTTP_HOST'],'.');
// '子域名'=>array('项目[/分组]');
foreach (C('APP_SUB_DOMAIN_RULES') as $key => $rule) {
if(false === strpos($key,'*') && 0=== strpos($url,$rule[0])) {
$domain = $key.strstr($domain,'.'); // 生成对应子域名
$url = substr_replace($url,'',0,strlen($rule[0]));
break;
}
}
}
}
// 解析参数
if(is_string($vars)) { // aaa=1&bbb=2 转换成数组
parse_str($vars,$vars);
}elseif(!is_array($vars)){
$vars = array();
}
if(isset($info['query'])) { // 解析地址里面参数 合并到vars
parse_str($info['query'],$params);
$vars = array_merge($params,$vars);
}
// URL组装
$depr = C('URL_PATHINFO_DEPR');
if($url) {
if(0=== strpos($url,'/')) {// 定义路由
$route = true;
$url = substr($url,1);
if('/' != $depr) {
$url = str_replace('/',$depr,$url);
}
}else{
if('/' != $depr) { // 安全替换
$url = str_replace('/',$depr,$url);
}
// 解析分组、模块和操作
$url = trim($url,$depr);
$path = explode($depr,$url);
$var = array();
$var[C('VAR_ACTION')] = !empty($path)?array_pop($path):ACTION_NAME;
$var[C('VAR_MODULE')] = !empty($path)?array_pop($path):MODULE_NAME;
if(C('URL_CASE_INSENSITIVE')) {
$var[C('VAR_MODULE')] = parse_name($var[C('VAR_MODULE')]);
}
if(C('APP_GROUP_LIST')) {
if(!empty($path)) {
$group = array_pop($path);
$var[C('VAR_GROUP')] = $group;
}else{
if(GROUP_NAME != C('DEFAULT_GROUP')) {
$var[C('VAR_GROUP')] = GROUP_NAME;
}
}
}
}
}
if(C('URL_MODEL') == 0) { // 普通模式URL转换
$url = __APP__.'?'.http_build_query($var);
if(!empty($vars)) {
$vars = http_build_query($vars);
$url .= '&'.$vars;
}
}else{ // PATHINFO模式或者兼容URL模式
if(isset($route)) {
$url = __APP__.'/'.$url;
}else{
$url = __APP__.'/'.implode($depr,array_reverse($var));
}
if(!empty($vars)) { // 添加参数
$vars = http_build_query($vars);
$url .= $depr.str_replace(array('=','&'),$depr,$vars);
}
if($suffix) {
$suffix = $suffix===true?C('URL_HTML_SUFFIX'):$suffix;
if($suffix) {
$url .= '.'.ltrim($suffix,'.');
}
}
}
if($domain) {
$url = 'http://'.$domain.$url;
}
if($redirect) // 直接跳转URL
redirect($url);
else
return $url;
}
// URL重定向
function redirect($url, $time=0, $msg='') {
//多行URL地址支持
$url = str_replace(array("\n", "\r"), '', $url);
if (empty($msg))
$msg = "系统将在{$time}秒之后自动跳转到{$url}！";
if (!headers_sent()) {
// redirect
if (0 === $time) {
header('Location: ' . $url);
} else {
header("refresh:{$time};url={$url}");
echo($msg);
}
exit();
} else {
$str = "<meta http-equiv='Refresh' content='{$time};URL={$url}'>";
if ($time != 0)
$str .= $msg;
exit($str);
}
}
// 全局缓存设置和读取
function S($name, $value='', $expire=null, $type='',$options=null) {
static $_cache = array();
//取得缓存对象实例
$cache = Cache::getInstance($type,$options);
if ('' !== $value) {
if (is_null($value)) {
// 删除缓存
$result = $cache->rm($name);
if ($result)
unset($_cache[$type . '_' . $name]);
return $result;
}else {
// 缓存数据
$cache->set($name, $value, $expire);
$_cache[$type . '_' . $name] = $value;
}
return;
}
if (isset($_cache[$type . '_' . $name]))
return $_cache[$type . '_' . $name];
// 获取缓存数据
$value = $cache->get($name);
$_cache[$type . '_' . $name] = $value;
return $value;
}
// 快速文件数据读取和保存 针对简单类型数据 字符串、数组
function F($name, $value='', $path=DATA_PATH) {
static $_cache = array();
$filename = $path . $name . '.php';
if ('' !== $value) {
if (is_null($value)) {
// 删除缓存
return unlink($filename);
} else {
// 缓存数据
$dir = dirname($filename);
// 目录不存在则创建
if (!is_dir($dir))
mkdir($dir);
$_cache[$name] = $value;
return file_put_contents($filename, strip_whitespace("<?php\nreturn " . var_export($value, true) . ";\n?>"));
}
}
if (isset($_cache[$name]))
return $_cache[$name];
// 获取缓存数据
if (is_file($filename)) {
$value = include $filename;
$_cache[$name] = $value;
} else {
$value = false;
}
return $value;
}
// 取得对象实例 支持调用类的静态方法
function get_instance_of($name, $method='', $args=array()) {
static $_instance = array();
$identify = empty($args) ? $name . $method : $name . $method . to_guid_string($args);
if (!isset($_instance[$identify])) {
if (class_exists($name)) {
$o = new $name();
if (method_exists($o, $method)) {
if (!empty($args)) {
$_instance[$identify] = call_user_func_array(array(&$o, $method), $args);
} else {
$_instance[$identify] = $o->$method();
}
}
else
$_instance[$identify] = $o;
}
else
halt(L('_CLASS_NOT_EXIST_') . ':' . $name);
}
return $_instance[$identify];
}
// 根据PHP各种类型变量生成唯一标识号
function to_guid_string($mix) {
if (is_object($mix) && function_exists('spl_object_hash')) {
return spl_object_hash($mix);
} elseif (is_resource($mix)) {
$mix = get_resource_type($mix) . strval($mix);
} else {
$mix = serialize($mix);
}
return md5($mix);
}
// xml编码
function xml_encode($data, $encoding='utf-8', $root='think') {
$xml = '<?xml version="1.0" encoding="' . $encoding . '"?>';
$xml.= '<' . $root . '>';
$xml.= data_to_xml($data);
$xml.= '</' . $root . '>';
return $xml;
}
function data_to_xml($data) {
$xml = '';
foreach ($data as $key => $val) {
is_numeric($key) && $key = "item id=\"$key\"";
$xml.="<$key>";
$xml.= ( is_array($val) || is_object($val)) ? data_to_xml($val) : $val;
list($key, ) = explode(' ', $key);
$xml.="</$key>";
}
return $xml;
}
// session管理函数
function session($name,$value='') {
$prefix = C('SESSION_PREFIX');
if(is_array($name)) { // session初始化 在session_start 之前调用
if(isset($name['prefix'])) C('SESSION_PREFIX',$name['prefix']);
if(isset($_REQUEST[C('VAR_SESSION_ID')])){
session_id($_REQUEST[C('VAR_SESSION_ID')]);
}elseif(isset($name['id'])) {
session_id($name['id']);
}
ini_set('session.auto_start', 0);
if(isset($name['name'])) session_name($name['name']);
if(isset($name['path'])) session_save_path($name['path']);
if(isset($name['domain'])) ini_set('session.cookie_domain', $name['domain']);
if(isset($name['expire'])) ini_set('session.gc_maxlifetime', $name['expire']);
if(isset($name['use_trans_sid'])) ini_set('session.use_trans_sid', $name['use_trans_sid']?1:0);
if(isset($name['use_cookies'])) ini_set('session.use_cookies', $name['use_cookies']?1:0);
if(isset($name['type'])) C('SESSION_TYPE',$name['type']);
if(C('SESSION_TYPE')) { // 读取session驱动
$class = 'Session'. ucwords(strtolower(C('SESSION_TYPE')));
// 检查驱动类
if(require_cache(EXTEND_PATH.'Driver/Session/'.$class.'.class.php')) {
$hander = new $class();
$hander->execute();
}else {
// 类没有定义
throw_exception(L('_CLASS_NOT_EXIST_').': ' . $class);
}
}
// 启动session
if(C('SESSION_AUTO_START')) session_start();
}elseif('' === $value){
if(0===strpos($name,'[')) { // session 操作
if('[pause]'==$name){ // 暂停session
session_write_close();
}elseif('[start]'==$name){ // 启动session
session_start();
}elseif('[destroy]'==$name){ // 销毁session
$_SESSION = array();
session_unset();
session_destroy();
}elseif('[regenerate]'==$name){ // 重新生成id
session_regenerate_id();
}
}elseif(0===strpos($name,'?')){ // 检查session
$name = substr($name,1);
if($prefix) {
return isset($_SESSION[$prefix][$name]);
}else{
return isset($_SESSION[$name]);
}
}elseif(is_null($name)){ // 清空session
if($prefix) {
unset($_SESSION[$prefix]);
}else{
$_SESSION = array();
}
}elseif($prefix){ // 获取session
return $_SESSION[$prefix][$name];
}else{
return $_SESSION[$name];
}
}elseif(is_null($value)){ // 删除session
if($prefix){
unset($_SESSION[$prefix][$name]);
}else{
unset($_SESSION[$name]);
}
}else{ // 设置session
if($prefix){
if (!is_array($_SESSION[$prefix])) {
$_SESSION[$prefix] = array();
}
$_SESSION[$prefix][$name] = $value;
}else{
$_SESSION[$name] = $value;
}
}
}
// Cookie 设置、获取、删除
function cookie($name, $value='', $option=null) {
// 默认设置
$config = array(
'prefix' => C('COOKIE_PREFIX'), // cookie 名称前缀
'expire' => C('COOKIE_EXPIRE'), // cookie 保存时间
'path' => C('COOKIE_PATH'), // cookie 保存路径
'domain' => C('COOKIE_DOMAIN'), // cookie 有效域名
);
// 参数设置(会覆盖黙认设置)
if (!empty($option)) {
if (is_numeric($option))
$option = array('expire' => $option);
elseif (is_string($option))
parse_str($option, $option);
$config = array_merge($config, array_change_key_case($option));
}
// 清除指定前缀的所有cookie
if (is_null($name)) {
if (empty($_COOKIE))
return;
// 要删除的cookie前缀，不指定则删除config设置的指定前缀
$prefix = empty($value) ? $config['prefix'] : $value;
if (!empty($prefix)) {// 如果前缀为空字符串将不作处理直接返回
foreach ($_COOKIE as $key => $val) {
if (0 === stripos($key, $prefix)) {
setcookie($key, '', time() - 3600, $config['path'], $config['domain']);
unset($_COOKIE[$key]);
}
}
}
return;
}
$name = $config['prefix'] . $name;
if ('' === $value) {
return isset($_COOKIE[$name]) ? $_COOKIE[$name] : null; // 获取指定Cookie
} else {
if (is_null($value)) {
setcookie($name, '', time() - 3600, $config['path'], $config['domain']);
unset($_COOKIE[$name]); // 删除指定cookie
} else {
// 设置cookie
$expire = !empty($config['expire']) ? time() + intval($config['expire']) : 0;
setcookie($name, $value, $expire, $config['path'], $config['domain']);
$_COOKIE[$name] = $value;
}
}
}
// 加载扩展配置文件
function load_ext_file() {
// 加载自定义外部文件
if(C('LOAD_EXT_FILE')) {
$files = explode(',',C('LOAD_EXT_FILE'));
foreach ($files as $file){
$file = COMMON_PATH.$file.'.php';
if(is_file($file)) include $file;
}
}
// 加载自定义的动态配置文件
if(C('LOAD_EXT_CONFIG')) {
$configs = C('LOAD_EXT_CONFIG');
if(is_string($configs)) $configs = explode(',',$configs);
foreach ($configs as $key=>$config){
$file = CONF_PATH.$config.'.php';
if(is_file($file)) {
is_numeric($key)?C(include $file):C($key,include $file);
}
}
}
}
// 获取客户端IP地址
function get_client_ip() {
static $ip = NULL;
if ($ip !== NULL) return $ip;
if (isset($_SERVER['HTTP_X_FORWARDED_FOR'])) {
$arr = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
$pos = array_search('unknown',$arr);
if(false !== $pos) unset($arr[$pos]);
$ip = trim($arr[0]);
}elseif (isset($_SERVER['HTTP_CLIENT_IP'])) {
$ip = $_SERVER['HTTP_CLIENT_IP'];
}elseif (isset($_SERVER['REMOTE_ADDR'])) {
$ip = $_SERVER['REMOTE_ADDR'];
}
// IP地址合法验证
$ip = (false !== ip2long($ip)) ? $ip : '0.0.0.0';
return $ip;
}
function send_http_status($code) {
static $_status = array(
// Success 2xx
200 => 'OK',
// Redirection 3xx
301 => 'Moved Permanently',
302 => 'Moved Temporarily ', // 1.1
// Client Error 4xx
400 => 'Bad Request',
403 => 'Forbidden',
404 => 'Not Found',
// Server Error 5xx
500 => 'Internal Server Error',
503 => 'Service Unavailable',
);
if(isset($_status[$code])) {
header('HTTP/1.1 '.$code.' '.$_status[$code]);
// 确保FastCGI模式下正常
header('Status:'.$code.' '.$_status[$code]);
}
}
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