php 常用过滤数据方法

/**
 * 返回经addslashes处理过的字符串或数组
 * @param $string 需要处理的字符串或数组
 * @return mixed
 */
function new_addslashes($string){
    if(!is_array($string)) return addslashes($string);
    foreach($string as $key => $val) $string[$key] = new_addslashes($val);
    return $string;
}

/**
 * 返回经stripslashes处理过的字符串或数组
 * @param $string 需要处理的字符串或数组
 * @return mixed
 */
function new_stripslashes($string) {
    if(!is_array($string)) return stripslashes($string);
    foreach($string as $key => $val) $string[$key] = new_stripslashes($val);
    return $string;
}

/**
 * 返回经htmlspecialchars处理过的字符串或数组
 * @param $obj 需要处理的字符串或数组
 * @return mixed
 */
function new_html_special_chars($string) {
    $encoding = 'utf-8';
    if(strtolower(CHARSET)=='gbk') $encoding = 'ISO-8859-15';
    if(!is_array($string)) return htmlspecialchars($string,ENT_QUOTES,$encoding);
    foreach($string as $key => $val) $string[$key] = new_html_special_chars($val);
    return $string;
}

function new_html_entity_decode($string) {
    $encoding = 'utf-8';
    if(strtolower(CHARSET)=='gbk') $encoding = 'ISO-8859-15';
    return html_entity_decode($string,ENT_QUOTES,$encoding);
}

function new_htmlentities($string) {
    $encoding = 'utf-8';
    if(strtolower(CHARSET)=='gbk') $encoding = 'ISO-8859-15';
    return htmlentities($string,ENT_QUOTES,$encoding);
}

/**
 * 安全过滤函数
 *
 * @param $string
 * @return string
 */
function safe_replace($string) {
    $string = str_replace('%20','',$string);
    $string = str_replace('%27','',$string);
    $string = str_replace('%2527','',$string);
    $string = str_replace('*','',$string);
    $string = str_replace('"','"',$string);
    $string = str_replace("'",'',$string);
    $string = str_replace('"','',$string);
    $string = str_replace(';','',$string);
    $string = str_replace('<','&lt;',$string);
    $string = str_replace('>','&gt;',$string);
    $string = str_replace("{",'',$string);
    $string = str_replace('}','',$string);
    $string = str_replace('\\','',$string);
    return $string;
}

/**
 * xss过滤函数
 *
 * @param $string
 * @return string
 */
function remove_xss($string) { 
    $string = preg_replace('/[\x00-\x08\x0B\x0C\x0E-\x1F\x7F]+/S', '', $string);

    $parm1 = Array('javascript', 'vbscript', 'expression', 'applet', 'meta', 'xml', 'blink', 'link', 'script', 'embed', 'object', 'iframe', 'frame', 'frameset', 'ilayer', 'layer', 'bgsound', 'title', 'base');

    $parm2 = Array('onabort', 'onactivate', 'onafterprint', 'onafterupdate', 'onbeforeactivate', 'onbeforecopy', 'onbeforecut', 'onbeforedeactivate', 'onbeforeeditfocus', 'onbeforepaste', 'onbeforeprint', 'onbeforeunload', 'onbeforeupdate', 'onblur', 'onbounce', 'oncellchange', 'onchange', 'onclick', 'oncontextmenu', 'oncontrolselect', 'oncopy', 'oncut', 'ondataavailable', 'ondatasetchanged', 'ondatasetcomplete', 'ondblclick', 'ondeactivate', 'ondrag', 'ondragend', 'ondragenter', 'ondragleave', 'ondragover', 'ondragstart', 'ondrop', 'onerror', 'onerrorupdate', 'onfilterchange', 'onfinish', 'onfocus', 'onfocusin', 'onfocusout', 'onhelp', 'onkeydown', 'onkeypress', 'onkeyup', 'onlayoutcomplete', 'onload', 'onlosecapture', 'onmousedown', 'onmouseenter', 'onmouseleave', 'onmousemove', 'onmouseout', 'onmouseover', 'onmouseup', 'onmousewheel', 'onmove', 'onmoveend', 'onmovestart', 'onpaste', 'onpropertychange', 'onreadystatechange', 'onreset', 'onresize', 'onresizeend', 'onresizestart', 'onrowenter', 'onrowexit', 'onrowsdelete', 'onrowsinserted', 'onscroll', 'onselect', 'onselectionchange', 'onselectstart', 'onstart', 'onstop', 'onsubmit', 'onunload');

    $parm = array_merge($parm1, $parm2); 

    for ($i = 0; $i < sizeof($parm); $i++) { 
        $pattern = '/'; 
        for ($j = 0; $j < strlen($parm[$i]); $j++) { 
            if ($j > 0) { 
                $pattern .= '('; 
                $pattern .= '(&#[x|X]0([9][a][b]);?)?'; 
                $pattern .= '|(&#0([9][10][13]);?)?'; 
                $pattern .= ')?'; 
            }
            $pattern .= $parm[$i][$j]; 
        }
        $pattern .= '/i';
        $string = preg_replace($pattern, ' ', $string); 
    }
    return $string;
}

/**
 * 过滤ASCII码从0-28的控制字符
 * @return String
 */
function trim_unsafe_control_chars($str) {
    $rule = '/[' . chr ( 1 ) . '-' . chr ( 8 ) . chr ( 11 ) . '-' . chr ( 12 ) . chr ( 14 ) . '-' . chr ( 31 ) . ']*/';
    return str_replace ( chr ( 0 ), '', preg_replace ( $rule, '', $str ) );
}

/**
 * 格式化文本域内容
 *
 * @param $string 文本域内容
 * @return string
 */
function trim_textarea($string) {
    $string = nl2br ( str_replace ( ' ', ' ', $string ) );
    return $string;
}

/**
 * 将文本格式成适合js输出的字符串
 * @param string $string 需要处理的字符串
 * @param intval $isjs 是否执行字符串格式化，默认为执行
 * @return string 处理后的字符串
 */
function format_js($string, $isjs = 1) {
    $string = addslashes(str_replace(array("\r", "\n", "\t"), array('', '', ''), $string));
    return $isjs ? 'document.write("'.$string.'");' : $string;
}

/**
 * 转义 javascript 代码标记
 *
 * @param $str
 * @return mixed
 */
 function trim_script($str) {
    if(is_array($str)){
        foreach ($str as $key => $val){
            $str[$key] = trim_script($val);
        }
     }else{
         $str = preg_replace ( '/\<([\/]?)script([^\>]*?)\>/si', '&lt;\\1script\\2&gt;', $str );
        $str = preg_replace ( '/\<([\/]?)iframe([^\>]*?)\>/si', '&lt;\\1iframe\\2&gt;', $str );
        $str = preg_replace ( '/\<([\/]?)frame([^\>]*?)\>/si', '&lt;\\1frame\\2&gt;', $str );
        $str = str_replace ( 'javascript:', 'javascript：', $str );
     }
    return $str;
}

/**
 * 获取当前页面完整URL地址
 */
function get_url() {
    $sys_protocal = isset($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == '443' ? 'https://' : 'http://';
    $php_self = $_SERVER['PHP_SELF'] ? safe_replace($_SERVER['PHP_SELF']) : safe_replace($_SERVER['SCRIPT_NAME']);
    $path_info = isset($_SERVER['PATH_INFO']) ? safe_replace($_SERVER['PATH_INFO']) : '';
    $relate_url = isset($_SERVER['REQUEST_URI']) ? safe_replace($_SERVER['REQUEST_URI']) : $php_self.(isset($_SERVER['QUERY_STRING']) ? '?'.safe_replace($_SERVER['QUERY_STRING']) : $path_info);
    return $sys_protocal.(isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : '').$relate_url;
}

/**
 * 字符截取 支持UTF8/GBK
 * @param $string
 * @param $length
 * @param $dot
 */
function str_cut($string, $length, $dot = '...') {
    $strlen = strlen($string);
    if($strlen <= $length) return $string;
    $string = str_replace(array(' ','&nbsp;', '&amp;', '&quot;', '&#039;', '&ldquo;', '&rdquo;', '&mdash;', '&lt;', '&gt;', '&middot;', '&hellip;'), array('∵',' ', '&', '"', "'", '“', '”', '—', '<', '>', '·', '…'), $string);
    $strcut = '';
    if(strtolower(CHARSET) == 'utf-8') {
        $length = intval($length-strlen($dot)-$length/3);
        $n = $tn = $noc = 0;
        while($n < strlen($string)) {
            $t = ord($string[$n]);
            if($t == 9 || $t == 10 || (32 <= $t && $t <= 126)) {
                $tn = 1; $n++; $noc++;
            } elseif(194 <= $t && $t <= 223) {
                $tn = 2; $n += 2; $noc += 2;
            } elseif(224 <= $t && $t <= 239) {
                $tn = 3; $n += 3; $noc += 2;
            } elseif(240 <= $t && $t <= 247) {
                $tn = 4; $n += 4; $noc += 2;
            } elseif(248 <= $t && $t <= 251) {
                $tn = 5; $n += 5; $noc += 2;
            } elseif($t == 252 || $t == 253) {
                $tn = 6; $n += 6; $noc += 2;
            } else {
                $n++;
            }
            if($noc >= $length) {
                break;
            }
        }
        if($noc > $length) {
            $n -= $tn;
        }
        $strcut = substr($string, 0, $n);
        $strcut = str_replace(array('∵', '&', '"', "'", '“', '”', '—', '<', '>', '·', '…'), array(' ', '&amp;', '&quot;', '&#039;', '&ldquo;', '&rdquo;', '&mdash;', '&lt;', '&gt;', '&middot;', '&hellip;'), $strcut);
    } else {
        $dotlen = strlen($dot);
        $maxi = $length - $dotlen - 1;
        $current_str = '';
        $search_arr = array('&',' ', '"', "'", '“', '”', '—', '<', '>', '·', '…','∵');
        $replace_arr = array('&amp;','&nbsp;', '&quot;', '&#039;', '&ldquo;', '&rdquo;', '&mdash;', '&lt;', '&gt;', '&middot;', '&hellip;',' ');
        $search_flip = array_flip($search_arr);
        for ($i = 0; $i < $maxi; $i++) {
            $current_str = ord($string[$i]) > 127 ? $string[$i].$string[++$i] : $string[$i];
            if (in_array($current_str, $search_arr)) {
                $key = $search_flip[$current_str];
                $current_str = str_replace($search_arr[$key], $replace_arr[$key], $current_str);
            }
            $strcut .= $current_str;
        }
    }
    return $strcut.$dot;
}

/**
 * 获取请求ip
 *
 * @return ip地址
 */
function ip() {
    if(getenv('HTTP_CLIENT_IP') && strcasecmp(getenv('HTTP_CLIENT_IP'), 'unknown')) {
        $ip = getenv('HTTP_CLIENT_IP');
    } elseif(getenv('HTTP_X_FORWARDED_FOR') && strcasecmp(getenv('HTTP_X_FORWARDED_FOR'), 'unknown')) {
        $ip = getenv('HTTP_X_FORWARDED_FOR');
    } elseif(getenv('REMOTE_ADDR') && strcasecmp(getenv('REMOTE_ADDR'), 'unknown')) {
        $ip = getenv('REMOTE_ADDR');
    } elseif(isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], 'unknown')) {
        $ip = $_SERVER['REMOTE_ADDR'];
    }
    return preg_match ( '/[\d\.]{7,15}/', $ip, $matches ) ? $matches [0] : '';
}

function get_cost_time() {
    $microtime = microtime ( TRUE );
    return $microtime - SYS_START_TIME;
}

/**
 * 程序执行时间
 *
 * @return    int    单位ms
 */
function execute_time() {
    $stime = explode ( ' ', SYS_START_TIME );
    $etime = explode ( ' ', microtime () );
    return number_format ( ($etime [1] + $etime [0] - $stime [1] - $stime [0]), 6 );
}

/**
* 将字符串转换为数组
*
* @param    string    $data    字符串
* @return    array    返回数组格式，如果，data为空，则返回空数组
*/
function string2array($data) {
    if($data == '') return array();
    $data = stripslashes($data);
    @eval("\$array = $data;");
    return $array;
}

/**
* 将数组转换为字符串
*
* @param    array    $data        数组
* @param    bool    $isformdata    如果为0，则不使用new_stripslashes处理，可选参数，默认为1
* @return    string    返回字符串，如果，data为空，则返回空
*/
function array2string($data, $isformdata = 1) {
    if($data == '') return '';
    if($isformdata) $data = new_stripslashes($data);
    return addslashes(var_export($data, TRUE));
}

/**
* 转换字节数为其他单位
*
*
* @param    string    $filesize    字节大小
* @return    string    返回大小
*/
function sizecount($filesize) {
    if ($filesize >= 1073741824) {
        $filesize = round($filesize / 1073741824 * 100) / 100 .' GB';
    } elseif ($filesize >= 1048576) {
        $filesize = round($filesize / 1048576 * 100) / 100 .' MB';
    } elseif($filesize >= 1024) {
        $filesize = round($filesize / 1024 * 100) / 100 . ' KB';
    } else {
        $filesize = $filesize.' Bytes';
    }
    return $filesize;
}

/**
* 字符串加密、解密函数
*
*
* @param    string    $txt        字符串
* @param    string    $operation    ENCODE为加密，DECODE为解密，可选参数，默认为ENCODE，
* @param    string    $key        密钥：数字、字母、下划线
* @param    string    $expiry        过期时间
* @return    string
*/
function sys_auth($string, $operation = 'ENCODE', $key = '', $expiry = 0) {
    $key_length = 4;
    $key = md5($key != '' ? $key : app_base::load_config('system', 'auth_key'));
    $fixedkey = md5($key);
    $egiskeys = md5(substr($fixedkey, 16, 16));
    $runtokey = $key_length ? ($operation == 'ENCODE' ? substr(md5(microtime(true)), -$key_length) : substr($string, 0, $key_length)) : '';
    $keys = md5(substr($runtokey, 0, 16) . substr($fixedkey, 0, 16) . substr($runtokey, 16) . substr($fixedkey, 16));
    $string = $operation == 'ENCODE' ? sprintf('%010d', $expiry ? $expiry + time() : 0).substr(md5($string.$egiskeys), 0, 16) . $string : base64_decode(substr($string, $key_length));

    $i = 0; $result = '';
    $string_length = strlen($string);
    for ($i = 0; $i < $string_length; $i++){
        $result .= chr(ord($string{$i}) ^ ord($keys{$i % 32}));
    }
    if($operation == 'ENCODE') {
        return $runtokey . str_replace('=', '', base64_encode($result));
    } else {
        if((substr($result, 0, 10) == 0 || substr($result, 0, 10) - time() > 0) && substr($result, 10, 16) == substr(md5(substr($result, 26).$egiskeys), 0, 16)) {
            return substr($result, 26);
        } else {
            return '';
        }
    }
}

/**
* 语言文件处理
*
* @param    string        $language    标示符
* @param    array        $pars    转义的数组,二维数组 ,'key1'=>'value1','key2'=>'value2',
* @param    string        $modules 多个模块之间用半角逗号隔开，如：member,guestbook
* @return    string        语言字符
*/
function L($language = 'no_language',$pars = array(), $modules = '') {
    static $LANG = array();
    static $LANG_MODULES = array();
    static $lang = '';
    if(defined('IN_ADMIN')) {
        $lang = SYS_STYLE ? SYS_STYLE : 'zh-cn';
    } else {
        $lang = app_base::load_config('system','lang');
    }
    if(!$LANG) {
        require_once CODE_PATH.'languages'.DIRECTORY_SEPARATOR.$lang.DIRECTORY_SEPARATOR.'system.lang.php';
        if(defined('IN_ADMIN')) require_once CODE_PATH.'languages'.DIRECTORY_SEPARATOR.$lang.DIRECTORY_SEPARATOR.'system_menu.lang.php';
        if(file_exists(CODE_PATH.'languages'.DIRECTORY_SEPARATOR.$lang.DIRECTORY_SEPARATOR.ROUTE_M.'.lang.php')) require_once CODE_PATH.'languages'.DIRECTORY_SEPARATOR.$lang.DIRECTORY_SEPARATOR.ROUTE_M.'.lang.php';
    }
    if(!empty($modules)) {
        $modules = explode(',',$modules);
        foreach($modules AS $m) {
            if(!isset($LANG_MODULES[$m])) require_once CODE_PATH.'languages'.DIRECTORY_SEPARATOR.$lang.DIRECTORY_SEPARATOR.$m.'.lang.php';
        }
    }
    if(!array_key_exists($language,$LANG)) {
        return $language;
    } else {
        $language = $LANG[$language];
        if($pars) {
            foreach($pars AS $_k=>$_v) {
                $language = str_replace('{'.$_k.'}',$_v,$language);
            }
        }
        return $language;
    }
}

/**
 * 模板调用
 *
 * @param $module
 * @param $template
 * @param $istag
 * @return unknown_type
 */
function template($module = 'content', $template = 'index', $style = '') {

    if(strpos($module, 'plugin/')!== false) {
        $plugin = str_replace('plugin/', '', $module);
        return p_template($plugin, $template,$style);
    }
    $module = str_replace('/', DIRECTORY_SEPARATOR, $module);
    if(!empty($style) && preg_match('/([a-z0-9\-_]+)/is',$style)) {
    } elseif (empty($style) && !defined('STYLE')) {
        if(defined('SITEID')) {
            $siteid = SITEID;
        } else {
            $siteid = param::get_cookie('siteid');
        }
        if (!$siteid) $siteid = 1;
        $sitelist = getcache('sitelist','commons');
        if(!empty($siteid)) {
            $style = $sitelist[$siteid]['default_style'];
        }
    } elseif (empty($style) && defined('STYLE')) {
        $style = STYLE;
    } else {
        $style = 'default';
    }
    if(!$style) $style = 'default';
    $template_cache = app_base::load_sys_class('template_cache');
    $compiledtplfile = ROOT_PATH.'caches'.DIRECTORY_SEPARATOR.'caches_template'.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.php';
    if(file_exists(CODE_PATH.'templates'.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.html')) {
        if(!file_exists($compiledtplfile) || (@filemtime(CODE_PATH.'templates'.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.html') > @filemtime($compiledtplfile))) {
            $template_cache->template_compile($module, $template, $style);
        }
    } else {
        $compiledtplfile = ROOT_PATH.'caches'.DIRECTORY_SEPARATOR.'caches_template'.DIRECTORY_SEPARATOR.'default'.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.php';
        if(!file_exists($compiledtplfile) || (file_exists(CODE_PATH.'templates'.DIRECTORY_SEPARATOR.'default'.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.html') && filemtime(CODE_PATH.'templates'.DIRECTORY_SEPARATOR.'default'.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.html') > filemtime($compiledtplfile))) {
            $template_cache->template_compile($module, $template, 'default');
        } elseif (!file_exists(CODE_PATH.'templates'.DIRECTORY_SEPARATOR.'default'.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.html')) {
            showmessage('Template does not exist.'.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.'.html');
        }
    }
    return $compiledtplfile;
}

/**
 * 输出自定义错误
 *
 * @param $errno 错误号
 * @param $errstr 错误描述
 * @param $errfile 报错文件地址
 * @param $errline 错误行号
 * @return string 错误提示
 */

function my_error_handler($errno, $errstr, $errfile, $errline) {
    if($errno==8) return '';
    $errfile = str_replace(ROOT_PATH,'',$errfile);
    if(app_base::load_config('system','errorlog')) {
        error_log('<?php exit;?>'.date('m-d H:i:s',SYS_TIME).' | '.$errno.' | '.str_pad($errstr,30).' | '.$errfile.' | '.$errline."\r\n", 3, CACHE_PATH.'error_log.php');
    } else {
        $str = '<div style="font-size:12px;text-align:left; border-bottom:1px solid #9cc9e0; border-right:1px solid #9cc9e0;padding:1px 4px;color:#000000;font-family:Arial, Helvetica,sans-serif;"><span>errorno:' . $errno . ',str:' . $errstr . ',file:<font color="blue">' . $errfile . '</font>,line' . $errline .'<br />Need Help?</span></div>';
        echo $str;
    }
}

/**
 * 提示信息页面跳转，跳转地址如果传入数组，页面会提示多个地址供用户选择，默认跳转地址为数组的第一个值，时间为5秒。
 * showmessage('登录成功', array('默认跳转地址'=>'http://www.baidu.com'));
 * @param string $msg 提示信息
 * @param mixed(string/array) $url_forward 跳转地址
 * @param int $ms 跳转等待时间
 */
function showmessage($msg, $url_forward = 'goback', $ms = 1250, $dialog = '', $returnjs = '') {
    if(defined('IN_ADMIN')) {
        include(admin::admin_tpl('showmessage', 'admin'));
    } else {
        include(template('content', 'message'));
    }
    exit;
}

/**
 * 查询字符是否存在于某字符串
 *
 * @param $haystack 字符串
 * @param $needle 要查找的字符
 * @return bool
 */
function str_exists($haystack, $needle)
{
    return !(strpos($haystack, $needle) === FALSE);
}

/**
 * 取得文件扩展
 *
 * @param $filename 文件名
 * @return 扩展名
 */
function fileext($filename) {
    return strtolower(trim(substr(strrchr($filename, '.'), 1, 10)));
}

/**
 * 加载模板标签缓存
 * @param string $name 缓存名
 * @param integer $times 缓存时间
 */
function tpl_cache($name,$times = 0) {
    $filepath = 'tpl_data';
    $info = getcacheinfo($name, $filepath);
    if (SYS_TIME - $info['filemtime'] >= $times) {
        return false;
    } else {
        return getcache($name,$filepath);
    }
}

/**
 * 写入缓存，默认为文件缓存，不加载缓存配置。
 * @param $name 缓存名称
 * @param $data 缓存数据
 * @param $filepath 数据路径（模块名称） caches/cache_$filepath/
 * @param $type 缓存类型[file,memcache,apc]
 * @param $config 配置名称
 * @param $timeout 过期时间
 */
function setcache($name, $data, $filepath='', $type='file', $config='', $timeout=0) {
    app_base::load_sys_class('cache_factory','',0);
    if($config) {
        $cacheconfig = app_base::load_config('cache');
        $cache = cache_factory::get_instance($cacheconfig)->get_cache($config);
    } else {
        $cache = cache_factory::get_instance()->get_cache($type);
    }

    return $cache->set($name, $data, $timeout, '', $filepath);
}

/**
 * 读取缓存，默认为文件缓存，不加载缓存配置。
 * @param string $name 缓存名称
 * @param $filepath 数据路径（模块名称） caches/cache_$filepath/
 * @param string $config 配置名称
 */
function getcache($name, $filepath='', $type='file', $config='') {
    app_base::load_sys_class('cache_factory','',0);
    if($config) {
        $cacheconfig = app_base::load_config('cache');
        $cache = cache_factory::get_instance($cacheconfig)->get_cache($config);
    } else {
        $cache = cache_factory::get_instance()->get_cache($type);
    }
    return $cache->get($name, '', '', $filepath);
}

/**
 *根据行政区划数字获取对应名称名称  如 110101 得到 北京市东城区
 */
function get_div($div='')
{
    if(empty($div)){
        return false;
    }
    $regioncode = getcache('1','linkage');
    if($regioncode)
    {
        $l1=substr($div,0,2).'0000';
        $L1_n=$regioncode['data'][$l1]['name'];
        $tb=array('110000','120000','310000','500000');
        if(in_array($l1,$tb)){
            $l2 = $l1=substr($div,0,2)."0000-r";
        }else{
            $l2 = substr($div,0,4)."00";
        }
        $L2_n =  $regioncode['data'][$l2]['name'];
        $L3_n =  $regioncode['data'][$div]['name'];
        if($L2_n===$L1_n){
            $res_div = $L1_n.$L3_n;
        }else{
            $res_div = $L1_n.$L2_n.$L3_n;
        }
        return $res_div;
    }else{
        return '无行政区划地址';
    }
}

/**
 *根据行业类型数字获取对应名称名称  如 $trade=‘1A0112’ 得到 农、林、  牧、渔业-农业-谷物及其他作物的种植-薯类的种植
 */
function get_trade_category($trade=''){
    if(empty($trade)){
        return false;
    }
    $trade_category = getcache('3','linkage');
    if($trade_category){
        $t1=substr($trade,0,2);
        $T_1=$trade_category['data'][$t1]['name']?$trade_category['data'][$t1]['name']:'';
        $t2=substr($trade,0,4);
        $T_2=$trade_category['data'][$t2]['name']?$trade_category['data'][$t2]['name']:'';
        $t3=substr($trade,0,5);
        $T_3=$trade_category['data'][$t3]['name']?$trade_category['data'][$t3]['name']:'';
        $T_4=$trade_category['data'][$trade]['name']?$trade_category['data'][$trade]['name']:'';
        if($T_3===$T_4){
            $res_trade = $T_1.'-'.$T_2.'-'.$T_3;
        }else{
            $res_trade = $T_1.'-'.$T_2.'-'.$T_3.'-'.$T_4;
        }
        if(empty($res_trade)){
            return '行业类型数据不存在';
        }
        return $res_trade;

    }else{
        return '行业类型数据不存在';
    }
}

/**
 * 删除缓存，默认为文件缓存，不加载缓存配置。
 * @param $name 缓存名称
 * @param $filepath 数据路径（模块名称） caches/cache_$filepath/
 * @param $type 缓存类型[file,memcache,apc]
 * @param $config 配置名称
 */
function delcache($name, $filepath='', $type='file', $config='') {
    app_base::load_sys_class('cache_factory','',0);
    if($config) {
        $cacheconfig = app_base::load_config('cache');
        $cache = cache_factory::get_instance($cacheconfig)->get_cache($config);
    } else {
        $cache = cache_factory::get_instance()->get_cache($type);
    }
    return $cache->delete($name, '', '', $filepath);
}

/**
 * 读取缓存，默认为文件缓存，不加载缓存配置。
 * @param string $name 缓存名称
 * @param $filepath 数据路径（模块名称） caches/cache_$filepath/
 * @param string $config 配置名称
 */
function getcacheinfo($name, $filepath='', $type='file', $config='') {
    app_base::load_sys_class('cache_factory');
    if($config) {
        $cacheconfig = app_base::load_config('cache');
        $cache = cache_factory::get_instance($cacheconfig)->get_cache($config);
    } else {
        $cache = cache_factory::get_instance()->get_cache($type);
    }
    return $cache->cacheinfo($name, '', '', $filepath);
}

/**
 * 生成sql语句，如果传入$in_cloumn 生成格式为 IN('a', 'b', 'c')
 * @param $data 条件数组或者字符串
 * @param $front 连接符
 * @param $in_column 字段名称
 * @return string
 */
function to_sqls($data, $front = ' AND ', $in_column = false) {
    if($in_column && is_array($data)) {
        $ids = '\''.implode('\',\'', $data).'\'';
        $sql = "$in_column IN ($ids)";
        return $sql;
    } else {
        if ($front == '') {
            $front = ' AND ';
        }
        if(is_array($data) && count($data) > 0) {
            $sql = '';
            foreach ($data as $key => $val) {
                $sql .= $sql ? " $front $key = '$val' " : " $key = '$val' ";
            }
            return $sql;
        } else {
            return $data;
        }
    }
}

/**
 * 分页函数
 *
 * @param $num 信息总数
 * @param $curr_page 当前分页
 * @param $perpage 每页显示数
 * @param $urlrule URL规则
 * @param $array 需要传递的数组，用于增加额外的方法
 * @return 分页
 */
function pages($num, $curr_page, $perpage = 20, $urlrule = '', $array = array(),$setpages = 10) {
    if(defined('URLRULE') && $urlrule == '') {
        $urlrule = URLRULE;
        $array = $GLOBALS['URL_ARRAY'];
    } elseif($urlrule == '') {
        $urlrule = url_par('page={$page}');
    }
    $multipage = '';
    if($num > $perpage) {
        $page = $setpages+1;
        $offset = ceil($setpages/2-1);
        $pages = ceil($num / $perpage);
        if (defined('IN_ADMIN') && !defined('PAGES')) define('PAGES', $pages);
        $from = $curr_page - $offset;
        $to = $curr_page + $offset;
        $more = 0;
        if($page >= $pages) {
            $from = 2;
            $to = $pages-1;
        } else {
            if($from <= 1) {
                $to = $page-1;
                $from = 2;
            }  elseif($to >= $pages) {
                $from = $pages-($page-2);
                $to = $pages-1;
            }
            $more = 1;
        }
        //$multipage .= '<a class="a1">'.$num.L('page_item').'</a>';
        if($curr_page>0) {
            $multipage .= ' <a href="'.pageurl($urlrule, $curr_page-1, $array).'" class="a1">'.L('previous').'</a>';
            if($curr_page==1) {
                $multipage .= ' <span>1</span>';
            } elseif($curr_page>6 && $more) {
                $multipage .= ' <a href="'.pageurl($urlrule, 1, $array).'">1</a>..';
            } else {
                $multipage .= ' <a href="'.pageurl($urlrule, 1, $array).'">1</a>';
            }
        }
        for($i = $from; $i <= $to; $i++) {
            if($i != $curr_page) {
                $multipage .= ' <a href="'.pageurl($urlrule, $i, $array).'">'.$i.'</a>';
            } else {
                $multipage .= ' <span>'.$i.'</span>';
            }
        }
        if($curr_page<$pages) {
            if($curr_page<$pages-5 && $more) {
                $multipage .= ' ..<a href="'.pageurl($urlrule, $pages, $array).'">'.$pages.'</a> <a href="'.pageurl($urlrule, $curr_page+1, $array).'" class="a1">'.L('next').'</a>';
            } else {
                $multipage .= ' <a href="'.pageurl($urlrule, $pages, $array).'">'.$pages.'</a> <a href="'.pageurl($urlrule, $curr_page+1, $array).'" class="a1">'.L('next').'</a>';
            }
        } elseif($curr_page==$pages) {
            $multipage .= ' <span>'.$pages.'</span> <a href="'.pageurl($urlrule, $curr_page, $array).'" class="a1">'.L('next').'</a>';
        } else {
            $multipage .= ' <a href="'.pageurl($urlrule, $pages, $array).'">'.$pages.'</a> <a href="'.pageurl($urlrule, $curr_page+1, $array).'" class="a1">'.L('next').'</a>';
        }
    }
    return $multipage;
}

function pages1($num, $curr_page, $perpage = 20, $urlrule = '', $array = array(),$setpages = 10) {
    if(defined('URLRULE') && $urlrule == '') {
        $urlrule = URLRULE;
        $array = $GLOBALS['URL_ARRAY'];
    } elseif($urlrule == '') {
        $urlrule = url_par('page={$page}');
    }
    $multipage = '';
    if($num > $perpage) {
        $page = $setpages+1;
        $offset = ceil($setpages/2-1);
        $pages = ceil($num / $perpage);
        if (defined('IN_ADMIN') && !defined('PAGES')) define('PAGES', $pages);
        $from = $curr_page - $offset;
        $to = $curr_page + $offset;
        $more = 0;
        if($page >= $pages) {
            $from = 2;
            $to = $pages-1;
        } else {
            if($from <= 1) {
                $to = $page-1;
                $from = 2;
            }  elseif($to >= $pages) {
                $from = $pages-($page-2);
                $to = $pages-1;
            }
            $more = 1;
        }
        //$multipage .= '<a class="a1">'.$num.L('page_item').'</a>';
        if($curr_page>0) {
            $multipage .= ' <a href="###" onclick="$(\'#page\').val('.($curr_page-1).');$(\'#pageform\').submit();" class="a1">'.L('previous').'</a>';
            if($curr_page==1) {
                $multipage .= ' <span>1</span>';
            } elseif($curr_page>6 && $more) {
                $multipage .= ' <a href="###" onclick="$(\'#page\').val(1);$(\'#pageform\').submit();">1</a>..';
            } else {
                $multipage .= ' <a href="###" onclick="$(\'#page\').val(1);$(\'#pageform\').submit();">1</a>';
            }
        }
        for($i = $from; $i <= $to; $i++) {
            if($i != $curr_page) {
                $multipage .= ' <a href="###" onclick="$(\'#page\').val('.$i.');$(\'#pageform\').submit();">'.$i.'</a>';
            } else {
                $multipage .= ' <span>'.$i.'</span>';
            }
        }
        if($curr_page<$pages) {
            if($curr_page<$pages-5 && $more) {
                $multipage .= ' ..<a href="###" onclick="$(\'#page\').val('.$pages.');$(\'#pageform\').submit();">'.$pages.'</a> <a href="###" onclick="$(\'#page\').val('.($curr_page+1).');$(\'#pageform\').submit();" class="a1">'.L('next').'</a>';
            } else {
                $multipage .= ' <a href="###" onclick="$(\'#page\').val('.$pages.');$(\'#pageform\').submit();">'.$pages.'</a> <a href="###"  onclick="$(\'#page\').val('.($curr_page+1).');$(\'#pageform\').submit();" class="a1">'.L('next').'</a>';
            }
        } elseif($curr_page==$pages) {
            $multipage .= ' <span>'.$pages.'</span> <a href="###" onclick="$(\'#page\').val('.$curr_page.');$(\'#pageform\').submit();" class="a1">'.L('next').'</a>';
        } else {
            $multipage .= ' <a href="###" onclick="$(\'#page\').val('.$pages.');$(\'#pageform\').submit();">'.$pages.'</a> <a href="###" onclick="$(\'#page\').val('.($curr_page+1).');$(\'#pageform\').submit();" class="a1">'.L('next').'</a>';
        }
    }
    return $multipage;
}


function pages2($num, $curr_page, $pages, $urlrule = '', $array = array(),$setpages = 10) {
    if(defined('URLRULE') && $urlrule == '') {
        $urlrule = URLRULE;
        $array = $GLOBALS['URL_ARRAY'];
    } elseif($urlrule == '') {
        $urlrule = url_par('page={$page}');
    }
    $multipage = '';
    if($pages > 1) {
        $page = $setpages+1;
        $offset = ceil($setpages/2-1);
        if (defined('IN_ADMIN') && !defined('PAGES')) define('PAGES', $pages);
        $from = $curr_page - $offset;
        $to = $curr_page + $offset;
        $more = 0;
        if($page >= $pages) {
            $from = 2;
            $to = $pages-1;
        } else {
            if($from <= 1) {
                $to = $page-1;
                $from = 2;
            }  elseif($to >= $pages) {
                $from = $pages-($page-2);
                $to = $pages-1;
            }
            $more = 1;
        }
        //$multipage .= '<a class="a1">'.$num.L('page_item').'</a>';
        if($curr_page>0) {
            $multipage .= ' <a href="###" onclick="$(\'#dosearch\').trigger(\'click\',['.($curr_page-1).']);" class="a1">'.L('previous').'</a>';
            if($curr_page==1) {
                $multipage .= ' <span>1</span>';
            } elseif($curr_page>6 && $more) {
                $multipage .= ' <a href="###" onclick="$(\'#dosearch\').trigger(\'click\',[1]);">1</a>..';
            } else {
                $multipage .= ' <a href="###" onclick="$(\'#dosearch\').trigger(\'click\',[1]);">1</a>';
            }
        }
        for($i = $from; $i <= $to; $i++) {
            if($i != $curr_page) {
                $multipage .= ' <a href="###" onclick="$(\'#dosearch\').trigger(\'click\',['.$i.']);">'.$i.'</a>';
            } else {
                $multipage .= ' <span>'.$i.'</span>';
            }
        }
        if($curr_page<$pages) {
            if($curr_page<$pages-5 && $more) {
                $multipage .= ' ..<a href="###" onclick="$(\'#dosearch\').trigger(\'click\',['.$pages.']);">'.$pages.'</a> <a href="###" onclick="$(\'#dosearch\').trigger(\'click\',['.($curr_page+1).']);" class="a1">'.L('next').'</a>';
            } else {
                $multipage .= ' <a href="###" onclick="$(\'#dosearch\').trigger(\'click\',['.$pages.']);">'.$pages.'</a> <a href="###"  onclick="$(\'#dosearch\').trigger(\'click\',['.($curr_page+1).']);" class="a1">'.L('next').'</a>';
            }
        } elseif($curr_page==$pages) {
            $multipage .= ' <span>'.$pages.'</span> <a href="###" onclick="$(\'#dosearch\').trigger(\'click\',['.($curr_page).']);" class="a1">'.L('next').'</a>';
        } else {
            $multipage .= ' <a href="###" onclick="$(\'#dosearch\').trigger(\'click\',['.$pages.']);">'.$pages.'</a> <a href="###" onclick="$(\'#dosearch\').trigger(\'click\',['.($curr_page+1).']);" class="a1">'.L('next').'</a>';
        }
    }
    return $multipage;
}

/**
 * 返回分页路径
 *
 * @param $urlrule 分页规则
 * @param $page 当前页
 * @param $array 需要传递的数组，用于增加额外的方法
 * @return 完整的URL路径
 */
function pageurl($urlrule, $page, $array = array()) {
    if(strpos($urlrule, '~')) {
        $urlrules = explode('~', $urlrule);
        $urlrule = $page < 2 ? $urlrules[0] : $urlrules[1];
    }
    $findme = array('{$page}');
    $replaceme = array($page);
    if (is_array($array)) foreach ($array as $k=>$v) {
        $findme[] = '{$'.$k.'}';
        $replaceme[] = $v;
    }
    $url = str_replace($findme, $replaceme, $urlrule);
    $url = str_replace(array('http://','//','~'), array('~','/','http://'), $url);
    return $url;
}

/**
 * URL路径解析，pages 函数的辅助函数
 *
 * @param $par 传入需要解析的变量 默认为，page={$page}
 * @param $url URL地址
 * @return URL
 */
function url_par($par, $url = '') {
    if($url == '') $url = get_url();
    $pos = strpos($url, '?');
    if($pos === false) {
        $url .= '?'.$par;
    } else {
        $querystring = substr(strstr($url, '?'), 1);
        parse_str($querystring, $pars);
        $query_array = array();
        foreach($pars as $k=>$v) {
            if($k != 'page') $query_array[$k] = $v;
        }
        $querystring = http_build_query($query_array).'&'.$par;
        $url = substr($url, 0, $pos).'?'.$querystring;
    }
    return $url;
}

/**
 * 判断email格式是否正确
 * @param $email
 */
function is_email($email) {
    return strlen($email) > 6 && preg_match("/^[\w\-\.]+@[\w\-\.]+(\.\w+)+$/", $email);
}

/**
 * iconv 编辑转换
 */
if (!function_exists('iconv')) {
    function iconv($in_charset, $out_charset, $str) {
        $in_charset = strtoupper($in_charset);
        $out_charset = strtoupper($out_charset);
        if (function_exists('mb_convert_encoding')) {
            return mb_convert_encoding($str, $out_charset, $in_charset);
        } else {
            app_base::load_sys_func('iconv');
            $in_charset = strtoupper($in_charset);
            $out_charset = strtoupper($out_charset);
            if ($in_charset == 'UTF-8' && ($out_charset == 'GBK' || $out_charset == 'GB2312')) {
                return utf8_to_gbk($str);
            }
            if (($in_charset == 'GBK' || $in_charset == 'GB2312') && $out_charset == 'UTF-8') {
                return gbk_to_utf8($str);
            }
            return $str;
        }
    }
}

/**
 * 文件下载
 * @param $filepath 文件路径
 * @param $filename 文件名称
 */

function file_down($filepath, $filename = '') {
    if(!$filename) $filename = basename($filepath);
    if(is_ie()) $filename = rawurlencode($filename);
    $filetype = fileext($filename);
    $filesize = sprintf("%u", filesize($filepath));
    if(ob_get_length() !== false) @ob_end_clean();
    header('Pragma: public');
    header('Last-Modified: '.gmdate('D, d M Y H:i:s') . ' GMT');
    header('Cache-Control: no-store, no-cache, must-revalidate');
    header('Cache-Control: pre-check=0, post-check=0, max-age=0');
    header('Content-Transfer-Encoding: binary');
    header('Content-Encoding: none');
    header('Content-type: '.$filetype);
    header('Content-Disposition: attachment; filename="'.$filename.'"');
    header('Content-length: '.$filesize);
    readfile($filepath);
    exit;
}

/**
 * 判断字符串是否为utf8编码，英文和半角字符返回ture
 * @param $string
 * @return bool
 */
function is_utf8($string) {
    return preg_match('%^(?:
                    [\x09\x0A\x0D\x20-\x7E] # ASCII
                    | [\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte
                    | \xE0[\xA0-\xBF][\x80-\xBF] # excluding overlongs
                    | [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} # straight 3-byte
                    | \xED[\x80-\x9F][\x80-\xBF] # excluding surrogates
                    | \xF0[\x90-\xBF][\x80-\xBF]{2} # planes 1-3
                    | [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15
                    | \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16
                    )*$%xs', $string);
}

/**
 * 组装生成ID号
 * @param $modules 模块名
 * @param $contentid 内容ID
 * @param $siteid 站点ID
 */
function id_encode($modules,$contentid, $siteid) {
    return urlencode($modules.'-'.$contentid.'-'.$siteid);
}