一些实用的公共方法！！！

<?php
/**
* 公共方法
*/

/**
* 去除多余的转义字符
*/
function doStripslashes(){
   if(!get_magic_quotes_gpc()){
       $_GET = stripslashesDeep($_GET);
       $_POST = stripslashesDeep($_POST);
       $_COOKIE = stripslashesDeep($_COOKIE);
       $_REQUEST = stripslashesDeep($_REQUEST);
   }
}

/**
* 递归去除转义字符
*/
function stripslashesDeep($value){
$value = is_array($value) ? array_map('stripslashesDeep', $value) : addslashes($value);
return $value;
}

/**
* 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);
}
}

/**
* 得到网站的网址
*/
function getWebUrl() {
   $phpself = isset($_SERVER['SCRIPT_NAME']) ? $_SERVER['SCRIPT_NAME'] : '';
   if(preg_match("/^.*\//", $phpself, $matches)){
       return 'https://' . $_SERVER['HTTP_HOST'] . $matches[0];
   }else{
       return '';
   }
}
/**
* 得到网址的顶级域名
*/
function getUrlTopDomain($url){
   $domain_array = parse_url($url);
   $host = strtolower($domain_array['host']);
   $two_suffix = array('.com.cn','.gov.cn','.net.cn','.org.cn','.ac.cn');
   foreach($two_suffix as $key=>$value){
       preg_match('#(.*?)'.$value.'$#',$host,$match_arr);
       if(!empty($match_arr)){
           $match_array = $match_arr;
           break;
       }
   }
   $host_arr = explode('.',$host);
   if(!empty($match_array)){
       $host_arr_last1 = array_pop($host_arr);
       $host_arr_last2 = array_pop($host_arr);
       $host_arr_last3 = array_pop($host_arr);

       return $host_arr_last3.'.'.$host_arr_last2.'.'.$host_arr_last1;
   }else{
       $host_arr_last1 = array_pop($host_arr);
       $host_arr_last2 = array_pop($host_arr);
       return $host_arr_last2.'.'.$host_arr_last1;
   }
}
/**
* 得到网址的域名
*/
function getUrlDomain($url){
   $domain_array = parse_url($url);
   $host = strtolower($domain_array['host']);
   return $host;
}

/**
* 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;
}

/**
* 快速哈希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 mixed $level 缓存的目录数
* @param string $path 缓存路径
* @return mixed
*/
function S($name, $value='',$time=0,$level=2,$path=CACHE_PATH){
static $_scache = array();
   $name = md5($name);
   $haxi_dir = '';
   for($i=0;$i<$level;$i++){
       $haxi_dir .= $name[$i].'/';
   }
$filename = $path . $haxi_dir . $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);

           $save_file['content'] = $value;
           if($time > 0){
               $save_file['expire_time'] = $_SERVER['REQUEST_TIME'] + $time;
           }
$_scache[$name] = $value;
return file_put_contents($filename, strip_whitespace("<?php\treturn " . var_export($save_file, true) . ";?>"));
}
}
if (isset($_scache[$name]))
return $_scache[$name];
// 获取缓存数据
if (is_file($filename)) {
$value = include $filename;
       if(!empty($value['expire_time']) && $value['expire_time']<$_SERVER['REQUEST_TIME']){
           strpos($name,'*') ? array_map("unlink",glob($filename)) : unlink($filename);
           $return = false;
       }
       $return = $value['content'];
$_scache[$name] = $return;
} else {
$return = false;
}
return $return;
}

/**
* 去除代码中的空白和注释
* @param string $content 代码内容
* @return string
*/
function strip_whitespace($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;
}

/**
* 自动加载
*/
function __autoload($class){
   if(file_exists(PIGCMS_PATH.(APP_PATH?APP_PATH:'library/').'controller/'.GROUP_NAME.'/'.$class.'.php')){
       require_once(PIGCMS_PATH.(APP_PATH?APP_PATH:'library/').'controller/'.GROUP_NAME.'/'.$class.'.php');
       return;
   }else if(file_exists(PIGCMS_PATH.(APP_PATH?APP_PATH:'library/').'controller/'.$class.'.php')) {
       require_once(PIGCMS_PATH.(APP_PATH?APP_PATH:'library/').'controller/'.$class.'.php');
       return;
   }else if(file_exists(PIGCMS_PATH.'library/model/'.$class.'.php')){
       require_once(PIGCMS_PATH.'library/model/'.$class.'.php');
       return;
   }else if(file_exists(PIGCMS_PATH.'library/class/'.$class.'.class.php')){
       require_once(PIGCMS_PATH.'library/class/'.$class.'.class.php');
       return;
   }else if(file_exists(PIGCMS_PATH.'source/class/'.$class.'.class.php')){
       require_once(PIGCMS_PATH.'source/class/'.$class.'.class.php');
       return;
   }

   $class = strtolower($class);
   if(file_exists(PIGCMS_PATH.(APP_PATH?APP_PATH:'library/').'controller/'.GROUP_NAME.'/'.$class.'.php')){
       require_once(PIGCMS_PATH.(APP_PATH?APP_PATH:'library/').'controller/'.GROUP_NAME.'/'.$class.'.php');
   }else if(file_exists(PIGCMS_PATH.(APP_PATH?APP_PATH:'library/').'controller/'.$class.'.php')) {
       require_once(PIGCMS_PATH.(APP_PATH?APP_PATH:'library/').'controller/'.$class.'.php');
   }else if(file_exists(PIGCMS_PATH.'library/model/'.$class.'.php')){
       require_once(PIGCMS_PATH.'library/model/'.$class.'.php');
   }else if(file_exists(PIGCMS_PATH.'library/class/'.$class.'.class.php')){
       require_once(PIGCMS_PATH.'library/class/'.$class.'.class.php');
   }else if(file_exists(PIGCMS_PATH.'source/class/'.$class.'.class.php')){

       require_once(PIGCMS_PATH.'source/class/'.$class.'.class.php');
   }else{
       pigcms_tips($class . ' 类不存在。','none');
   }
}

/**
* 加载文件
*
*/
function import($file,$path=''){
   $file_arr = explode('.',$file);
   $file_arr_count = count($file_arr);
   if(class_exists($file_arr[$file_arr_count-1],false)) return false;
   switch($file_arr_count){
       case 1:
           if(substr($file_arr[0],0,1) == '@'){
               $load_file = PIGCMS_PATH.'library/class/'.substr($file_arr[0],1).'.class.php';
           }else{
               $load_file = PIGCMS_PATH.'source/class/'.$file_arr[0].'.class.php';
           }
           break;
       case 2:
           if(substr($file_arr[0],0,1) == '@'){
               $load_file = PIGCMS_PATH.'library/'.substr($file_arr[0],1).'/'.$file_arr[1].'.class.php';
           }else{
               $load_file = PIGCMS_PATH.'source/'.$file_arr[0].'/'.$file_arr[1].'.class.php';
           }
           break;
       case 3:
           $load_file = PIGCMS_PATH.$file_arr[0].'/'.$file_arr[1].'/'.$file_arr[2].'.class.php';
           break;
       default:
           $file_data = '';
           foreach($file_arr as $val){
               if($file_data == ''){
                   $file_data = $val;
               }else{
                   $file_data .= '/'.$val;
               }
           }
           $load_file = PIGCMS_PATH.$file_data.'.class.php';
   }
   require_file($load_file);
}

/**
* 调用数据库类
*/
function D($table='',$other=array()){
   static $db_list;
   import('source.class.mysql');
   if(empty($other)){
       if (!empty($table) && isset($db_list[$table])) {
           return $db_list[$table];
       }
       $db = new mysql();

       if($table){
           $db_list[$table] = $db;
           $db->table($table);
       }
   }else{
       $db = new mysql($other);
       $db->table($table);
   }

return $db;
}

/**
* 引入并使用控制器的方法
*/
function R($group,$mode,$action){
   $mode = strtolower($mode);
   $mode_file = PIGCMS_PATH.(APP_PATH?APP_PATH:'library/').'controller/'.$group.'/'.$mode.'_controller.php';
   if(file_exists($mode_file)){
       $mode_name = $mode.'_controller';
       require($mode_file);
       if(!class_exists($mode_name)){
           pigcms_tips($mode_name.' 类不存在。','none');
       }
       $mode_obj = new $mode_name;
       if(!method_exists($mode_obj,$action)){
           if(method_exists($mode_obj,'_empty')){
               $action = '_empty';
           }else{
               pigcms_tips($action.' 方法不存在。','none');
           }
       }
       $mode_obj->$action();
   }else if(file_exists(TPL_PATH.'/'.ACTION_NAME.'.php')){
       display();
   }else{
       if(DEBUG){
           pigcms_tips($mode_file.' 控制器文件不存在。','none');
       }else{
           pigcms_tips($group.'分组控制器 '.$mode.' 文件不存在。','none');
       }
   }
}
/**
* 获得系统参数
*/
function option($name=null,$value=null){
   global $_G;
   // 无参数时获取所有
   if(empty($name)){
       return $_G;
   }
   // 优先执行设置获取或赋值
if(is_string($name)){
if (!strpos($name,'.')) {
$name = strtolower($name);
if (is_null($value))
return isset($_G[$name]) ? $_G[$name] : null;
$_G[$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($value))
return isset($_G[$name[0]][$name[1]]) ? $_G[$name[0]][$name[1]] : null;
$_G[$name[0]][$name[1]] = $value;
return;
}
return null; // 避免非法参数
}
/**
* 引入并实例化MODEL类
*/
function M($model){
   static $obj_arr;
   $lower_model = strtolower($model);
   if (isset($obj_arr[$lower_model])) {
       return $obj_arr[$lower_model];
   }

   $model_file = PIGCMS_PATH.'library/model/'.$lower_model.'_model.php';
   if(file_exists($model_file)){
       $model_name = $lower_model.'_model';
       if(!class_exists($model_name,false)){
           require($model_file);
           if(!class_exists($model_name)){
               pigcms_tips($model_name.' 类不存在。','none');
           }
       }
       $model_obj = new $model_name($model);
       $obj_arr[$lower_model] = $model_obj;
       return $model_obj;
   }else{
       pigcms_tips($model_file.' 文件不存在。','none');
   }
}

function datetime($unix_time){
return date('Y-m-d H:i:s',$unix_time);
}

/**
* 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;
}

/**
* 引入模板显示模板
*/
function display($tpl=''){
   global $_G;
   $now_group = GROUP_NAME;
   $now_module = MODULE_NAME;
   $now_action = ACTION_NAME;
   $now_theme = $_G['config']['theme_'.$now_group.'_group'];

   if(empty($now_theme)) $now_theme = 'default';
   if(empty($tpl)){
       $tpl_file = $now_group.'/'.$now_theme.'/'.$now_module.'/'.$now_action.'.php';
   }else{
       $tpl_arr = explode(':',$tpl);
       $tpl_arr_count = count($tpl_arr);
       switch($tpl_arr_count){
           case 1:
               if($now_group == 'wap' && option('config.is_diy_template')){

                   if(file_exists(TPL_PATH.$now_group.'/'.$now_theme.'/theme/'.$tpl_arr[$tpl_arr_count-1].'.php')){
                       if(USE_FRAMEWORK){
                           $tpl_file = $now_group.'/'.$now_theme.'/'.$now_module.'/'.'/theme/'.$tpl_arr[$tpl_arr_count-1].'.php';
                       }else{
                           $tpl_file = $now_group.'/'.$now_theme.'/theme/'.$tpl_arr[$tpl_arr_count-1].'.php';
                       }
                   }else{

                       if(USE_FRAMEWORK){
                           $tpl_file = (strpos($tpl_arr[0],'/')===false) ? $now_group.'/'.$now_theme.'/'.$now_module.'/'.$tpl_arr[0].'.php' : $tpl_arr[0];
                       }else{
                           $tpl_file = (strpos($tpl_arr[0],'/')===false) ? $now_group.'/'.$now_theme.'/'.$tpl_arr[0].'.php' : $tpl_arr[0];
                       }

}

}else{

                   if(USE_FRAMEWORK){
                       $tpl_file = (strpos($tpl_arr[0],'/')===false) ? $now_group.'/'.$now_theme.'/'.$now_module.'/'.$tpl_arr[0].'.php' : $tpl_arr[0];
                   }else{
                       $tpl_file = (strpos($tpl_arr[0],'/')===false) ? $now_group.'/'.$now_theme.'/'.$tpl_arr[0].'.php' : $tpl_arr[0];
                   }

}

               break;
           case 2:
               $tpl_file = $now_group.'/'.$now_theme.'/'.$tpl_arr[0].'/'.$tpl_arr[1].'.php';
               break;
           case 3:
               $tpl_file = $tpl_arr[0].'/'.$_G['config']['theme_'.$tpl_arr[0].'_group'].'/'.$tpl_arr[1].'/'.$tpl_arr[2].'.php';
               break;
           default:
               pigcms_tips('参数过多，无法实例化模板！');
       }
       if($tpl_arr_count == 1){

}else if($tpl_arr_count == 2){

}else if($tpl_arr_count == 3){

       }
   }
   if(file_exists(TPL_PATH.$tpl_file)){
       return TPL_PATH.$tpl_file;
   }else{
       if(DEBUG){
           pigcms_tips('模板文件 template/'.$tpl_file.' 文件不存在。','none');
       }else{
           pigcms_tips('模板文件不存在！');
       }
   }
}

/**
* 生成URL
*/
function url($url='',$param=array(),$showDomain=false){
   global $_G;
   if($showDomain){
       $return_url = $_G['config']['site_url'].'/';
   }else{
       $return_url = getWebUrl();
   }
   $url_arr = explode(':',$url);

   $url_arr_count = count($url_arr);
   switch($url_arr_count){
       case 1:
           $return_url .= ltrim($_SERVER['SCRIPT_NAME'],'/').'?c='.MODULE_NAME.'&a='.$url_arr[0];
           break;
       case 2:
           $return_url .= ltrim($_SERVER['SCRIPT_NAME'],'/').'?c='.$url_arr[0].'&a='.$url_arr[1];
           break;
       case 3:
           $return_url .= $url_arr[0].'.php'.'?c='.$url_arr[1].'&a='.$url_arr[2];
           break;
       case 4:
           pigcms_tips('参数过多，只允许接收3个参数！');
   }
   if($param){
       $return_url .= '&'.http_build_query($param);
   }
   return $return_url;
}

function url_rewrite($url='',$param=array(),$showDomain=false){
   global $_G;
   if($showDomain){
       $return_url = $_G['config']['site_url'].'/';
   }else{
       $return_url = getWebUrl();
   }
   $url_arr = explode(':',$url);

//将url转换成静态url
function url_rewrite1($file,$params = array (),$html = "",$rewrite = true) {
   if ($rewrite) {
       if(strpos($file,':')){
           $file    = substr($file, 0, strpos($file, ':'));
           $url = option('config.site_url').'/' . $file;
       }else{
           $url = ($file == 'index') ? '' : '/' . $file;
       }

       if (!empty ($html)) {
          $url .= '.' . $html;
       }

       if (!empty ($params) && is_array($params)) {
           $url .= '/' . implode('/', $params);
       }

       if($file == 'goods' || $file == 'store'){
           $url .= '.' . 'html';
       }

       /*foreach ($params as $key => $value) {
           $url .= '/'.$key.'/'.$value;
       }*/

   } else {
       $url    = url($file,$params);
   }
   return $url;
}

/**
* 生成URL并输出
*/
function dourl($url='',$param=array(),$showDomain=false){
echo url($url,$param,$showDomain);
}

// 二级目录路由器拼接url
function real_dourl($url='',$param=array(),$showDomain=true){
echo url($url,$param,$showDomain);
}

/**
* 得到字符串的一部分
*/
function msubstr($str, $start=0, $length,$suffix=true,$charset="utf-8"){
if(function_exists("mb_substr")){
if ($suffix && mb_strlen($str, $charset)>$length)
return mb_substr($str, $start, $length, $charset)."...";
else
return mb_substr($str, $start, $length, $charset);
}
elseif(function_exists('iconv_substr')) {
if ($suffix && mb_strlen($str, $charset)>$length)
return iconv_substr($str,$start,$length,$charset)."...";
else
return iconv_substr($str,$start,$length,$charset);
}
$re['utf-8'] = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xff][\x80-\xbf]{3}/";
$re['gb2312'] = "/[\x01-\x7f]|[\xb0-\xf7][\xa0-\xfe]/";
$re['gbk'] = "/[\x01-\x7f]|[\x81-\xfe][\x40-\xfe]/";
$re['big5'] = "/[\x01-\x7f]|[\x81-\xfe]([\x40-\x7e]|\xa1-\xfe])/";
preg_match_all($re[$charset], $str, $match);
$slice = join("",array_slice($match[0], $start, $length));
if($suffix) return $slice."…";
return $slice;
}

/**
* 得到字符串的utf8格式
*/
function get_utf8($word){
   if (preg_match("/^([".chr(228)."-".chr(233)."]{1}[".chr(128)."-".chr(191)."]{1}[".chr(128)."-".chr(191)."]{1}){1}/",$word) == true || preg_match("/([".chr(228)."-".chr(233)."]{1}[".chr(128)."-".chr(191)."]{1}[".chr(128)."-".chr(191)."]{1}){1}$/",$word) == true || preg_match("/([".chr(228)."-".chr(233)."]{1}[".chr(128)."-".chr(191)."]{1}[".chr(128)."-".chr(191)."]{1}){2,}/",$word) == true){
       return $word;
   }else{
       return iconv('gbk','utf-8',$word);
   }
}

/**
* JSON返回
*
* param err_code 返回的错误编码
* param err_msg 返回的错误信息
* param err_dom 返回的DOM标识
*/
function json_return($err_code,$err_msg='',$err_dom=''){
   $json_arr['err_code'] = $err_code;
   if($err_msg) $json_arr['err_msg'] = $err_msg;
   if($err_dom) $json_arr['err_dom'] = $err_dom;
   // dump($json_arr);exit;
   if(!headers_sent()) header('Content-type:application/json');
   exit(json_encode($json_arr));
}

/**
* 检测插件是否存在
*
* @param string $plugin 插件名称
* @param string $attr 参数
*/
function check_plugin($plugin){
   if (is_string($plugin) && file_exists(PIGCMS_PATH.'source/plugins/'.$plugin.'/'.$plugin.'.php')){
       return true;
   }else{
       return false;
   }
}

/**
* 得到插件的url
*
* @param string $plugin 插件名称
* @param string $attr 参数
*/
function url_plugin($plugin,$attr=''){
   global $_G;
   if(!defined('IS_MOBILE')){
       $site_url = $_G['config']['site_url'];
   }else{
       $site_url = $_G['config']['mobile_site_url'];
   }
   if(!empty($attr)){
       return $site_url.'/index.php?plugin='.$plugin.'&'.$attr;
   }else{
       return $site_url.'/index.php?plugin='.$plugin;
   }
}

/**
* 得到文件的大小
*/
function getSize($size){
$kb = 1024;
$mb = 1024*$kb;
$gb = 1024*$mb;
$tb = 1024*$gb;
if($size<$kb){
return $size." B";
}else if($size<$mb){
return round($size/$kb,2)." KB";
}else if($size<$gb){
return round($size/$mb,2)." MB";
}else if($size<$tb){
return round($size/$gb,2)." GB";
}else{
return round($size/$tb,2)." TB";
}
}

/**
* 判断是否手机访问
*/
function is_mobile(){
   if(preg_match('/(iphone|ipad|ipod|android)/i', strtolower($_SERVER['HTTP_USER_AGENT']))){
       return true;
   }else{
       return false;
   }
}
/**
* 判断是否微信访问
*/
function is_weixin(){
   if(strpos($_SERVER['HTTP_USER_AGENT'],'MicroMessenger') !== false){
       return true;
   }else{
       return false;
   }
}

   if(empty($fileUrl)){
       return '';
   }else{
       // 如果已经是完整url地址，则不做处理
       if (strstr($fileUrl, 'https://') !== false) {
           return $fileUrl;
       }

       if (strstr($fileUrl, 'http://') !== false) {
           list($a,$b) = explode(':',$fileUrl);
           return 'https:'.$b;
       }

$attachment_upload_type = option('config.attachment_upload_type');
$url = option('config.site_url') . '/upload/';

       // 如果当前路径中已有upload，将不增加此路径
       if (strstr($fileUrl, 'upload/') !== false) {
           $url = option('config.site_url') . '/';
       }

       if ($attachment_upload_type == '1' && $is_remote) {
           $url = 'https://' . option('config.attachment_up_domainname') . '/';
       }

       return $url . $fileUrl;
   }
}
/**
* 得到附件相对应网站目录的文件地址
*/
function getAttachmentFilePath($fileUrl){
   return PIGCMS_PATH.'upload/'.$fileUrl;
}

/**
* 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];
}

/**
* 等比例绽放图片大小
*/
function drawImg($from,$w=100,$h=100,$newfile){

$info = getimagesize($from);

switch ($info[2]){
case 1:
$im = imagecreatefromgif($from);
break;

case 2:
$im = imagecreatefromjpeg($from);
break;

case 3:
$im = imagecreatefrompng($from);
break;

default:
exit('不支持的图像格式');
break;
}

$temp = pathinfo($from);
$name = $temp["basename"];//文件名
$dir = $temp["dirname"];//文件所在的文件夹
$extension = $temp["extension"];//文件扩展名
$width = $info[0];//获取图片宽度
$height = $info[1];//获取图片高度
$per1 = round($width/$height,2);//计算原图长宽比
$per2 = round($w/$h,2);//计算缩略图长宽比

//计算缩放比例
if($per1>$per2||$per1==$per2) {
//原图长宽比大于或者等于缩略图长宽比，则按照宽度优先
$per=$w/$width;
}

if($per1<$per2) {
//原图长宽比小于缩略图长宽比，则按照高度优先
$per=$h/$height;
}
$temp_w = intval($width*$per);//计算原图缩放后的宽度
$temp_h = intval($height*$per);//计算原图缩放后的高度
$dst_im = imagecreatetruecolor($temp_w, $temp_h);

//调整大小
imagecopyresized($dst_im, $im, 0, 0, 0, 0, $temp_w, $temp_h, $width, $height);
//输出缩小后的图像
//exit($newfile);

imagejpeg($dst_im,$dir.'/'.$newfile);
imagedestroy($dst_im);
imagedestroy($im);
}

/**
* 获取图片不包含域名，如果未使用远程存储，将upload目录一并去掉
*/
function getAttachment($file) {
   if (empty($file)) {
       return;
   }

   $search = trim(option('config.site_url'), '/') . '/upload/';
   $attachment_upload_type = option('config.attachment_upload_type');
   if ($attachment_upload_type == '1') {
       $search = trim('https://' . option('config.attachment_up_domainname'), '/') . '/';
   }

$file = trim(str_replace($search, '', $file), '/');
return $file;
}

//im聊天相关
/**
* 加密串
*/
function get_encrypt_key($array,$app_key){
   $new_arr = array();
   ksort($array);
   foreach($array as $key=>$value){
       $new_arr[] = $key.'='.$value;
   }
   $new_arr[] = 'app_key='.$app_key;

$string = implode('&',$new_arr);
return md5($string);
}

/**
* CURL POST
*
* param url 抓取的URL
* param data post的数组
*/
function curl_post($url,$data){
   $ch = curl_init();
   $headers[] = "Accept-Charset: utf-8";
   curl_setopt($ch, CURLOPT_URL, $url);
   curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
   curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
   curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
   curl_setopt($ch, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
   curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
   curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 5.01; Windows NT 5.0)');
   curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
   curl_setopt($ch, CURLOPT_AUTOREFERER, 1);
   curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
   curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
   $result = curl_exec($ch);

//关闭curl
curl_close($ch);

return $result;
}
/**
* 微信API CURL POST
*
* param url 抓取的URL
* param data post的数组
*/
function api_curl_post($url,$data){
$result = curl_post($url,$data);

$result_arr = json_decode($result,true);
return $result_arr;
}

/**
* JSON返回
*
* param err_code 返回的错误编码
* param err_msg 返回的错误信息
* param err_dom 返回的DOM标识
*/
function error_json_return($err_code,$err_msg){
   $json_arr['err_code'] = $err_code;
   $json_arr['err_msg'] = $err_msg;
   exit(json_encode($json_arr));
}
function ok_json_return($json_arr){
   $json_arr['err_code'] = 0;
   exit(json_encode($json_arr));
}
function ok_jsonp_return($json_arr){
   $json_arr['err_code'] = 0;
   exit($_GET['callback'].'('.json_encode($json_arr).')');
}
//获取im聊天url
function getImUrl($userId, $storeId) {
$is_service = D('Service')->where("status = 1 AND openid != '' AND store_id=$storeId")->find();

if (!empty($is_service) && $_SESSION['wap_user']['app_id'] == 0) {
if(empty($_SESSION['openid'])){
$openid = $userId;
}else{
$openid = $_SESSION['openid'];
}
$key    = get_encrypt_key(array('app_id'=>option('config.im_appid'),'openid'=>$openid),option('config.im_appkey'));
$im_url = option('config.im_url');
if(empty($im_url)) {
   $im_url = IM_SERVER_PATH;
}
$url    = $im_url . '?app_id=' . option('config.im_appid') . '&openid=' . $openid . '&key=' . $key . '#serviceList_' . $storeId;
} else {
$store = D('Store')->where("status = 1 AND store_id = '" . $storeId . "'")->find();
$user_tmp = $_SESSION['wap_user'];

/* if (empty($_SESSION['wap_user'])) {
$user_tmp = D('User')->where("uid = '" . $store['uid'] . "'")->find();
} */

if ($user_tmp['app_id'] == 1 && !empty($store['open_service']) && !empty($store['source_site_url']) && !empty($store['token'])) {
$url = $store['source_site_url'] . '/index.php?g=Wap&m=Service&a=index&token=' . $store['token'] . '&wecha_id=';
} else if ($user_tmp['app_id'] == 2 && !empty($store['open_service'])) {
$url = $store['source_site_url'] . '/wap.php?c=Weidian&a=getImUrl&token=' . $store['token'] . '&wecha_id=' . $_SESSION['wap_user']['third_id'];
} else {
$url = '';
}
}

return $url;
}

/**
* 根据时间，返回状态
* 当前时间在两个时间内:正在进行，当前时间大于开始时间:未开始，当前时间大于结束时间：已结束
*/
function getTimeType($start_time, $end_time) {
   if (empty($start_time) && empty($end_time)) {
       return '';
   }

   // 时间修正
   if ($start_time > $end_time) {
       $tmp = $end_time;
       $end_time = $start_time;
       $start_time = $tmp;
   }

   $time = time();
   if ($time >= $start_time && $time <= $end_time) {
       return '正在进行';
   } else if ($time < $start_time) {
       return '未开始';
   } else if ($time > $end_time) {
       return '已结束';
   }

return '';
}

/**
* 根据满减/送信息，返回格式化字条串
*/
function getRewardStr($reward) {
global $config;

$str = '满' . number_format($reward['money'], 2);

   if ($reward['cash']) {
       $str .= ',减' . number_format($reward['cash'], 2) . '元';
   }

   if ($reward['postage']) {
       $str .= ',免邮费';
   }

   if ($reward['score']) {
       $str .= ',送' . $reward['score'] . '积分';
   }

if ($reward['coupon']) {
$str .= '，送优惠券';

       $url = '';
       if (GROUP_NAME != 'wap') {
           $url = url('coupon:index', array('id' => $reward['coupon']['id']));
       } else {
           $url = $config['wap_site_url'] . '/coupon_detail.php?id=' . $reward['coupon']['id'];
       }
       $str .= '<a href="' . $url . '" target="_blank">' . $reward['coupon']['name'] . '</a>';
   }

   if ($reward['present']) {
       $str .= ',赠送产品：';
       foreach ($reward['present'] as $product) {
           $url = '';
           if (GROUP_NAME != 'wap') {
               $url = url_rewrite('goods:index', array('id' => $product['product_id']));
           } else {
               $url = $config['wap_site_url'] . '/good.php?id=' . $product['product_id'];
           }
           $str .= '<a href="' . $url . '" target="_blank">' . $product['name'] . '</a> ';
       }
   }

return $str;
}

//对象转换为数组
function object_array($array) {
   if(is_object($array)) {
       $array = (array)$array;
   } if(is_array($array)) {
       foreach($array as $key=>$value) {
           $array[$key] = object_array($value);
       }
   }
   return $array;
}

//数组转换为对象
function array_object($arr){
if(is_array($arr)){
return (object) array_map(__FUNCTION__, $arr);
}else{
return $arr;
}
}

//获取用户当前登录位置
function show_distance() {

   if($_COOKIE['Web_user']) {
       //$array = object_array(json_decode($_COOKIE['Web_user']));
       $array = object_array(json_decode(stripslashes(($_COOKIE['Web_user']))));
       if($array['lat']) {
           $array['status'] = true;
       } else {
           //unset($array);
           $array['status'] = false;
       }
   } else {
       $array = array('status'=>false);
   }
   return $array;
}

// 隐藏评论人信息
function anonymous($str, $len1 = 2, $len2 = 1) {
   if (mb_strlen($str, 'utf-8') < 4) {
       $return_str = mb_substr($str, 0, 1, 'utf-8');
       $return_str .= '**';
   } else {
       $return_str = mb_substr($str, 0, $len1, 'utf-8');
       $return_str .= '**';
       $return_str .= mb_substr($str, -1 * $len2, $len2, 'utf-8');
   }
   return $return_str;
}

/**
* @desc 获取querystring
* @param $url
* @return array|string
*/
function convertUrlQuery($url) {
$arr = parse_url($url);
$query = $arr['query'];
if (!empty($query)) {
$queryParts = explode('&', $query);

$params = array();
foreach ($queryParts as $param) {
$item = explode('=', $param);
$params[$item[0]] = $item[1];
}
} else {
$params = '';
}
return $params;
}

/**
*计算某个经纬度的周围某段距离的正方形的四个点
*
*@param lng float 经度
*@param lat float 纬度
*@param distance float 该点所在圆的半径，该圆与此正方形内切，默认值为0.5千米
*@return array 正方形的四个点的经纬度坐标
*/
function returnSquarePoint($lng, $lat,$distance = 0.5){
   define(EARTH_RADIUS, 6371);//地球半径，平均半径为6371km
   $dlng = 2 * asin(sin($distance / (2 * EARTH_RADIUS)) / cos(deg2rad($lat)));
   $dlng = rad2deg($dlng);

$dlat = $distance/EARTH_RADIUS;
$dlat = rad2deg($dlat);

   return array(
           'left-top'=>array('lat'=>$lat + $dlat,'lng'=>$lng-$dlng),
           'right-top'=>array('lat'=>$lat + $dlat, 'lng'=>$lng + $dlng),
           'left-bottom'=>array('lat'=>$lat - $dlat, 'lng'=>$lng - $dlng),
           'right-bottom'=>array('lat'=>$lat - $dlat, 'lng'=>$lng + $dlng)
   );
}

//时间处理
function time_tran($the_time) {
$now_time = time();
$show_time = strtotime($the_time);
$dur = $now_time - $show_time;
if ($dur < 0) {
return $the_time;
} else {
if ($dur < 60) {
return $dur . '秒前';
} else {
if ($dur < 3600) {
return floor($dur / 60) . '分钟前';
} else {
if ($dur < 86400) {
return floor($dur / 3600) . '小时前';
} else {
if ($dur < 259200) {//3天内
return floor($dur / 86400) . '天前';
} else {
return $the_time;
}
}
}
}
}
}

function header_nocache() {
   header("Cache-control:no-cache,no-store,must-revalidate");
   header("Pragma:no-cache");
   header("Expires:-1");
}

/**
* 同步库存信息
* @param $product_id 订单商品id
* @param $original_product_id 原商品id
* @param $sku_data 库存信息
* @param $quantity 购买数量
* @param bool|true $update_sales 是否更新销量
*/
function syncSku($product_id, $original_product_id, $sku_data, $quantity, $update_sales = true) {
   $where = array();
   //供货商的商品或从供货商分销来的商品
   $where['_string'] = "product_id = '" . $original_product_id . "' OR original_product_id = '" . $original_product_id . "' OR wholesale_product_id = '" . $original_product_id . "'";
   $products = M('Product')->getFxProducts($where);
   $tmp_properties = getPropertyToStr($sku_data);
   if (!empty($products)) {
       foreach ($products as $product) {
           //更新商品总库存
           D('Product')->where(array('product_id' => $product['product_id']))->setDec('quantity', $quantity);
           if (!empty($tmp_properties)) { //更新商品属性库存
               D('Product_sku')->where(array('product_id' => $product['product_id'], 'properties' => $tmp_properties))->setDec('quantity', $quantity);
           }
           //更新销量
           if ($update_sales) {
               if ($product['product_id'] == $original_product_id || $product['product_id'] == $product_id) { //源商品或当前购买的商品
                   D('Product')->where(array('product_id' => $product['product_id']))->setInc('sales', $quantity); //更新销量
                   if (!empty($tmp_properties)) { //更新商品属性销量
                       D('Product_sku')->where(array('product_id' => $product['product_id'], 'properties' => $tmp_properties))->setInc('sales', $quantity);
                   }
               }
           }
       }
   }
}

//获取真实openid
function true_openid($uid,$store_id){
   $main_user_info=D('User')->where(array('uid'=>$uid))->field('openid')->find();
   $openid = $main_user_info['openid'];
   $_Map['uid']=$uid;
   $_Map['store_id']=$store_id;
   $subscribe_store_info=D('Subscribe_store')->where($_Map)->find();
   if($subscribe_store_info){
       $openid=$subscribe_store_info['openid'];
   }
   return $openid;
}

/**
* 商品规格id转字符串
* @param $sku_data 库存信息
* @return string
*/
function getProperty2Str($sku_data)
{
   $tmp_properties = '';
   if (!empty($sku_data)) {
       $sku_data = unserialize($sku_data);
       $skus = array();
       if (is_array($sku_data)) {
           foreach ($sku_data as $sku) {
               $skus[] = $sku['pid'] . ':' . $sku['vid'];
           }
       }
       $tmp_properties = implode(';', $skus);
   }
   return $tmp_properties;
}

/**
* 同步库存信息
* @param $product_id 订单商品id
* @param $wholesale_product_id 原商品id
* @param $sku_data 库存信息
* @param $quantity 购买数量
* @param bool|true $update_sales 是否更新销量
*/
function sync_sku($product_id, $wholesale_product_id, $sku_data, $quantity, $update_sales = true)
{
   $where = array();
   //供货商的商品或从供货商分销来的商品
   if ($product_id == $wholesale_product_id) {
       $where['_string'] = "product_id = '" . $product_id . "' OR wholesale_product_id = '" . $wholesale_product_id . "'";
   } else if (!empty($wholesale_product_id)) {
       $where['_string'] = "product_id in (" . $product_id . "," . $wholesale_product_id . ") OR wholesale_product_id = '" . $wholesale_product_id . "'";
   }
   $products = M('Product')->getProducts($where);
   $tmp_properties = getProperty2Str($sku_data);
   if (!empty($products)) {
       foreach ($products as $product) {
           //更新商品总库存
           D('Product')->where(array('product_id' => $product['product_id']))->setDec('quantity', $quantity);
           if (!empty($tmp_properties)) { //更新商品属性库存
               D('Product_sku')->where(array('product_id' => $product['product_id'], 'properties' => $tmp_properties))->setDec('quantity', $quantity);
           }
           //更新销量(当前商品和来源商品)
           if ($update_sales && in_array($product['product_id'], array($product_id, $wholesale_product_id))) {
               D('Product')->where(array('product_id' => $product['product_id']))->setInc('sales', $quantity); //更新销量
               if (!empty($tmp_properties)) { //更新商品属性销量
                   D('Product_sku')->where(array('product_id' => $product['product_id'], 'properties' => $tmp_properties))->setInc('sales', $quantity);
               }
           }
       }
   }
}

/**
* 字符串转数字
* @param $string
* @return int|string
*/
function strtonumber($string){
   $len = strlen($string);
   $sum = '';
   for($i=0;$i<$len;$i++){
       $num = ord($string[$i]);
       $sum += $num;
   }
   return $sum;
}

/**
* 高效取出两个数组的差集
*/
function array_diff_fast($array_1, $array_2) {
$array_2 = array_flip($array_2);
foreach ($array_1 as $key => $item) {
if (isset($array_2[$item])) {
unset($array_1[$key]);
}
}

return $array_1;
}
/**
* 众筹项目url重写
* $file 里面尽量不要带goods和store避免冲突
*/
function UR($file,$params = array (),$html = ".html",$rewrite = REWRITE){
   if ($rewrite==1) {
       if(strpos($file,':')){
           $file_arr=explode(':', $file);
           $count=count($file_arr);
           if($count>2){
               pigcms_tips('参数过多，最多只允许接收2个参数！');
           }
           $url = option('config.site_url').'/'.implode('/', $file_arr);
       }else{
           $url = option('config.site_url').'/'.MODULE_NAME.'/'.$file;
       }
       if (!empty($params) && is_array($params)) {
           $url .= '/'.implode('/', $params);
       }

       if (!empty ($html)) {
          $url .= $html;
       }
   } else {
       $url    = url($file,$params);
   }
   return $url;

}

//访问来源微信菜单
function from_wexin_menu($wap_user, $store_id) {
   if (empty($wap_user)) {
       return false;
   }
   //当前url
   $url = 'https://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
   $relation = D('Concern_relationship')->where(array('uid' => $wap_user['uid'], 'flag' => true))->order('pigcms_id DESC')->find();
   if (!empty($relation)) {
       D('Concern_relationship')->where(array('pigcms_id' => $relation['pigcms_id']))->data(array('flag' => 0, 'last_edit_time' => 0))->save();
       $store = D('Store')->field('drp_supplier_id,root_supplier_id')->where(array('store_id' => $store_id))->find();
       if (!empty($store)) {
           if (!empty($store['drp_supplier_id'])) { //分销商
               return false;
           } else {
               if ($relation['supplier_id'] == $store['store_id']) { //同一供货商
                   $now = time();
                   if ($relation['last_edit_time'] > 0 && ($now - $relation['last_edit_time']) <= 600) {
                       $url = preg_replace('/home\.php\?id\=\d/i', 'home.php?id=' . $relation['store_id'], $url);
                       $url = preg_replace('/ucenter\.php\?id\=\d/i', 'ucenter.php?id=' . $relation['store_id'], $url);
                       $url = preg_replace('/cart\.php\?id\=\d/i', 'cart.php?id=' . $relation['store_id'], $url);
                       $url = preg_replace('/order\.php\?id\=\d/i', 'order.php?id=' . $relation['store_id'], $url);
                       $url = preg_replace('/store_id\=\d/i', 'store_id=' . $relation['store_id'], $url);
                       redirect($url);
                   } else {
                       return false;
                   }
               } else {
                   return false;
               }
           }
       } else {
           return false;
       }
   } else {
       return false;
   }
}

function Convert_BD09_To_GCJ02($lat,$lng){
$x_pi = 3.14159265358979324 * 3000.0 / 180.0;
$x = $lng - 0.0065;
$y = $lat - 0.006;
$z = sqrt($x * $x + $y * $y) - 0.00002 * sin($y * $x_pi);
$theta = atan2($y, $x) - 0.000003 * cos($x * $x_pi);
$lng = $z * cos($theta);
$lat = $z * sin($theta);
return array('lng'=>$lng,'lat'=>$lat);
}

function Convert_GCJ02_To_BD09($lat,$lng){
$x_pi = 3.14159265358979324 * 3000.0 / 180.0;
$x = $lng;
$y = $lat;
$z =sqrt($x * $x + $y * $y) + 0.00002 * sin($y * $x_pi);
$theta = atan2($y, $x) + 0.000003 * cos($x * $x_pi);
$lng = $z * cos($theta) + 0.0065;
$lat = $z * sin($theta) + 0.006;
return array('lng'=>$lng,'lat'=>$lat);
}

function logs($title,$content){
   if(is_array($content)){
       $content = var_export($content);
   }
   D('Aaep_api_log')->data(['type'=>$title,'time'=>date('YmdHis'),'content'=>$content])->add();
}

function txtlog($data,$title = 'log',$filename = 'log'){
   $fp = fopen(PIGCMS_PATH.'/upload/log/'.$filename.'.txt','a');
   if(is_array($data)){
       $data = json_encode($data);
   }
   fwrite($fp,$title.':'.$data.';time:'.date('YmdHis')."\r\n");
   fclose($fp);
}

function arrlog($data,$filename){
   if(is_array($data)){
       $data = var_export($data,true);
   }
   file_put_contents(PIGCMS_PATH.'/upload/log/'.$filename.'.txt', $data);
}

function logss(){}
function dexit($data = '')
{
   if (is_array($data)) {
   echo json_encode($data);
   } else {
   echo $data;
   }
   exit();
}

一些实用的公共方法！！！

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