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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>
- // +----------------------------------------------------------------------
- /**
- * Think 标准模式公共函数库
- * @category Think
- * @package Common
- * @author liu21st <liu21st@gmail.com>
- */
- /**
- * 错误输出
- * @param mixed $error 错误
- * @return void
- */
- function halt($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['line'] = $trace[0]['line'];
- ob_start();
- debug_print_backtrace();
- $e['trace'] = ob_get_clean();
- } else {
- $e = $error;
- }
- } 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
- * @param string $msg 异常消息
- * @param string $type 异常类型 默认为ThinkException
- * @param integer $code 异常代码 默认为0
- * @return void
- */
- function throw_exception($msg, $type='ThinkException', $code=0) {
- if (class_exists($type, false))
- throw new $type($msg, $code);
- else
- halt($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
- * @param mixed $var 变量
- * @param boolean $echo 是否输出 默认为True 如果为false 则返回输出字符串
- * @param string $label 标签 默认为空
- * @param boolean $strict 是否严谨 默认为true
- * @return void|string
- */
- function dump($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;
- }
- /**
- * 404处理
- * 调试模式会抛异常
- * 部署模式下面传入url参数可以指定跳转页面,否则发送404信息
- * @param string $msg 提示信息
- * @param string $url 跳转URL地址
- * @return void
- */
- function _404($msg='',$url='') {
- APP_DEBUG && throw_exception($msg);
- if($msg && C('LOG_EXCEPTION_RECORD')) Log::write($msg);
- if(empty($url) && C('URL_404_REDIRECT')) {
- $url = C('URL_404_REDIRECT');
- }
- if($url) {
- redirect($url);
- }else{
- send_http_status(404);
- exit;
- }
- }
- /**
- * 设置当前页面的布局
- * @param string|false $layout 布局名称 为false的时候表示关闭布局
- * @return void
- */
- function layout($layout) {
- if(false !== $layout) {
- // 开启布局
- C('LAYOUT_ON',true);
- if(is_string($layout)) { // 设置新的布局模板
- C('LAYOUT_NAME',$layout);
- }
- }else{// 临时关闭布局
- C('LAYOUT_ON',false);
- }
- }
- /**
- * URL组装 支持不同URL模式
- * @param string $url URL表达式,格式:'[分组/模块/操作#锚点@域名]?参数1=值1&参数2=值2...'
- * @param string|array $vars 传入的参数,支持数组和字符串
- * @param string $suffix 伪静态后缀,默认为true表示获取配置值
- * @param boolean $redirect 是否跳转,如果设置为true则表示跳转到该URL地址
- * @param boolean $domain 是否显示域名
- * @return string
- */
- function U($url='',$vars='',$suffix=true,$redirect=false,$domain=false) {
- // 解析URL
- $info = parse_url($url);
- $url = !empty($info['path'])?$info['path']:ACTION_NAME;
- if(isset($info['fragment'])) { // 解析锚点
- $anchor = $info['fragment'];
- if(false !== strpos($anchor,'?')) { // 解析参数
- list($anchor,$info['query']) = explode('?',$anchor,2);
- }
- if(false !== strpos($anchor,'@')) { // 解析域名
- list($anchor,$host) = explode('@',$anchor, 2);
- }
- }elseif(false !== strpos($url,'@')) { // 解析域名
- list($url,$host) = explode('@',$info['path'], 2);
- }
- // 解析子域名
- if(isset($host)) {
- $domain = $host.(strpos($host,'.')?'':strstr($_SERVER['HTTP_HOST'],'.'));
- }elseif($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($path):MODULE_NAME;
- if($maps = C('URL_ACTION_MAP')) {
- if(isset($maps[strtolower($var[C('VAR_MODULE')])])) {
- $maps = $maps[strtolower($var[C('VAR_MODULE')])];
- if($action = array_search(strtolower($var[C('VAR_ACTION')]),$maps)){
- $var[C('VAR_ACTION')] = $action;
- }
- }
- }
- if($maps = C('URL_MODULE_MAP')) {
- if($module = array_search(strtolower($var[C('VAR_MODULE')]),$maps)){
- $var[C('VAR_MODULE')] = $module;
- }
- }
- if(C('URL_CASE_INSENSITIVE')) {
- $var[C('VAR_MODULE')] = parse_name($var[C('VAR_MODULE')]);
- }
- if(!C('APP_SUB_DOMAIN_DEPLOY') && C('APP_GROUP_LIST')) {
- if(!empty($path)) {
- $group = array_pop($path);
- $var[C('VAR_GROUP')] = $group;
- }else{
- if(GROUP_NAME != C('DEFAULT_GROUP')) {
- $var[C('VAR_GROUP')]= GROUP_NAME;
- }
- }
- if(C('URL_CASE_INSENSITIVE') && isset($var[C('VAR_GROUP')])) {
- $var[C('VAR_GROUP')] = strtolower($var[C('VAR_GROUP')]);
- }
- }
- }
- }
- if(C('URL_MODEL') == 0) { // 普通模式URL转换
- $url = __APP__.'?'.http_build_query(array_reverse($var));
- if(!empty($vars)) {
- $vars = urldecode(http_build_query($vars));
- $url .= '&'.$vars;
- }
- }else{ // PATHINFO模式或者兼容URL模式
- if(isset($route)) {
- $url = __APP__.'/'.rtrim($url,$depr);
- }else{
- $url = __APP__.'/'.implode($depr,array_reverse($var));
- }
- if(!empty($vars)) { // 添加参数
- foreach ($vars as $var => $val){
- if('' !== trim($val)) $url .= $depr . $var . $depr . urlencode($val);
- }
- }
- if($suffix) {
- $suffix = $suffix===true?C('URL_HTML_SUFFIX'):$suffix;
- if($pos = strpos($suffix, '|')){
- $suffix = substr($suffix, 0, $pos);
- }
- if($suffix && '/' != substr($url,-1)){
- $url .= '.'.ltrim($suffix,'.');
- }
- }
- }
- if(isset($anchor)){
- $url .= '#'.$anchor;
- }
- if($domain) {
- $url = (is_ssl()?'https://':'http://').$domain.$url;
- }
- if($redirect) // 直接跳转URL
- redirect($url);
- else
- return $url;
- }
- /**
- * 渲染输出Widget
- * @param string $name Widget名称
- * @param array $data 传入的参数
- * @param boolean $return 是否返回内容
- * @param string $path Widget所在路径
- * @return void
- */
- function W($name, $data=array(), $return=false,$path='') {
- $class = $name . 'Widget';
- $path = empty($path) ? BASE_LIB_PATH : $path;
- require_cache($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;
- }
- /**
- * 过滤器方法 引用传值
- * @param string $name 过滤器名称
- * @param string $content 要过滤的内容
- * @return void
- */
- function filter($name, &$content) {
- $class = $name . 'Filter';
- require_cache(BASE_LIB_PATH . 'Filter/' . $class . '.class.php');
- $filter = new $class();
- $content = $filter->run($content);
- }
- /**
- * 判断是否SSL协议
- * @return boolean
- */
- function is_ssl() {
- if(isset($_SERVER['HTTPS']) && ('1' == $_SERVER['HTTPS'] || 'on' == strtolower($_SERVER['HTTPS']))){
- return true;
- }elseif(isset($_SERVER['SERVER_PORT']) && ('443' == $_SERVER['SERVER_PORT'] )) {
- return true;
- }
- return false;
- }
- /**
- * URL重定向
- * @param string $url 重定向的URL地址
- * @param integer $time 重定向的等待时间(秒)
- * @param string $msg 重定向前的提示信息
- * @return void
- */
- function redirect($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);
- }
- }
- /**
- * 缓存管理
- * @param mixed $name 缓存名称,如果为数组表示进行缓存设置
- * @param mixed $value 缓存值
- * @param mixed $options 缓存参数
- * @return mixed
- */
- function S($name,$value='',$options=null) {
- static $cache = '';
- if(is_array($options) && empty($cache)){
- // 缓存操作的同时初始化
- $type = isset($options['type'])?$options['type']:'';
- $cache = Cache::getInstance($type,$options);
- }elseif(is_array($name)) { // 缓存初始化
- $type = isset($name['type'])?$name['type']:'';
- $cache = Cache::getInstance($type,$name);
- return $cache;
- }elseif(empty($cache)) { // 自动初始化
- $cache = Cache::getInstance();
- }
- if(''=== $value){ // 获取缓存
- return $cache->get($name);
- }elseif(is_null($value)) { // 删除缓存
- return $cache->rm($name);
- }else { // 缓存数据
- if(is_array($options)) {
- $expire = isset($options['expire'])?$options['expire']:NULL;
- }else{
- $expire = is_numeric($options)?$options:NULL;
- }
- return $cache->set($name, $value, $expire);
- }
- }
- // S方法的别名 已经废除 不再建议使用
- function cache($name,$value='',$options=null){
- return S($name,$value,$options);
- }
- /**
- * 快速文件数据读取和保存 针对简单类型数据 字符串、数组
- * @param string $name 缓存名称
- * @param mixed $value 缓存值
- * @param string $path 缓存路径
- * @return mixed
- */
- function F($name, $value='', $path=DATA_PATH) {
- static $_cache = array();
- $filename = $path . $name . '.php';
- if ('' !== $value) {
- if (is_null($value)) {
- // 删除缓存
- return false !== strpos($name,'*')?array_map("unlink", glob($filename)):unlink($filename);
- } else {
- // 缓存数据
- $dir = dirname($filename);
- // 目录不存在则创建
- if (!is_dir($dir))
- mkdir($dir,0755,true);
- $_cache[$name] = $value;
- return file_put_contents($filename, strip_whitespace("<?php\treturn " . var_export($value, true) . ";?>"));
- }
- }
- if (isset($_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
- * @param string $name 类名
- * @param string $method 方法名,如果为空则返回实例化对象
- * @param array $args 调用参数
- * @return object
- */
- function get_instance_of($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
- * @param mixed $mix 变量
- * @return string
- */
- function to_guid_string($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
- * @param mixed $data 数据
- * @param string $root 根节点名
- * @param string $item 数字索引的子节点名
- * @param string $attr 根节点属性
- * @param string $id 数字索引子节点key转换的属性名
- * @param string $encoding 数据编码
- * @return string
- */
- function xml_encode($data, $root='think', $item='item', $attr='', $id='id', $encoding='utf-8') {
- if(is_array($attr)){
- $_attr = array();
- foreach ($attr as $key => $value) {
- $_attr[] = "{$key}=\"{$value}\"";
- }
- $attr = implode(' ', $_attr);
- }
- $attr = trim($attr);
- $attr = empty($attr) ? '' : " {$attr}";
- $xml = "<?xml version=\"1.0\" encoding=\"{$encoding}\"?>";
- $xml .= "<{$root}{$attr}>";
- $xml .= data_to_xml($data, $item, $id);
- $xml .= "</{$root}>";
- return $xml;
- }
- /**
- * 数据XML编码
- * @param mixed $data 数据
- * @param string $item 数字索引时的节点名称
- * @param string $id 数字索引key转换为的属性名
- * @return string
- */
- function data_to_xml($data, $item='item', $id='id') {
- $xml = $attr = '';
- foreach ($data as $key => $val) {
- if(is_numeric($key)){
- $id && $attr = " {$id}=\"{$key}\"";
- $key = $item;
- }
- $xml .= "<{$key}{$attr}>";
- $xml .= (is_array($val) || is_object($val)) ? data_to_xml($val, $item, $id) : $val;
- $xml .= "</{$key}>";
- }
- return $xml;
- }
- /**
- * session管理函数
- * @param string|array $name session名称 如果为数组则表示进行session设置
- * @param mixed $value session值
- * @return mixed
- */
- function session($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(C('VAR_SESSION_ID') && 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['cache_limiter'])) session_cache_limiter($name['cache_limiter']);
- if(isset($name['cache_expire'])) session_cache_expire($name['cache_expire']);
- if(isset($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(strpos($name,'.')){ // 支持数组
- list($name1,$name2) = explode('.',$name);
- return $prefix?isset($_SESSION[$prefix][$name1][$name2]):isset($_SESSION[$name1][$name2]);
- }else{
- return $prefix?isset($_SESSION[$prefix][$name]):isset($_SESSION[$name]);
- }
- }elseif(is_null($name)){ // 清空session
- if($prefix) {
- unset($_SESSION[$prefix]);
- }else{
- $_SESSION = array();
- }
- }elseif($prefix){ // 获取session
- if(strpos($name,'.')){
- list($name1,$name2) = explode('.',$name);
- return isset($_SESSION[$prefix][$name1][$name2])?$_SESSION[$prefix][$name1][$name2]:null;
- }else{
- return isset($_SESSION[$prefix][$name])?$_SESSION[$prefix][$name]:null;
- }
- }else{
- if(strpos($name,'.')){
- list($name1,$name2) = explode('.',$name);
- return isset($_SESSION[$name1][$name2])?$_SESSION[$name1][$name2]:null;
- }else{
- return isset($_SESSION[$name])?$_SESSION[$name]:null;
- }
- }
- }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
- * @param string $name cookie名称
- * @param mixed $value cookie值
- * @param mixed $options cookie参数
- * @return mixed
- */
- function cookie($name, $value='', $option=null) {
- // 默认设置
- $config = array(
- 'prefix' => C('COOKIE_PREFIX'), // cookie 名称前缀
- 'expire' => C('COOKIE_EXPIRE'), // cookie 保存时间
- 'path' => C('COOKIE_PATH'), // cookie 保存路径
- 'domain' => C('COOKIE_DOMAIN'), // cookie 有效域名
- );
- // 参数设置(会覆盖黙认设置)
- if (!is_null($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 ('' === $value) {
- if(isset($_COOKIE[$name])){
- $value = $_COOKIE[$name];
- if(0===strpos($value,'think:')){
- $value = substr($value,6);
- return array_map('urldecode',json_decode(MAGIC_QUOTES_GPC?stripslashes($value):$value,true));
- }else{
- return $value;
- }
- }else{
- return null;
- }
- } else {
- if (is_null($value)) {
- setcookie($name, '', time() - 3600, $config['path'], $config['domain']);
- unset($_COOKIE[$name]); // 删除指定cookie
- } else {
- // 设置cookie
- if(is_array($value)){
- $value = 'think:'.json_encode(array_map('urlencode',$value));
- }
- $expire = !empty($config['expire']) ? time() + intval($config['expire']) : 0;
- setcookie($name, $value, $expire, $config['path'], $config['domain']);
- $_COOKIE[$name] = $value;
- }
- }
- }
- /**
- * 加载动态扩展文件
- * @return void
- */
- 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
- * @param integer $type 返回类型 0 返回IP地址 1 返回IPV4地址数字
- * @return mixed
- */
- function get_client_ip($type = 0) {
- $type = $type ? 1 : 0;
- static $ip = NULL;
- if ($ip !== NULL) return $ip[$type];
- 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
- $long = sprintf("%u",ip2long($ip));
- $ip = $long ? array($ip, $long) : array('0.0.0.0', 0);
- return $ip[$type];
- }
- /**
- * 发送HTTP状态
- * @param integer $code 状态码
- * @return void
- */
- function send_http_status($code) {
- static $_status = array(
- // Informational 1xx
- 100 => 'Continue',
- 101 => 'Switching Protocols',
- // Success 2xx
- 200 => 'OK',
- 201 => 'Created',
- 202 => 'Accepted',
- 203 => 'Non-Authoritative Information',
- 204 => 'No Content',
- 205 => 'Reset Content',
- 206 => 'Partial Content',
- // Redirection 3xx
- 300 => 'Multiple Choices',
- 301 => 'Moved Permanently',
- 302 => 'Moved Temporarily ', // 1.1
- 303 => 'See Other',
- 304 => 'Not Modified',
- 305 => 'Use Proxy',
- // 306 is deprecated but reserved
- 307 => 'Temporary Redirect',
- // Client Error 4xx
- 400 => 'Bad Request',
- 401 => 'Unauthorized',
- 402 => 'Payment Required',
- 403 => 'Forbidden',
- 404 => 'Not Found',
- 405 => 'Method Not Allowed',
- 406 => 'Not Acceptable',
- 407 => 'Proxy Authentication Required',
- 408 => 'Request Timeout',
- 409 => 'Conflict',
- 410 => 'Gone',
- 411 => 'Length Required',
- 412 => 'Precondition Failed',
- 413 => 'Request Entity Too Large',
- 414 => 'Request-URI Too Long',
- 415 => 'Unsupported Media Type',
- 416 => 'Requested Range Not Satisfiable',
- 417 => 'Expectation Failed',
- // Server Error 5xx
- 500 => 'Internal Server Error',
- 501 => 'Not Implemented',
- 502 => 'Bad Gateway',
- 503 => 'Service Unavailable',
- 504 => 'Gateway Timeout',
- 505 => 'HTTP Version Not Supported',
- 509 => 'Bandwidth Limit Exceeded'
- );
- if(isset($_status[$code])) {
- header('HTTP/1.1 '.$code.' '.$_status[$code]);
- // 确保FastCGI模式下正常
- header('Status:'.$code.' '.$_status[$code]);
- }
- }
- // 过滤表单中的表达式
- function filter_exp(&$value){
- if (in_array(strtolower($value),array('exp','or'))){
- $value .= ' ';
- }
- }
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