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Detailed explanation of basic operation examples of PHP data submission and filtering

黄舟
黄舟Original
2017-02-24 09:20:291256browse

本文实例讲述了PHP数据的提交与过滤基本操作。分享给大家供大家参考,具体如下:

1、php提交数据过滤的基本原则

1)提交变量进数据库时,我们必须使用addslashes()进行过滤,像我们的注入问题,一个addslashes()也就搞定了。其实在涉及到变量取值时,intval()函数对字符串的过滤也是个不错的选择。

2)在php.ini中开启magic_quotes_gpc和magic_quotes_runtime。magic_quotes_gpc可以把get,post,cookie里的引号变为斜杠。

magic_quotes_runtime对于进出数据库的数据可以起到格式话的作用。其实,早在以前注入很疯狂时,这个参数就很流行了。

3)在使用系统函数时,必须使用escapeshellarg(),escapeshellcmd()参数去过滤,这样你也就可以放心的使用系统函数。

4)对于跨站,strip_tags(),htmlspecialchars()两个参数都不错,对于用户提交的的带有html和php的标记都将进行转换。比如尖括号"<"就将转化为 "<"这样无害的字符。

$new = htmlspecialchars("<a href=&#39;test&#39;>Test</a>", ENT_QUOTES);
strip_tags($text,);



5)对于相关函数的过滤,就像先前的include(),unlink,fopen()等等,只要你把你所要执行操作的变量指定好或者对相关字符过滤严密,我想

这样也就无懈可击了。

2、PHP简单的数据过滤

1)入库:  trim($str),addslashes($str)

2)出库:  stripslashes($str)

3)显示:  htmlspecialchars(nl2br($str))

<?php
/**
 * global.func.php 公共函数库
 */
/**
 * 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 = &#39;utf-8&#39;;
 if(strtolower(CHARSET)==&#39;gbk&#39;) $encoding = &#39;ISO-8859-15&#39;;
 if(!is_array($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 = &#39;utf-8&#39;;
 if(strtolower(CHARSET)==&#39;gbk&#39;) $encoding = &#39;ISO-8859-15&#39;;
 return html_entity_decode($string,ENT_QUOTES,$encoding);
}
function new_htmlentities($string) {
 $encoding = &#39;utf-8&#39;;
 if(strtolower(CHARSET)==&#39;gbk&#39;) $encoding = &#39;ISO-8859-15&#39;;
 return htmlentities($string,ENT_QUOTES,$encoding);
}
/**
 * 安全过滤函数
 *
 * @param $string
 * @return string
 */
function safe_replace($string) {
 $string = str_replace(&#39;%20&#39;,&#39;&#39;,$string);
 $string = str_replace(&#39;%27&#39;,&#39;&#39;,$string);
 $string = str_replace(&#39;%2527&#39;,&#39;&#39;,$string);
 $string = str_replace(&#39;*&#39;,&#39;&#39;,$string);
 $string = str_replace(&#39;"&#39;,&#39;"&#39;,$string);
 $string = str_replace("&#39;",&#39;&#39;,$string);
 $string = str_replace(&#39;"&#39;,&#39;&#39;,$string);
 $string = str_replace(&#39;;&#39;,&#39;&#39;,$string);
 $string = str_replace(&#39;<&#39;,&#39;<&#39;,$string);
 $string = str_replace(&#39;>&#39;,&#39;>&#39;,$string);
 $string = str_replace("{",&#39;&#39;,$string);
 $string = str_replace(&#39;}&#39;,&#39;&#39;,$string);
 $string = str_replace(&#39;\\&#39;,&#39;&#39;,$string);
 return $string;
}
/**
 * xss过滤函数
 *
 * @param $string
 * @return string
 */
function remove_xss($string) {
 $string = preg_replace(&#39;/[\x00-\x08\x0B\x0C\x0E-\x1F\x7F]+/S&#39;, &#39;&#39;, $string);
 $parm1 = Array(
 &#39;javascript&#39;, 
 &#39;vbscript&#39;,
  &#39;expression&#39;,
  &#39;applet&#39;,
   &#39;meta&#39;, 
   &#39;xml&#39;,
    &#39;blink&#39;, 
    &#39;link&#39;, 
    &#39;script&#39;, 
    &#39;embed&#39;, 
    &#39;object&#39;, 
    &#39;iframe&#39;, 
    &#39;frame&#39;, 
    &#39;frameset&#39;, 
    &#39;ilayer&#39;, 
    &#39;layer&#39;, 
    &#39;bgsound&#39;, 
    &#39;title&#39;, 
    &#39;base&#39;);
 $parm2 = Array(
 &#39;onabort&#39;, 
 &#39;onactivate&#39;, 
 &#39;onafterprint&#39;,
  &#39;onafterupdate&#39;,
   &#39;onbeforeactivate&#39;,
    &#39;onbeforecopy&#39;, 
    &#39;onbeforecut&#39;, 
    &#39;onbeforedeactivate&#39;, 
    &#39;onbeforeeditfocus&#39;, 
    &#39;onbeforepaste&#39;, 
    &#39;onbeforeprint&#39;, 
    &#39;onbeforeunload&#39;, 
    &#39;onbeforeupdate&#39;, 
    &#39;onblur&#39;, 
    &#39;onbounce&#39;, 
    &#39;oncellchange&#39;, 
    &#39;onchange&#39;, 
    &#39;onclick&#39;, 
    &#39;oncontextmenu&#39;, 
    &#39;oncontrolselect&#39;, 
    &#39;oncopy&#39;, 
    &#39;oncut&#39;, 
    &#39;ondataavailable&#39;, 
    &#39;ondatasetchanged&#39;, 
    &#39;ondatasetcomplete&#39;, 
    &#39;ondblclick&#39;, 
    &#39;ondeactivate&#39;, 
    &#39;ondrag&#39;, 
    &#39;ondragend&#39;, 
    &#39;ondragenter&#39;, 
    &#39;ondragleave&#39;, 
    &#39;ondragover&#39;, 
    &#39;ondragstart&#39;, 
    &#39;ondrop&#39;, 
    &#39;onerror&#39;, 
    &#39;onerrorupdate&#39;, 
    &#39;onfilterchange&#39;, 
    &#39;onfinish&#39;, 
    &#39;onfocus&#39;, 
    &#39;onfocusin&#39;, 
    &#39;onfocusout&#39;, 
    &#39;onhelp&#39;, 
    &#39;onkeydown&#39;, 
    &#39;onkeypress&#39;, 
    &#39;onkeyup&#39;, 
    &#39;onlayoutcomplete&#39;, 
    &#39;onload&#39;, 
    &#39;onlosecapture&#39;, 
    &#39;onmousedown&#39;, 
    &#39;onmouseenter&#39;, 
    &#39;onmouseleave&#39;, 
    &#39;onmousemove&#39;, 
    &#39;onmouseout&#39;, 
    &#39;onmouseover&#39;, 
    &#39;onmouseup&#39;, 
    &#39;onmousewheel&#39;, 
    &#39;onmove&#39;, 
    &#39;onmoveend&#39;, 
    &#39;onmovestart&#39;, 
    &#39;onpaste&#39;, 
    &#39;onpropertychange&#39;, 
    &#39;onreadystatechange&#39;, 
    &#39;onreset&#39;, 
    &#39;onresize&#39;, 
    &#39;onresizeend&#39;, 
    &#39;onresizestart&#39;, 
    &#39;onrowenter&#39;, 
    &#39;onrowexit&#39;, 
    &#39;onrowsdelete&#39;, 
    &#39;onrowsinserted&#39;, 
    &#39;onscroll&#39;, 
    &#39;onselect&#39;, 
    &#39;onselectionchange&#39;, 
    &#39;onselectstart&#39;, 
    &#39;onstart&#39;, 
    &#39;onstop&#39;, 
    &#39;onsubmit&#39;, 
    &#39;onunload&#39;);
 $parm = array_merge($parm1, $parm2);
 for ($i = 0; $i < sizeof($parm); $i++) {
  $pattern = &#39;/&#39;;
  for ($j = 0; $j < strlen($parm[$i]); $j++) {
   if ($j > 0) {
    $pattern .= &#39;(&#39;;
    $pattern .= &#39;([x|X]0([9][a][b]);?)?&#39;;
    $pattern .= &#39;|(([9][10][13]);?)?&#39;;
    $pattern .= &#39;)?&#39;;
   }
   $pattern .= $parm[$i][$j];
  }
  $pattern .= &#39;/i&#39;;
  $string = preg_replace($pattern, &#39; &#39;, $string);
 }
 return $string;
}
/**
 * 过滤ASCII码从0-28的控制字符
 * @return String
 */
function trim_unsafe_control_chars($str) {
 $rule = &#39;/[&#39; . chr ( 1 ) . &#39;-&#39; . chr ( 8 ) . chr ( 11 ) . &#39;-&#39; . chr ( 12 ) . chr ( 14 ) . &#39;-&#39; . chr ( 31 ) . &#39;]*/&#39;;
 return str_replace ( chr ( 0 ), &#39;&#39;, preg_replace ( $rule, &#39;&#39;, $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 ( &#39; &#39;, &#39; &#39;, $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(&#39;&#39;, &#39;&#39;, &#39;&#39;), $string));
 return $isjs ? &#39;document.write("&#39;.$string.&#39;");&#39; : $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 ( &#39;/\<([\/]?)script([^\>]*?)\>/si&#39;, &#39;<\\1script\\2>&#39;, $str );
  $str = preg_replace ( &#39;/\<([\/]?)iframe([^\>]*?)\>/si&#39;, &#39;<\\1iframe\\2>&#39;, $str );
  $str = preg_replace ( &#39;/\<([\/]?)frame([^\>]*?)\>/si&#39;, &#39;<\\1frame\\2>&#39;, $str );
  $str = str_replace ( &#39;javascript:&#39;, &#39;javascript:&#39;, $str );
  }
 return $str;
}
/**
 * 获取当前页面完整URL地址
 */
function get_url() {
 $sys_protocal = isset($_SERVER[&#39;SERVER_PORT&#39;]) && $_SERVER[&#39;SERVER_PORT&#39;] == &#39;443&#39; ? &#39;https://&#39; : &#39;http://&#39;;
 $php_self = $_SERVER[&#39;PHP_SELF&#39;] ? safe_replace($_SERVER[&#39;PHP_SELF&#39;]) : safe_replace($_SERVER[&#39;SCRIPT_NAME&#39;]);
 $path_info = isset($_SERVER[&#39;PATH_INFO&#39;]) ? safe_replace($_SERVER[&#39;PATH_INFO&#39;]) : &#39;&#39;;
 $relate_url = isset($_SERVER[&#39;REQUEST_URI&#39;]) ? safe_replace($_SERVER[&#39;REQUEST_URI&#39;]) : 
 $php_self.(isset($_SERVER[&#39;QUERY_STRING&#39;]) ? &#39;?&#39;.safe_replace($_SERVER[&#39;QUERY_STRING&#39;]) : $path_info);
 return $sys_protocal.(isset($_SERVER[&#39;HTTP_HOST&#39;]) ? $_SERVER[&#39;HTTP_HOST&#39;] : &#39;&#39;).$relate_url;
}
/**
 * 字符截取 支持UTF8/GBK
 * @param $string
 * @param $length
 * @param $dot
 */
function str_cut($string, $length, $dot = &#39;...&#39;) {
 $strlen = strlen($string);
 if($strlen <= $length) return $string;
 $string = str_replace(array(&#39; &#39;,&#39; &#39;, &#39;&&#39;, &#39;"&#39;, &#39;&#39;&#39;, &#39;“&#39;, &#39;”&#39;, &#39;—&#39;, &#39;<&#39;, &#39;>&#39;, &#39;·&#39;, &#39;…&#39;), 
 array(&#39;∵&#39;,&#39; &#39;, &#39;&&#39;, &#39;"&#39;, "&#39;", &#39;“&#39;, &#39;”&#39;, &#39;―&#39;, &#39;<&#39;, &#39;>&#39;, &#39;・&#39;, &#39;…&#39;), $string);
 $strcut = &#39;&#39;;
 if(strtolower(CHARSET) == &#39;utf-8&#39;) {
  $length = intval($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(&#39;∵&#39;, &#39;&&#39;, &#39;"&#39;, "&#39;", &#39;“&#39;, &#39;”&#39;, &#39;―&#39;, &#39;<&#39;, &#39;>&#39;, &#39;・&#39;, &#39;…&#39;), 
  array(&#39; &#39;, &#39;&&#39;, &#39;"&#39;, &#39;&#39;&#39;, &#39;“&#39;, &#39;”&#39;, &#39;—&#39;, &#39;<&#39;, &#39;>&#39;, &#39;·&#39;, &#39;…&#39;), $strcut);
 } else {
  $dotlen = strlen($dot);
  $maxi = $length - $dotlen - 1;
  $current_str = &#39;&#39;;
  $search_arr = array(&#39;&&#39;,&#39; &#39;, &#39;"&#39;, "&#39;", &#39;“&#39;, &#39;”&#39;, &#39;―&#39;, &#39;<&#39;, &#39;>&#39;, &#39;・&#39;, &#39;…&#39;,&#39;∵&#39;);
  $replace_arr = array(&#39;&&#39;,&#39; &#39;, &#39;"&#39;, &#39;&#39;&#39;, &#39;“&#39;, &#39;”&#39;, &#39;—&#39;, &#39;<&#39;, &#39;>&#39;, &#39;·&#39;, &#39;…&#39;,&#39; &#39;);
  $search_flip = array_flip($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(&#39;HTTP_CLIENT_IP&#39;) && strcasecmp(getenv(&#39;HTTP_CLIENT_IP&#39;), &#39;unknown&#39;)) {
  $ip = getenv(&#39;HTTP_CLIENT_IP&#39;);
 } elseif(getenv(&#39;HTTP_X_FORWARDED_FOR&#39;) && strcasecmp(getenv(&#39;HTTP_X_FORWARDED_FOR&#39;), &#39;unknown&#39;)) {
  $ip = getenv(&#39;HTTP_X_FORWARDED_FOR&#39;);
 } elseif(getenv(&#39;REMOTE_ADDR&#39;) && strcasecmp(getenv(&#39;REMOTE_ADDR&#39;), &#39;unknown&#39;)) {
  $ip = getenv(&#39;REMOTE_ADDR&#39;);
 } elseif(isset($_SERVER[&#39;REMOTE_ADDR&#39;]) && $_SERVER[&#39;REMOTE_ADDR&#39;] && 
 strcasecmp($_SERVER[&#39;REMOTE_ADDR&#39;], &#39;unknown&#39;)) {
  $ip = $_SERVER[&#39;REMOTE_ADDR&#39;];
 }
 return preg_match ( &#39;/[\d\.]{7,15}/&#39;, $ip, $matches ) ? $matches [0] : &#39;&#39;;
}
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 ( &#39; &#39;, SYS_START_TIME );
 $etime = explode ( &#39; &#39;, microtime () );
 return number_format ( ($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 == &#39;&#39;) 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 == &#39;&#39;) return &#39;&#39;;
 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 .&#39; GB&#39;;
 } elseif ($filesize >= 1048576) {
  $filesize = round($filesize / 1048576 * 100) / 100 .&#39; MB&#39;;
 } elseif($filesize >= 1024) {
  $filesize = round($filesize / 1024 * 100) / 100 . &#39; KB&#39;;
 } else {
  $filesize = $filesize.&#39; Bytes&#39;;
 }
 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 = &#39;ENCODE&#39;, $key = &#39;&#39;, $expiry = 0) {
 $key_length = 4;
 $key = md5($key != &#39;&#39; ? $key : app_base::load_config(&#39;system&#39;, &#39;auth_key&#39;));
 $fixedkey = md5($key);
 $egiskeys = md5(substr($fixedkey, 16, 16));
 $runtokey = $key_length ? ($operation == &#39;ENCODE&#39; ? substr(md5(microtime(true)), -$key_length) : substr($string, 0, $key_length)) : &#39;&#39;;
 $keys = md5(substr($runtokey, 0, 16) . substr($fixedkey, 0, 16) . substr($runtokey, 16) . substr($fixedkey, 16));
 $string = $operation == &#39;ENCODE&#39; ? sprintf(&#39;%010d&#39;, $expiry ? $expiry + time() : 0).substr(md5($string.$egiskeys), 0, 16) . 
 $string : base64_decode(substr($string, $key_length));
 $i = 0; $result = &#39;&#39;;
 $string_length = strlen($string);
 for ($i = 0; $i < $string_length; $i++){
  $result .= chr(ord($string{$i}) ^ ord($keys{$i % 32}));
 }
 if($operation == &#39;ENCODE&#39;) {
  return $runtokey . str_replace(&#39;=&#39;, &#39;&#39;, base64_encode($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 &#39;&#39;;
  }
 }
}
/**
* 语言文件处理
*
* @param string  $language 标示符
* @param array  $pars 转义的数组,二维数组 ,&#39;key1&#39;=>&#39;value1&#39;,&#39;key2&#39;=>&#39;value2&#39;,
* @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 = &#39;no_language&#39;,$pars = array(), $modules = &#39;&#39;) {
 static $LANG = array();
 static $LANG_MODULES = array();
 static $lang = &#39;&#39;;
 if(defined(&#39;IN_ADMIN&#39;)) {
  $lang = SYS_STYLE ? SYS_STYLE : &#39;zh-cn&#39;;
 } else {
  $lang = app_base::load_config(&#39;system&#39;,&#39;lang&#39;);
 }
 if(!$LANG) {
  require_once CODE_PATH.&#39;languages&#39;.DIRECTORY_SEPARATOR.$lang.DIRECTORY_SEPARATOR.&#39;system.lang.php&#39;;
  if(defined(&#39;IN_ADMIN&#39;)) require_once CODE_PATH.&#39;languages&#39;.DIRECTORY_SEPARATOR.$lang.DIRECTORY_SEPARATOR.&#39;system_menu.lang.php&#39;;
  if(file_exists(CODE_PATH.&#39;languages&#39;.DIRECTORY_SEPARATOR.$lang.DIRECTORY_SEPARATOR.ROUTE_M.&#39;.lang.php&#39;)) require_once CODE_PATH.&#39;languages&#39;.
  DIRECTORY_SEPARATOR.$lang.DIRECTORY_SEPARATOR.ROUTE_M.&#39;.lang.php&#39;;
 }
 if(!empty($modules)) {
  $modules = explode(&#39;,&#39;,$modules);
  foreach($modules AS $m) {
   if(!isset($LANG_MODULES[$m])) require_once CODE_PATH.&#39;languages&#39;.DIRECTORY_SEPARATOR.$lang.DIRECTORY_SEPARATOR.$m.&#39;.lang.php&#39;;
  }
 }
 if(!array_key_exists($language,$LANG)) {
  return $language;
 } else {
  $language = $LANG[$language];
  if($pars) {
   foreach($pars AS $_k=>$_v) {
    $language = str_replace(&#39;{&#39;.$_k.&#39;}&#39;,$_v,$language);
   }
  }
  return $language;
 }
}
/**
 * 模板调用
 *
 * @param $module
 * @param $template
 * @param $istag
 * @return unknown_type
 */
function template($module = &#39;content&#39;, $template = &#39;index&#39;, $style = &#39;&#39;) {
 if(strpos($module, &#39;plugin/&#39;)!== false) {
  $plugin = str_replace(&#39;plugin/&#39;, &#39;&#39;, $module);
  return p_template($plugin, $template,$style);
 }
 $module = str_replace(&#39;/&#39;, DIRECTORY_SEPARATOR, $module);
 if(!empty($style) && preg_match(&#39;/([a-z0-9\-_]+)/is&#39;,$style)) {
 } elseif (empty($style) && !defined(&#39;STYLE&#39;)) {
  if(defined(&#39;SITEID&#39;)) {
   $siteid = SITEID;
  } else {
   $siteid = param::get_cookie(&#39;siteid&#39;);
  }
  if (!$siteid) $siteid = 1;
  $sitelist = getcache(&#39;sitelist&#39;,&#39;commons&#39;);
  if(!empty($siteid)) {
   $style = $sitelist[$siteid][&#39;default_style&#39;];
  }
 } elseif (empty($style) && defined(&#39;STYLE&#39;)) {
  $style = STYLE;
 } else {
  $style = &#39;default&#39;;
 }
 if(!$style) $style = &#39;default&#39;;
 $template_cache = app_base::load_sys_class(&#39;template_cache&#39;);
 $compiledtplfile = ROOT_PATH.&#39;caches&#39;.DIRECTORY_SEPARATOR.&#39;caches_template&#39;.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.&#39;.php&#39;;
 if(file_exists(CODE_PATH.&#39;templates&#39;.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.&#39;.html&#39;)) {
  if(!file_exists($compiledtplfile) || (@filemtime(CODE_PATH.&#39;templates&#39;.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.
  $module.DIRECTORY_SEPARATOR.$template.&#39;.html&#39;) > @filemtime($compiledtplfile))) {
   $template_cache->template_compile($module, $template, $style);
  }
 } else {
  $compiledtplfile = ROOT_PATH.&#39;caches&#39;.DIRECTORY_SEPARATOR.&#39;caches_template&#39;.DIRECTORY_SEPARATOR.&#39;default&#39;.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.&#39;.php&#39;;
  if(!file_exists($compiledtplfile) || (file_exists(CODE_PATH.&#39;templates&#39;.DIRECTORY_SEPARATOR.&#39;default&#39;.DIRECTORY_SEPARATOR.$module.
  DIRECTORY_SEPARATOR.$template.&#39;.html&#39;) && filemtime(CODE_PATH.&#39;templates&#39;.DIRECTORY_SEPARATOR.&#39;default&#39;.DIRECTORY_SEPARATOR.$module.
  DIRECTORY_SEPARATOR.$template.&#39;.html&#39;) > filemtime($compiledtplfile))) {
   $template_cache->template_compile($module, $template, &#39;default&#39;);
  } elseif (!file_exists(CODE_PATH.&#39;templates&#39;.DIRECTORY_SEPARATOR.&#39;default&#39;.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.&#39;.html&#39;)) {
   showmessage(&#39;Template does not exist.&#39;.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.$module.DIRECTORY_SEPARATOR.$template.&#39;.html&#39;);
  }
 }
 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 &#39;&#39;;
 $errfile = str_replace(ROOT_PATH,&#39;&#39;,$errfile);
 if(app_base::load_config(&#39;system&#39;,&#39;errorlog&#39;)) {
  error_log(&#39;<?php exit;?>&#39;.date(&#39;m-d H:i:s&#39;,SYS_TIME).&#39; | &#39;.$errno.&#39; | &#39;.str_pad($errstr,30).&#39; | &#39;.$errfile.&#39; | &#39;.$errline."\r\n", 3, CACHE_PATH.&#39;error_log.php&#39;);
 } else {
  $str = &#39;<p 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:&#39; . $errno . &#39;,str:&#39; . $errstr . &#39;,file:<font color="blue">&#39; .
   $errfile . &#39;</font>,line&#39; . $errline .&#39;<br />Need Help?</span></p>&#39;;
  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(&#39;登录成功&#39;, array(&#39;默认跳转地址&#39;=>&#39;http://www.baidu.com&#39;));
 * @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 = &#39;goback&#39;, $ms = 1250, $dialog = &#39;&#39;, $returnjs = &#39;&#39;) {
 if(defined(&#39;IN_ADMIN&#39;)) {
  include(admin::admin_tpl(&#39;showmessage&#39;, &#39;admin&#39;));
 } else {
  include(template(&#39;content&#39;, &#39;message&#39;));
 }
 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, &#39;.&#39;), 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 = &#39;tpl_data&#39;;
 $info = getcacheinfo($name, $filepath);
 if (SYS_TIME - $info[&#39;filemtime&#39;] >= $times) {
  return false;
 } else {
  return getcache($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=&#39;&#39;, $type=&#39;file&#39;, $c AND &#39;, $in_column = false) {
 if($in_column && is_array($data)) {
  $ids = &#39;\&#39;&#39;.implode(&#39;\&#39;,\&#39;&#39;, $data).&#39;\&#39;&#39;;
  $sql = "$in_column IN ($ids)";
  return $sql;
 } else {
  if ($front == &#39;&#39;) {
   $front = &#39; AND &#39;;
  }
  if(is_array($data) && count($data) > 0) {
   $sql = &#39;&#39;;
   foreach ($data as $key => $val) {
    $sql .= $sql ? " $front $key = &#39;$val&#39; " : " $key = &#39;$val&#39; ";
   }
   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 = &#39;&#39;, $array = array(),$setpages = 10) {
 if(defined(&#39;URLRULE&#39;) && $urlrule == &#39;&#39;) {
  $urlrule = URLRULE;
  $array = $GLOBALS[&#39;URL_ARRAY&#39;];
 } elseif($urlrule == &#39;&#39;) {
  $urlrule = url_par(&#39;page={$page}&#39;);
 }
 $multipage = &#39;&#39;;
 if($num > $perpage) {
  $page = $setpages+1;
  $offset = ceil($setpages/2-1);
  $pages = ceil($num / $perpage);
  if (defined(&#39;IN_ADMIN&#39;) && !defined(&#39;PAGES&#39;)) define(&#39;PAGES&#39;, $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 .= &#39;<a class="a1">&#39;.$num.L(&#39;page_item&#39;).&#39;</a>&#39;;
  if($curr_page>0) {
   $multipage .= &#39; <a href="&#39;.pageurl($urlrule, $curr_page-1, $array).&#39;" class="a1">&#39;.L(&#39;previous&#39;).&#39;</a>&#39;;
   if($curr_page==1) {
    $multipage .= &#39; <span>1</span>&#39;;
   } elseif($curr_page>6 && $more) {
    $multipage .= &#39; <a href="&#39;.pageurl($urlrule, 1, $array).&#39;">1</a>..&#39;;
   } else {
    $multipage .= &#39; <a href="&#39;.pageurl($urlrule, 1, $array).&#39;">1</a>&#39;;
   }
  }
  for($i = $from; $i <= $to; $i++) {
   if($i != $curr_page) {
    $multipage .= &#39; <a href="&#39;.pageurl($urlrule, $i, $array).&#39;">&#39;.$i.&#39;</a>&#39;;
   } else {
    $multipage .= &#39; <span>&#39;.$i.&#39;</span>&#39;;
   }
  }
  if($curr_page<$pages) {
   if($curr_page<$pages-5 && $more) {
    $multipage .= &#39; ..<a href="&#39;.pageurl($urlrule, $pages, $array).&#39;">&#39;.$pages.&#39;</a> <a href="&#39;.pageurl($urlrule, $curr_page+1, $array).&#39;" class="a1">&#39;.L(&#39;next&#39;).&#39;</a>&#39;;
   } else {
    $multipage .= &#39; <a href="&#39;.pageurl($urlrule, $pages, $array).&#39;">&#39;.$pages.&#39;</a> <a href="&#39;.pageurl($urlrule, $curr_page+1, $array).&#39;" class="a1">&#39;.L(&#39;next&#39;).&#39;</a>&#39;;
   }
  } elseif($curr_page==$pages) {
   $multipage .= &#39; <span>&#39;.$pages.&#39;</span> <a href="&#39;.pageurl($urlrule, $curr_page, $array).&#39;" class="a1">&#39;.L(&#39;next&#39;).&#39;</a>&#39;;
  } else {
   $multipage .= &#39; <a href="&#39;.pageurl($urlrule, $pages, $array).&#39;">&#39;.$pages.&#39;</a> <a href="&#39;.pageurl($urlrule, $curr_page+1, $array).&#39;" class="a1">&#39;.L(&#39;next&#39;).&#39;</a>&#39;;
  }
 }
 return $multipage;
}
function pages1($num, $curr_page, $perpage = 20, $urlrule = &#39;&#39;, $array = array(),$setpages = 10) {
 if(defined(&#39;URLRULE&#39;) && $urlrule == &#39;&#39;) {
  $urlrule = URLRULE;
  $array = $GLOBALS[&#39;URL_ARRAY&#39;];
 } elseif($urlrule == &#39;&#39;) {
  $urlrule = url_par(&#39;page={$page}&#39;);
 }
 $multipage = &#39;&#39;;
 if($num > $perpage) {
  $page = $setpages+1;
  $offset = ceil($setpages/2-1);
  $pages = ceil($num / $perpage);
  if (defined(&#39;IN_ADMIN&#39;) && !defined(&#39;PAGES&#39;)) define(&#39;PAGES&#39;, $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 .= &#39;<a class="a1">&#39;.$num.L(&#39;page_item&#39;).&#39;</a>&#39;;
  if($curr_page>0) {
   $multipage .= &#39; <a href="###" class="a1">&#39;.L(&#39;previous&#39;).&#39;</a>&#39;;
   if($curr_page==1) {
    $multipage .= &#39; <span>1</span>&#39;;
   } elseif($curr_page>6 && $more) {
    $multipage .= &#39; <a href="###" /a>..&#39;;
   } else {
    $multipage .= &#39; <a href="###" /a>&#39;;
   }
  }
  for($i = $from; $i <= $to; $i++) {
   if($i != $curr_page) {
    $multipage .= &#39; <a href="###" /a>&#39;;
   } else {
    $multipage .= &#39; <span>&#39;.$i.&#39;</span>&#39;;
   }
  }
  if($curr_page<$pages) {
   if($curr_page<$pages-5 && $more) {
    $multipage .= &#39; ..<a href="###" /a> <a href="###" class="a1">&#39;.L(&#39;next&#39;).&#39;</a>&#39;;
   } else {
    $multipage .= &#39; <a href="###" /a> <a href="###" class="a1">&#39;.L(&#39;next&#39;).&#39;</a>&#39;;
   }
  } elseif($curr_page==$pages) {
   $multipage .= &#39; <span>&#39;.$pages.&#39;</span> <a href="###" class="a1">&#39;.L(&#39;next&#39;).&#39;</a>&#39;;
  } else {
   $multipage .= &#39; <a href="###" /a> <a href="###" class="a1">&#39;.L(&#39;next&#39;).&#39;</a>&#39;;
  }
 }
 return $multipage;
}
function pages2($num, $curr_page, $pages, $urlrule = &#39;&#39;, $array = array(),$setpages = 10) {
 if(defined(&#39;URLRULE&#39;) && $urlrule == &#39;&#39;) {
  $urlrule = URLRULE;
  $array = $GLOBALS[&#39;URL_ARRAY&#39;];
 } elseif($urlrule == &#39;&#39;) {
  $urlrule = url_par(&#39;page={$page}&#39;);
 }
 $multipage = &#39;&#39;;
 if($pages > 1) {
  $page = $setpages+1;
  $offset = ceil($setpages/2-1);
  if (defined(&#39;IN_ADMIN&#39;) && !defined(&#39;PAGES&#39;)) define(&#39;PAGES&#39;, $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 .= &#39;<a class="a1">&#39;.$num.L(&#39;page_item&#39;).&#39;</a>&#39;;
  if($curr_page>0) {
   $multipage .= &#39; <a href="###" class="a1">&#39;.L(&#39;previous&#39;).&#39;</a>&#39;;
   if($curr_page==1) {
    $multipage .= &#39; <span>1</span>&#39;;
   } elseif($curr_page>6 && $more) {
    $multipage .= &#39; <a href="###" /a>..&#39;;
   } else {
    $multipage .= &#39; <a href="###" /a>&#39;;
   }
  }
  for($i = $from; $i <= $to; $i++) {
   if($i != $curr_page) {
    $multipage .= &#39; <a href="###" /a>&#39;;
   } else {
    $multipage .= &#39; <span>&#39;.$i.&#39;</span>&#39;;
   }
  }
  if($curr_page<$pages) {
   if($curr_page<$pages-5 && $more) {
    $multipage .= &#39; ..<a href="###" /a> <a href="###" class="a1">&#39;.L(&#39;next&#39;).&#39;</a>&#39;;
   } else {
    $multipage .= &#39; <a href="###" /a> <a href="###" class="a1">&#39;.L(&#39;next&#39;).&#39;</a>&#39;;
   }
  } elseif($curr_page==$pages) {
   $multipage .= &#39; <span>&#39;.$pages.&#39;</span> <a href="###" class="a1">&#39;.L(&#39;next&#39;).&#39;</a>&#39;;
  } else {
   $multipage .= &#39; <a href="###" /a> <a href="###" class="a1">&#39;.L(&#39;next&#39;).&#39;</a>&#39;;
  }
 }
 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, &#39;~&#39;)) {
  $urlrules = explode(&#39;~&#39;, $urlrule);
  $urlrule = $page < 2 ? $urlrules[0] : $urlrules[1];
 }
 $findme = array(&#39;{$page}&#39;);
 $replaceme = array($page);
 if (is_array($array)) foreach ($array as $k=>$v) {
  $findme[] = &#39;{$&#39;.$k.&#39;}&#39;;
  $replaceme[] = $v;
 }
 $url = str_replace($findme, $replaceme, $urlrule);
 $url = str_replace(array(&#39;http://&#39;,&#39;//&#39;,&#39;~&#39;), array(&#39;~&#39;,&#39;/&#39;,&#39;http://&#39;), $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, $url = &#39;&#39;) {
 if($url == &#39;&#39;) $url = get_url();
 $pos = strpos($url, &#39;?&#39;);
 if($pos === false) {
  $url .= &#39;?&#39;.$par;
 } else {
  $querystring = substr(strstr($url, &#39;?&#39;), 1);
  parse_str($querystring, $pars);
  $query_array = array();
  foreach($pars as $k=>$v) {
   if($k != &#39;page&#39;) $query_array[$k] = $v;
  }
  $querystring = http_build_query($query_array).&#39;&&#39;.$par;
  $url = substr($url, 0, $pos).&#39;?&#39;.$querystring;
 }
 return $url;
}
/**
 * 判断email格式是否正确
 * @param $email
 */
function is_email($email) {
 return strlen($email) > 6 && preg_match("/^[\w\-\.]+@[\w\-\.]+(\.\w+)+$/", $email);
}
/**
 * iconv 编辑转换
 */
if (!function_exists(&#39;iconv&#39;)) {
 function iconv($in_charset, $out_charset, $str) {
  $in_charset = strtoupper($in_charset);
  $out_charset = strtoupper($out_charset);
  if (function_exists(&#39;mb_convert_encoding&#39;)) {
   return mb_convert_encoding($str, $out_charset, $in_charset);
  } else {
   app_base::load_sys_func(&#39;iconv&#39;);
   $in_charset = strtoupper($in_charset);
   $out_charset = strtoupper($out_charset);
   if ($in_charset == &#39;UTF-8&#39; && ($out_charset == &#39;GBK&#39; || $out_charset == &#39;GB2312&#39;)) {
    return utf8_to_gbk($str);
   }
   if (($in_charset == &#39;GBK&#39; || $in_charset == &#39;GB2312&#39;) && $out_charset == &#39;UTF-8&#39;) {
    return gbk_to_utf8($str);
   }
   return $str;
  }
 }
}
/**
 * 代码广告展示函数
 * @param intval $siteid 所属站点
 * @param intval $id 广告ID
 * @return 返回广告代码
 */
function show_ad($siteid, $id) {
 $siteid = intval($siteid);
 $id = intval($id);
 if(!$id || !$siteid) return false;
 $p = app_base::load_model(&#39;poster_model&#39;);
 $r = $p->get_one(array(&#39;spaceid&#39;=>$id, &#39;siteid&#39;=>$siteid), &#39;disabled, setting&#39;, &#39;id ASC&#39;);
 if ($r[&#39;disabled&#39;]) return &#39;&#39;;
 if ($r[&#39;setting&#39;]) {
  $c = string2array($r[&#39;setting&#39;]);
 } else {
  $r[&#39;code&#39;] = &#39;&#39;;
 }
 return $c[&#39;code&#39;];
}
/**
 * 获取当前的站点ID
 */
function get_siteid() {
 static $siteid;
 if (!empty($siteid)) return $siteid;
 if (defined(&#39;IN_ADMIN&#39;)) {
  if ($d = param::get_cookie(&#39;siteid&#39;)) {
   $siteid = $d;
  } else {
   return &#39;&#39;;
  }
 } else {
  $data = getcache(&#39;sitelist&#39;, &#39;commons&#39;);
  if(!is_array($data)) return &#39;1&#39;;
  $site_url = SITE_PROTOCOL.SITE_URL;
  foreach ($data as $v) {
   if ($v[&#39;url&#39;] == $site_url.&#39;/&#39;) $siteid = $v[&#39;siteid&#39;];
  }
 }
 if (empty($siteid)) $siteid = 1;
 return $siteid;
}
/**
 * 获取用户昵称
 * 不传入userid取当前用户nickname,如果nickname为空取username
 * 传入field,取用户$field字段信息
 */
function get_nickname($userid=&#39;&#39;, $field=&#39;&#39;) {
 $return = &#39;&#39;;
 if(is_numeric($userid)) {
  $member_db = app_base::load_model(&#39;member_model&#39;);
  $memberinfo = $member_db->get_one(array(&#39;userid&#39;=>$userid));
  if(!empty($field) && $field != &#39;nickname&#39; && isset($memberinfo[$field]) &&!empty($memberinfo[$field])) {
   $return = $memberinfo[$field];
  } else {
   $return = isset($memberinfo[&#39;nickname&#39;]) && !empty($memberinfo[&#39;nickname&#39;]) ? $memberinfo[&#39;nickname&#39;].&#39;(&#39;.$memberinfo[&#39;username&#39;].&#39;)&#39; : $memberinfo[&#39;username&#39;];
  }
 } else {
  if (param::get_cookie(&#39;_nickname&#39;)) {
   $return .= &#39;(&#39;.param::get_cookie(&#39;_nickname&#39;).&#39;)&#39;;
  } else {
   $return .= &#39;(&#39;.param::get_cookie(&#39;_username&#39;).&#39;)&#39;;
  }
 }
 return $return;
}
/**
 * 获取用户信息
 * 不传入$field返回用户所有信息,
 * 传入field,取用户$field字段信息
 */
function get_memberinfo($userid, $field=&#39;&#39;) {
 if(!is_numeric($userid)) {
  return false;
 } else {
  static $memberinfo;
  if (!isset($memberinfo[$userid])) {
   $member_db = app_base::load_model(&#39;member_model&#39;);
   $memberinfo[$userid] = $member_db->get_one(array(&#39;userid&#39;=>$userid));
  }
  if(!empty($field) && !empty($memberinfo[$userid][$field])) {
   return $memberinfo[$userid][$field];
  } else {
   return $memberinfo[$userid];
  }
 }
}
/**
 * 通过 username 值,获取用户所有信息
 * 获取用户信息
 * 不传入$field返回用户所有信息,
 * 传入field,取用户$field字段信息
 */
function get_memberinfo_buyusername($username, $field=&#39;&#39;) {
 if(empty($username)){return false;}
 static $memberinfo;
 if (!isset($memberinfo[$username])) {
  $member_db = app_base::load_model(&#39;member_model&#39;);
  $memberinfo[$username] = $member_db->get_one(array(&#39;username&#39;=>$username));
 }
 if(!empty($field) && !empty($memberinfo[$username][$field])) {
  return $memberinfo[$username][$field];
 } else {
  return $memberinfo[$username];
 }
}
/**
 * 调用关联菜单
 * @param $linkageid 联动菜单id
 * @param $id 生成联动菜单的样式id
 * @param $defaultvalue 默认值
 */
function menu_linkage($linkageid = 0, $id = &#39;linkid&#39;, $defaultvalue = 0, $defaultlabel = array()) {
 $linkageid = intval($linkageid);
 $datas = array();
 $datas = getcache($linkageid,&#39;linkage&#39;);
 $infos = $datas[&#39;data&#39;];
 if($datas[&#39;style&#39;]==&#39;1&#39;) {
  $title = $datas[&#39;title&#39;];
  $container = &#39;content&#39;.create_randomnum(100, 999).date(&#39;is&#39;);
  if(!defined(&#39;DIALOG_INIT_1&#39;)) {
   define(&#39;DIALOG_INIT_1&#39;, 1);
   $string .= &#39;<script type="text/javascript" src="&#39;.JS_PATH.&#39;dialog.js"></script>&#39;;
   //TODO $string .= &#39;<link href="&#39;.CSS_PATH.&#39;dialog.css" rel="stylesheet" type="text/css">&#39;;
  }
  if(!defined(&#39;LINKAGE_INIT_1&#39;)) {
   define(&#39;LINKAGE_INIT_1&#39;, 1);
   $string .= &#39;<script type="text/javascript" src="&#39;.JS_PATH.&#39;linkage/js/pop.js"></script>&#39;;
  }
  $var_p = $defaultvalue && (ROUTE_A==&#39;edit&#39; || ROUTE_A==&#39;account_manage_info&#39; || ROUTE_A==&#39;info_publish&#39; || ROUTE_A==&#39;orderinfo&#39;) ? 
  menu_linkage_level($defaultvalue,$linkageid,$infos) : $datas[&#39;title&#39;];
  $var_input = $defaultvalue && (ROUTE_A==&#39;edit&#39; || ROUTE_A==&#39;account_manage_info&#39; || ROUTE_A==&#39;info_publish&#39;) ? &#39;<input type="hidden" name="info[&#39;.$id.&#39;]" 
  value="&#39;.$defaultvalue.&#39;">&#39; : &#39;<input type="hidden" name="info[&#39;.$id.&#39;]" value="">&#39;;
  $string .= &#39;<p name="&#39;.$id.&#39;" value="" id="&#39;.$id.&#39;" class="ib">&#39;.$var_p.&#39;</p>&#39;.$var_input.&#39; <input type="button" name="btn_&#39;.$id.&#39;" class="button" 
  value="&#39;.L(&#39;linkage_select&#39;).&#39;" >  $string .= &#39;<script type="text/javascript">&#39;;
  $string .= &#39;var returnid_&#39;.$id.&#39;= \&#39;&#39;.$id.&#39;\&#39;;&#39;;
  $string .= &#39;var returnkeyid_&#39;.$id.&#39; = \&#39;&#39;.$linkageid.&#39;\&#39;;&#39;;
  $string .= &#39;var &#39;.$container.&#39; = new Array(&#39;;
  foreach($infos AS $k=>$v) {
   if($v[&#39;parentid&#39;] == 0) {
    $s[]=&#39;new Array(\&#39;&#39;.$v[&#39;linkageid&#39;].&#39;\&#39;,\&#39;&#39;.$v[&#39;name&#39;].&#39;\&#39;,\&#39;&#39;.$v[&#39;parentid&#39;].&#39;\&#39;)&#39;;
   } else {
    continue;
   }
  }
  $s = implode(&#39;,&#39;,$s);
  $string .=$s;
  $string .= &#39;)&#39;;
  $string .= &#39;</script>&#39;;
 } elseif($datas[&#39;style&#39;]==&#39;2&#39;) {
  if(!defined(&#39;LINKAGE_INIT_1&#39;)) {
   define(&#39;LINKAGE_INIT_1&#39;, 1);
   $string .= &#39;<script type="text/javascript" src="&#39;.JS_PATH.&#39;linkage/js/jquery.ld.js"></script>&#39;;
  }
  $default_txt = &#39;&#39;;
  if($defaultvalue) {
    $default_txt = menu_linkage_level($defaultvalue,$linkageid,$infos);
    $default_txt = &#39;["&#39;.str_replace(&#39; > &#39;,&#39;","&#39;,$default_txt).&#39;"]&#39;;
  }
  $string .= $defaultvalue && (ROUTE_A==&#39;edit&#39; || ROUTE_A==&#39;account_manage_info&#39; || ROUTE_A==&#39;info_publish&#39;) ? &#39;<input type="hidden" name="info[&#39;.$id.&#39;]" id="&#39;.$id.&#39;" value="&#39;.$defaultvalue.&#39;">&#39; : &#39;<input type="hidden" name="info[&#39;.$id.&#39;]" id="&#39;.$id.&#39;" value="">&#39;;
  for($i=1;$i<=$datas[&#39;setting&#39;][&#39;level&#39;];$i++) {
   $txt = isset($defaultlabel[$i]) ? $defaultlabel[$i] : &#39;请选择&#39;;
   $string .=&#39;<select class="pc-select-&#39;.$id.&#39;" name="&#39;.$id.&#39;-&#39;.$i.&#39;" id="&#39;.$id.&#39;-&#39;.$i.&#39;" width="100"><option value="">&#39; . $txt . &#39;</option></select> &#39;;
  }
  $string .= &#39;<script type="text/javascript">
     $(function(){
      var $ld5 = $(".pc-select-&#39;.$id.&#39;");
      $ld5.ld({ajaxOptions : {"url" : "&#39;.APP_PATH.&#39;api.php?op=get_linkage&act=ajax_select&keyid=&#39;.$linkageid.&#39;"},defaultParentId : 0,style : {"width" : 120}})
      var ld5_api = $ld5.ld("api");
      //ld5_api.selected(&#39;.$default_txt.&#39;);
      $ld5.bind("change",onchange);
      function onchange(e){
       var $target = $(e.target);
       var index = $ld5.index($target);
       $("#&#39;.$id.&#39;-&#39;.$i.&#39;").remove();
       $("#&#39;.$id.&#39;").val($ld5.eq(index).show().val());
       index ++;
       $ld5.eq(index).show();        }
     })
  </script>&#39;;
 } else {
  $title = $defaultvalue ? $infos[$defaultvalue][&#39;name&#39;] : $datas[&#39;title&#39;];
  $colObj = create_randomnum(100, 999).date(&#39;is&#39;);
  $string = &#39;&#39;;
  if(!defined(&#39;LINKAGE_INIT&#39;)) {
   define(&#39;LINKAGE_INIT&#39;, 1);
   $string .= &#39;<script type="text/javascript" src="&#39;.JS_PATH.&#39;linkage/js/mln.colselect.js"></script>&#39;;
   if(defined(&#39;IN_ADMIN&#39;)) {
    $string .= &#39;<link href="&#39;.JS_PATH.&#39;linkage/style/admin.css" rel="stylesheet" type="text/css">&#39;;
   } else {
    $string .= &#39;<link href="&#39;.JS_PATH.&#39;linkage/style/css.css" rel="stylesheet" type="text/css">&#39;;
   }
  }
  $string .= &#39;<input type="hidden" name="info[&#39;.$id.&#39;]" value="1"><p id="&#39;.$id.&#39;"></p>&#39;;
  $string .= &#39;<script type="text/javascript">&#39;;
  $string .= &#39;var colObj&#39;.$colObj.&#39; = {"Items":[&#39;;
  foreach($infos AS $k=>$v) {
   $s .= &#39;{"name":"&#39;.$v[&#39;name&#39;].&#39;","topid":"&#39;.$v[&#39;parentid&#39;].&#39;","colid":"&#39;.$k.&#39;","value":"&#39;.$k.&#39;","fun":function(){}},&#39;;
  }
  $string .= substr($s, 0, -1);
  $string .= &#39;]};&#39;;
  $string .= &#39;$("#&#39;.$id.&#39;").mlnColsel(colObj&#39;.$colObj.&#39;,{&#39;;
  $string .= &#39;title:"&#39;.$title.&#39;",&#39;;
  $string .= &#39;value:"&#39;.$defaultvalue.&#39;",&#39;;
  $string .= &#39;width:100&#39;;
  $string .= &#39;});&#39;;
  $string .= &#39;</script>&#39;;
 }
 return $string;
}
/**
 * 联动菜单层级
 */
function menu_linkage_level($linkageid,$keyid,$infos,$result=array()) {
 if(array_key_exists($linkageid,$infos)) {
  $result[]=$infos[$linkageid][&#39;name&#39;];
  return menu_linkage_level($infos[$linkageid][&#39;parentid&#39;],$keyid,$infos,$result);
 }
 krsort($result);
 return implode(&#39; > &#39;,$result);
}
/**
 * 通过catid获取显示菜单完整结构
 * @param $menuid 菜单ID
 * @param $cache_file 菜单缓存文件名称
 * @param $cache_path 缓存文件目录
 * @param $key 取得缓存值的键值名称
 * @param $parentkey 父级的ID
 * @param $linkstring 链接字符
 */
function menu_level($menuid, $cache_file, $cache_path = &#39;commons&#39;, $key = &#39;catname&#39;, $parentkey = &#39;parentid&#39;, $linkstring = &#39; > &#39;, $result=array()) {
 $menu_arr = getcache($cache_file, $cache_path);
 if (array_key_exists($menuid, $menu_arr)) {
  $result[] = $menu_arr[$menuid][$key];
  return menu_level($menu_arr[$menuid][$parentkey], $cache_file, $cache_path, $key, $parentkey, $linkstring, $result);
 }
 krsort($result);
 return implode($linkstring, $result);
}
/**
 * 通过id获取显示联动菜单
 * @param $linkageid 联动菜单ID
 * @param $keyid 菜单keyid
 * @param $space 菜单间隔符
 * @param $tyoe 1 返回间隔符链接,完整路径名称 3 返回完整路径数组,2返回当前联动菜单名称,4 直接返回ID
 * @param $result 递归使用字段1
 * @param $infos 递归使用字段2
 */
function get_linkage($linkageid, $keyid, $space = &#39;>&#39;, $type = 1, $result = array(), $infos = array()) {
 if($space==&#39;&#39; || !isset($space))$space = &#39;>&#39;;
 if(!$infos) {
  $datas = getcache($keyid,&#39;linkage&#39;);
  $infos = $datas[&#39;data&#39;];
 }
 if($type == 1 || $type == 3 || $type == 4) {
  if(array_key_exists($linkageid,$infos)) {
   $result[]= ($type == 1) ? $infos[$linkageid][&#39;name&#39;] : (($type == 4) ? $linkageid :$infos[$linkageid]);
   return get_linkage($infos[$linkageid][&#39;parentid&#39;], $keyid, $space, $type, $result, $infos);
  } else {
   if(count($result)>0) {
    krsort($result);
    if($type == 1 || $type == 4) $result = implode($space,$result);
    return $result;
   } else {
    return $result;
   }
  }
 } else {
  return $infos[$linkageid][&#39;name&#39;];
 }
}
/**
 * IE浏览器判断
 */
function is_ie() {
 $useragent = strtolower($_SERVER[&#39;HTTP_USER_AGENT&#39;]);
 if((strpos($useragent, &#39;opera&#39;) !== false) || (strpos($useragent, &#39;konqueror&#39;) !== false)) return false;
 if(strpos($useragent, &#39;msie &#39;) !== false) return true;
 return false;
}
/**
 * 文件下载
 * @param $filepath 文件路径
 * @param $filename 文件名称
 */
function file_down($filepath, $filename = &#39;&#39;) {
 if(!$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(&#39;Pragma: public&#39;);
 header(&#39;Last-Modified: &#39;.gmdate(&#39;D, d M Y H:i:s&#39;) . &#39; GMT&#39;);
 header(&#39;Cache-Control: no-store, no-cache, must-revalidate&#39;);
 header(&#39;Cache-Control: pre-check=0, post-check=0, max-age=0&#39;);
 header(&#39;Content-Transfer-Encoding: binary&#39;);
 header(&#39;Content-Encoding: none&#39;);
 header(&#39;Content-type: &#39;.$filetype);
 header(&#39;Content-Disposition: attachment; filename="&#39;.$filename.&#39;"&#39;);
 header(&#39;Content-length: &#39;.$filesize);
 readfile($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(&#39;%^(?:
     [\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&#39;, $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.&#39;-&#39;.$contentid.&#39;-&#39;.$siteid);
}
/**
 * 解析ID
 * @param $id 评论ID
 */
function id_decode($id) {
 return explode(&#39;-&#39;, $id);
}
/**
 * 对用户的密码进行加密
 * @param $password
 * @param $encrypt //传入加密串,在修改密码时做认证
 * @return array/password
 */
function password($password, $encrypt=&#39;&#39;) {
 $pwd = array();
 $pwd[&#39;encrypt&#39;] = $encrypt ? $encrypt : create_randomstr();
 $pwd[&#39;password&#39;] = md5(md5(trim($password)).$pwd[&#39;encrypt&#39;]);
 return $encrypt ? $pwd[&#39;password&#39;] : $pwd;
}
/**
 * 生成随机字符串
 * @param string $lenth 长度
 * @return string 字符串
 */
function create_randomstr($lenth = 6) {
 //openssl_random_pseudo_bytes
 $fp = @fopen(&#39;/dev/urandom&#39;,&#39;rb&#39;);
 $pr_bits = &#39;&#39;;
 if ($fp !== FALSE) {
  $pr_bits .= @fread($fp,$lenth/2);
  @fclose($fp);
 }
 return bin2hex($pr_bits);
 //return random($lenth, &#39;123456789abcdefghijklmnpqrstuvwxyzABCDEFGHIJKLMNPQRSTUVWXYZ&#39;);
}
/**
 * 生成随机数
 * @param string $lenth 长度
 * @return string 字符串
 */
function create_randomnum($min,$max) {
 //openssl_random_pseudo_bytes
 $difference = $max-$min;
 $bytesNeeded = ceil($difference/256);
 $fp = @fopen(&#39;/dev/urandom&#39;,&#39;rb&#39;);
 if ($fp !== FALSE) {
  $randomBytes = @fread($fp,$bytesNeeded);
  @fclose($fp);
 }
 $sum = 0;
 for ($a = 0; $a < $bytesNeeded; $a++){
  $sum += ord($randomBytes[$a]);
 }
 $sum = $sum % ($difference);
 return $sum + $min;
 //return random($lenth, &#39;123456789abcdefghijklmnpqrstuvwxyzABCDEFGHIJKLMNPQRSTUVWXYZ&#39;);
}
/**
 * 检查密码长度是否符合规定
 *
 * @param STRING $password
 * @return  TRUE or FALSE
 */
function is_password($password) {
 $strlen = strlen($password);
 if($strlen >= 6 && $strlen <= 20) return true;
 return false;
}
 /**
 * 检测输入中是否含有错误字符
 *
 * @param char $string 要检查的字符串名称
 * @return TRUE or FALSE
 */
function is_badword($string) {
 $badwords = array("\\",&#39;&&#39;,&#39; &#39;,"&#39;",&#39;"&#39;,&#39;/&#39;,&#39;*&#39;,&#39;,&#39;,&#39;<&#39;,&#39;>&#39;,"\r","\t","\n","#");
 foreach($badwords as $value){
  if(strpos($string, $value) !== FALSE) {
   return TRUE;
  }
 }
 return FALSE;
}
/**
 * 检查用户名是否符合规定
 *
 * @param STRING $username 要检查的用户名
 * @return  TRUE or FALSE
 */
function is_username($username) {
 $strlen = strlen($username);
 if(is_badword($username) || !preg_match("/^[a-zA-Z0-9_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]+$/", $username)){
  return false;
 } elseif ( 20 < $strlen || $strlen < 2 ) {
  return false;
 }
 return true;
}
/**
 * 检查id是否存在于数组中
 *
 * @param $id
 * @param $ids
 * @param $s
 */
function check_in($id, $ids = &#39;&#39;, $s = &#39;,&#39;) {
 if(!$ids) return false;
 $ids = explode($s, $ids);
 return is_array($id) ? array_intersect($id, $ids) : in_array($id, $ids);
}
/**
 * 对数据进行编码转换
 * @param array/string $data  数组
 * @param string $input  需要转换的编码
 * @param string $output 转换后的编码
 */
function array_iconv($data, $input = &#39;gbk&#39;, $output = &#39;utf-8&#39;) {
 if (!is_array($data)) {
  return iconv($input, $output, $data);
 } else {
  foreach ($data as $key=>$val) {
   if(is_array($val)) {
    $data[$key] = array_iconv($val, $input, $output);
   } else {
    $data[$key] = iconv($input, $output, $val);
   }
  }
  return $data;
 }
}
/**
 * 生成缩略图函数
 * @param $imgurl 图片路径
 * @param $width 缩略图宽度
 * @param $height 缩略图高度
 * @param $autocut 是否自动裁剪 默认裁剪,当高度或宽度有一个数值为0是,自动关闭
 * @param $smallpic 无图片是默认图片路径
 */
function thumb($imgurl, $width = 100, $height = 100 ,$autocut = 1, $smallpic = &#39;nopic.gif&#39;) {
 global $image;
 $upload_url = app_base::load_config(&#39;system&#39;,&#39;upload_url&#39;);
 $upload_path = app_base::load_config(&#39;system&#39;,&#39;upload_path&#39;);
 if(empty($imgurl)) return IMG_PATH.$smallpic;
 $imgurl_replace= str_replace($upload_url, &#39;&#39;, $imgurl);
 if(!extension_loaded(&#39;gd&#39;) || strpos($imgurl_replace, &#39;://&#39;)) return $imgurl;
 if(!file_exists($upload_path.$imgurl_replace)) return IMG_PATH.$smallpic;
 list($width_t, $height_t, $type, $attr) = getimagesize($upload_path.$imgurl_replace);
 if($width>=$width_t || $height>=$height_t) return $imgurl;
 $newimgurl = dirname($imgurl_replace).&#39;/thumb_&#39;.$width.&#39;_&#39;.$height.&#39;_&#39;.basename($imgurl_replace);
 if(file_exists($upload_path.$newimgurl)) return $upload_url.$newimgurl;
 if(!is_object($image)) {
  app_base::load_sys_class(&#39;image&#39;,&#39;&#39;,&#39;0&#39;);
  $image = new image(1,0);
 }
 return $image->thumb($upload_path.$imgurl_replace, $upload_path.$newimgurl, $width, $height, &#39;&#39;, $autocut) ? $upload_url.$newimgurl : $imgurl;
}
/**
 * 水印添加
 * @param $source 原图片路径
 * @param $target 生成水印图片途径,默认为空,覆盖原图
 * @param $siteid 站点id,系统需根据站点id获取水印信息
 */
function watermark($source, $target = &#39;&#39;,$siteid) {
 global $image_w;
 if(empty($source)) return $source;
 if(!extension_loaded(&#39;gd&#39;) || strpos($source, &#39;://&#39;)) return $source;
 if(!$target) $target = $source;
 if(!is_object($image_w)){
  app_base::load_sys_class(&#39;image&#39;,&#39;&#39;,&#39;0&#39;);
  $image_w = new image(0,$siteid);
 }
  $image_w->watermark($source, $target);
 return $target;
}
/**
 * 当前路径
 * 返回指定栏目路径层级
 * @param $catid 栏目id
 * @param $symbol 栏目间隔符
 */
function catpos($catid, $symbol=&#39; > &#39;){
 $category_arr = array();
 $siteids = getcache(&#39;category_content&#39;,&#39;commons&#39;);
 $siteid = $siteids[$catid];
 $category_arr = getcache(&#39;category_content_&#39;.$siteid,&#39;commons&#39;);
 if(!isset($category_arr[$catid])) return &#39;&#39;;
 $pos = &#39;&#39;;
 $siteurl = siteurl($category_arr[$catid][&#39;siteid&#39;]);
 $arrparentid = array_filter(explode(&#39;,&#39;, $category_arr[$catid][&#39;arrparentid&#39;].&#39;,&#39;.$catid));
 foreach($arrparentid as $catid) {
  $url = $category_arr[$catid][&#39;url&#39;];
 // if(strpos($url, &#39;://&#39;) === false) $url = $siteurl.$url;
  $pos .= &#39;<a href="&#39;.$url.&#39;">&#39;.$category_arr[$catid][&#39;catname&#39;].&#39;</a>&#39;.$symbol;
 }
 return $pos;
}
/**
 * 根据catid获取子栏目数据的sql语句
 * @param string $module 缓存文件名
 * @param intval $catid 栏目ID
 */
function get_sql_catid($file = &#39;category_content_1&#39;, $catid = 0, $module = &#39;commons&#39;) {
 $category = getcache($file,$module);
 $catid = intval($catid);
 if(!isset($category[$catid])) return false;
 return $category[$catid][&#39;child&#39;] ? " catid IN(".$category[$catid][&#39;arrchildid&#39;].") " : " catid=$catid ";
}
/**
 * 获取子栏目
 * @param $parentid 父级id
 * @param $type 栏目类型
 * @param $self 是否包含本身 0为不包含
 * @param $siteid 站点id
 */
function subcat($parentid = NULL, $type = NULL,$self = &#39;0&#39;, $siteid = &#39;&#39;) {
 if (empty($siteid)) $siteid = get_siteid();
 $category = getcache(&#39;category_content_&#39;.$siteid,&#39;commons&#39;);
 foreach($category as $id=>$cat) {
  if($cat[&#39;siteid&#39;] == $siteid && ($parentid === NULL || $cat[&#39;parentid&#39;] == $parentid) && ($type === NULL || $cat[&#39;type&#39;] == $type)) $subcat[$id] = $cat;
  if($self == 1 && $cat[&#39;catid&#39;] == $parentid && !$cat[&#39;child&#39;]) $subcat[$id] = $cat;
 }
 return $subcat;
}
/**
 * 获取内容地址
 * @param $catid 栏目ID
 * @param $id  文章ID
 * @param $allurl 是否以绝对路径返回
 */
function go($catid,$id, $allurl = 0) {
 static $category;
 if(empty($category)) {
  $siteids = getcache(&#39;category_content&#39;,&#39;commons&#39;);
  $siteid = $siteids[$catid];
  $category = getcache(&#39;category_content_&#39;.$siteid,&#39;commons&#39;);
 }
 $id = intval($id);
 if(!$id || !isset($category[$catid])) return &#39;&#39;;
 $modelid = $category[$catid][&#39;modelid&#39;];
 if(!$modelid) return &#39;&#39;;
 $db = app_base::load_model(&#39;content_model&#39;);
 $db->set_model($modelid);
 $r = $db->setCache()->get_one(array(&#39;id&#39;=>$id), &#39;url&#39;);
 if (!empty($allurl)) {
  if (strpos($r[&#39;url&#39;], &#39;://&#39;)===false) {
   if (strpos($category[$catid][&#39;url&#39;], &#39;://&#39;) === FALSE) {
    $site = siteinfo($category[$catid][&#39;siteid&#39;]);
    $r[&#39;url&#39;] = substr($site[&#39;domain&#39;], 0, -1).$r[&#39;url&#39;];
   } else {
    $r[&#39;url&#39;] = $category[$catid][&#39;url&#39;].$r[&#39;url&#39;];
   }
  }
 }
 return $r[&#39;url&#39;];
}
/**
 * 将附件地址转换为绝对地址
 * @param $path 附件地址
 */
function atturl($path) {
 if(strpos($path, &#39;:/&#39;)) {
  return $path;
 } else {
  $sitelist = getcache(&#39;sitelist&#39;,&#39;commons&#39;);
  $siteid = get_siteid();
  $siteurl = $sitelist[$siteid][&#39;domain&#39;];
  $domainlen = strlen($sitelist[$siteid][&#39;domain&#39;])-1;
  $path = $siteurl.$path;
  $path = substr_replace($path, &#39;/&#39;, strpos($path, &#39;//&#39;,$domainlen),2);
  return  $path;
 }
}
/**
 * 判断模块是否安装
 * @param $m 模块名称
 */
function module_exists($m = &#39;&#39;) {
 if ($m==&#39;admin&#39;) return true;
 $modules = getcache(&#39;modules&#39;, &#39;commons&#39;);
 $modules = array_keys($modules);
 return in_array($m, $modules);
}
/**
 * 生成SEO
 * @param $siteid  站点ID
 * @param $catid  栏目ID
 * @param $title  标题
 * @param $description 描述
 * @param $keyword  关键词
 */
function seo($siteid, $catid = &#39;&#39;, $title = &#39;&#39;, $description = &#39;&#39;, $keyword = &#39;&#39;) {
 if (!empty($title))$title = strip_tags($title);
 if (!empty($description)) $description = strip_tags($description);
 if (!empty($keyword)) $keyword = str_replace(&#39; &#39;, &#39;,&#39;, strip_tags($keyword));
 $sites = getcache(&#39;sitelist&#39;, &#39;commons&#39;);
 $site = $sites[$siteid];
 $cat = array();
 if (!empty($catid)) {
  $siteids = getcache(&#39;category_content&#39;,&#39;commons&#39;);
  $siteid = $siteids[$catid];
  $categorys = getcache(&#39;category_content_&#39;.$siteid,&#39;commons&#39;);
  $cat = $categorys[$catid];
  $cat[&#39;setting&#39;] = string2array($cat[&#39;setting&#39;]);
 }
 $seo[&#39;site_title&#39;] =isset($site[&#39;site_title&#39;]) && !empty($site[&#39;site_title&#39;]) ? $site[&#39;site_title&#39;] : $site[&#39;name&#39;];
 $seo[&#39;keyword&#39;] = !empty($keyword) ? $keyword : $site[&#39;keywords&#39;];
 $seo[&#39;description&#39;] = isset($description) && !empty($description) ? $description : (isset($cat[&#39;setting&#39;][&#39;meta_description&#39;]) && 
 !empty($cat[&#39;setting&#39;][&#39;meta_description&#39;]) ? $cat[&#39;setting&#39;][&#39;meta_description&#39;] : (isset($site[&#39;description&#39;]) && !empty($site[&#39;description&#39;]) 
 ? $site[&#39;description&#39;] : &#39;&#39;));
 $seo[&#39;title&#39;] = (isset($title) && !empty($title) ? $title.&#39; - &#39; : &#39;&#39;).(isset($cat[&#39;setting&#39;][&#39;meta_title&#39;]) && !empty($cat[&#39;setting&#39;][&#39;meta_title&#39;]) ?
  $cat[&#39;setting&#39;][&#39;meta_title&#39;].&#39; - &#39; : (isset($cat[&#39;catname&#39;]) && !empty($cat[&#39;catname&#39;]) ? $cat[&#39;catname&#39;].&#39; - &#39; : &#39;&#39;));
 foreach ($seo as $k=>$v) {
  $seo[$k] = str_replace(array("\n","\r"), &#39;&#39;, $v);
 }
 return $seo;
}
/**
 * 获取站点的信息
 * @param $siteid 站点ID
 */
function siteinfo($siteid) {
 static $sitelist;
 if (empty($sitelist)) $sitelist = getcache(&#39;sitelist&#39;,&#39;commons&#39;);
 return isset($sitelist[$siteid]) ? $sitelist[$siteid] : &#39;&#39;;
}
/**
 * 生成CNZZ统计代码
 */
function tjcode() {
 if(!module_exists(&#39;cnzz&#39;)) return false;
 $config = getcache(&#39;cnzz&#39;, &#39;commons&#39;);
 if (empty($config)) {
  return false;
 } else {
  return &#39;<script src=\&#39;http://pw.cnzz.com/c.php?id=&#39;.$config[&#39;siteid&#39;].&#39;&l=2\&#39; language=\&#39;JavaScript\&#39; charset=\&#39;gb2312\&#39;></script>&#39;;
 }
}
/**
 * 生成标题样式
 * @param $style 样式
 * @param $html 是否显示完整的STYLE
 */
function title_style($style, $html = 1) {
 $str = &#39;&#39;;
 if ($html) $str = &#39; style="&#39;;
 $style_arr = explode(&#39;;&#39;,$style);
 if (!empty($style_arr[0])) $str .= &#39;color:&#39;.$style_arr[0].&#39;;&#39;;
 if (!empty($style_arr[1])) $str .= &#39;font-weight:&#39;.$style_arr[1].&#39;;&#39;;
 if ($html) $str .= &#39;" &#39;;
 return $str;
}
/**
 * 获取站点域名
 * @param $siteid 站点id
 */
function siteurl($siteid) {
 static $sitelist;
 return WEB_PATH;
// if(!$siteid) return WEB_PATH;
// if(empty($sitelist)) $sitelist = getcache(&#39;sitelist&#39;,&#39;commons&#39;);
// return substr($sitelist[$siteid][&#39;domain&#39;],0,-1);
}
/**
 * 生成上传附件验证
 * @param $args 参数
 * @param $operation 操作类型(加密解密)
 */
function upload_key($args) {
 $pc_auth_key = md5(app_base::load_config(&#39;system&#39;,&#39;auth_key&#39;).$_SERVER[&#39;HTTP_USER_AGENT&#39;]);
 $authkey = md5($args.$pc_auth_key);
 return $authkey;
}
/**
 * 文本转换为图片
 * @param string $txt 图形化文本内容
 * @param int $fonttype 无外部字体时生成文字大小,取值范围1-5
 * @param int $fontsize 引入外部字体时,字体大小
 * @param string $font 字体名称 字体请放于app\libs\data\font下
 * @param string $fontcolor 字体颜色 十六进制形式 如FFFFFF,FF0000
 */
function string2img($txt, $fonttype = 5, $fontsize = 16, $font = &#39;&#39;, $fontcolor = &#39;FF0000&#39;,$transparent = &#39;1&#39;) {
 if(empty($txt)) return false;
 if(function_exists("imagepng")) {
  $txt = urlencode(sys_auth($txt));
  $txt = &#39;<img src="&#39;.APP_PATH.&#39;api.php?op=creatimg&txt=&#39;.$txt.&#39;&f &#39;.$version[&#39;pc_release&#39;];
 }
}
/**
 * 运行钩子(插件使用)
 */
function runhook($method) {
 $time_start = getmicrotime();
 $data = &#39;&#39;;
 $getpclass = FALSE;
 $hook_appid = getcache(&#39;hook&#39;,&#39;plugins&#39;);
 if(!empty($hook_appid)) {
  foreach($hook_appid as $appid => $p) {
   $pluginfilepath = CODE_PATH.&#39;plugin&#39;.DIRECTORY_SEPARATOR.$p.DIRECTORY_SEPARATOR.&#39;hook.class.php&#39;;
   $getpclass = TRUE;
   include_once $pluginfilepath;
  }
  $hook_appid = array_flip($hook_appid);
  if($getpclass) {
   $pclass = new ReflectionClass(&#39;hook&#39;);
   foreach($pclass->getMethods() as $r) {
    $legalmethods[] = $r->getName();
   }
  }
  if(in_array($method,$legalmethods)) {
   foreach (get_declared_classes() as $class){
    $refclass = new ReflectionClass($class);
    if($refclass->isSubclassOf(&#39;hook&#39;)){
     if ($_method = $refclass->getMethod($method)) {
       $classname = $refclass->getName();
      if ($_method->isPublic() && $_method->isFinal()) {
       plugin_stat($hook_appid[$classname]);
       $data .= $_method->invoke(null);
      }
     }
    }
   }
  }
  return $data;
 }
}
function getmicrotime() {
 list($usec, $sec) = explode(" ",microtime());
 return ((float)$usec + (float)$sec);
}
/**
 * 插件前台模板加载
 * Enter description here ...
 * @param unknown_type $module
 * @param unknown_type $template
 * @param unknown_type $style
 */
function p_template($plugin = &#39;content&#39;, $template = &#39;index&#39;,$style=&#39;default&#39;) {
 if(!$style) $style = &#39;default&#39;;
 $template_cache = app_base::load_sys_class(&#39;template_cache&#39;);
 $compiledtplfile = ROOT_PATH.&#39;caches&#39;.DIRECTORY_SEPARATOR.&#39;caches_template&#39;.DIRECTORY_SEPARATOR.$style.DIRECTORY_SEPARATOR.&#39;plugin&#39;.DIRECTORY_SEPARATOR.
 $plugin.DIRECTORY_SEPARATOR.$template.&#39;.php&#39;;
 if(!file_exists($compiledtplfile) || (file_exists(CODE_PATH.&#39;plugin&#39;.DIRECTORY_SEPARATOR.$plugin.DIRECTORY_SEPARATOR.&#39;templates&#39;
 .DIRECTORY_SEPARATOR.$template.&#39;.html&#39;) && filemtime(CODE_PATH.&#39;plugin&#39;.DIRECTORY_SEPARATOR.$plugin.DIRECTORY_SEPARATOR.&#39;templates&#39;.
 DIRECTORY_SEPARATOR.$template.&#39;.html&#39;) > filemtime($compiledtplfile))) {
  $template_cache->template_compile(&#39;plugin/&#39;.$plugin, $template, &#39;default&#39;);
 } elseif (!file_exists(CODE_PATH.&#39;plugin&#39;.DIRECTORY_SEPARATOR.$plugin.DIRECTORY_SEPARATOR.&#39;templates&#39;.DIRECTORY_SEPARATOR.$template.&#39;.html&#39;)) {
  showmessage(&#39;Template does not exist.&#39;.DIRECTORY_SEPARATOR.&#39;plugin&#39;.DIRECTORY_SEPARATOR.$plugin.DIRECTORY_SEPARATOR.$template.&#39;.html&#39;);
 }
 return $compiledtplfile;
}
/**
 * 读取缓存动态页面
 */
function cache_page_start() {
 $relate_url = isset($_SERVER[&#39;REQUEST_URI&#39;]) ? safe_replace($_SERVER[&#39;REQUEST_URI&#39;]) : $php_self.(isset($_SERVER[&#39;QUERY_STRING&#39;]) ? &#39;?&#39;.
 safe_replace($_SERVER[&#39;QUERY_STRING&#39;]) : $path_info);
 define(&#39;CACHE_PAGE_ID&#39;, md5($relate_url));
 $contents = getcache(CACHE_PAGE_ID, &#39;page_tmp/&#39;.substr(CACHE_PAGE_ID, 0, 2));
 if($contents && intval(substr($contents, 15, 10)) > SYS_TIME) {
  echo substr($contents, 29);
  exit;
 }
 if (!defined(&#39;HTML&#39;)) define(&#39;HTML&#39;,true);
 return true;
}
/**
 * 写入缓存动态页面
 */
function cache_page($ttl = 360, $isjs = 0) {
 if($ttl == 0 || !defined(&#39;CACHE_PAGE_ID&#39;)) return false;
 $contents = ob_get_contents();
 if($isjs) $contents = format_js($contents);
 $contents = "<!--expiretime:".(SYS_TIME + $ttl)."-->\n".$contents;
 setcache(CACHE_PAGE_ID, $contents, &#39;page_tmp/&#39;.substr(CACHE_PAGE_ID, 0, 2));
}
/**
 *
 * 获取远程内容
 * @param $url 接口url地址
 * @param $timeout 超时时间
 */
function pc_file_get_contents($url, $timeout=30) {
 $stream = stream_context_create(array(&#39;http&#39; => array(&#39;timeout&#39; => $timeout)));
 return @file_get_contents($url, 0, $stream);
}
/**
 * Function get_vid
 * 获取视频信息
 * @param int $contentid 内容ID 必须
 * @param int $catid 栏目id 取内容里面视频信息时必须
 * @param int $isspecial 是否取专题的视频信息
 */
function get_vid($contentid = 0, $catid = 0, $isspecial = 0) {
 static $categorys;
 if (!$contentid) return false;
 if (!$isspecial) {
  if (!$catid) return false;
  $contentid = intval($contentid);
  $catid = intval($catid);
  $siteid = get_siteid();
  if (!$categorys) {
   $categorys = getcache(&#39;category_content_&#39;.$siteid, &#39;commons&#39;);
  }
  $modelid = $categorys[$catid][&#39;modelid&#39;];
  $video_content = app_base::load_model(&#39;video_content_model&#39;);
  $r = $video_content->get_one(array(&#39;contentid&#39;=>$contentid, &#39;modelid&#39;=>$modelid), &#39;videoid&#39;, &#39;listorder ASC&#39;);
  $video_store =app_base::load_model(&#39;video_store_model&#39;);
  return $video_store->get_one(array(&#39;videoid&#39;=>$r[&#39;videoid&#39;]));
 } else {
  $special_content = app_base::load_model(&#39;special_content_model&#39;);
  $contentid = intval($contentid);
  $video_store =app_base::load_model(&#39;video_store_model&#39;);
  $r = $special_content->get_one(array(&#39;id&#39;=>$contentid), &#39;videoid&#39;);
  return $video_store->get_one(array(&#39;videoid&#39;=>$r[&#39;videoid&#39;]));
 }
}
/**
 * Function dataformat
 * 时间转换
 * @param $n INT时间
 */
 function dataformat($n) {
 $hours = floor($n/3600);
 $minite = floor($n%3600/60);
 $secend = floor($n%3600%60);
 $minite = $minite < 10 ? "0".$minite : $minite;
 $secend = $secend < 10 ? "0".$secend : $secend;
 if($n >= 3600){
  return $hours.":".$minite.":".$secend;
 }else{
  return $minite.":".$secend;
 }
 }
 function httpResponse($status, $msg=&#39;&#39;){
  $m = app_base::load_model(&#39;category_model&#39;);
  $CATEGORYS = $m->select(array(&#39;parentid&#39;=>0),&#39;*&#39;,&#39;&#39;,&#39;listorder&#39;);
  include CODE_PATH . &#39;libs&#39;.DIRECTORY_SEPARATOR.&#39;data&#39;.DIRECTORY_SEPARATOR.&#39;http&#39;.DIRECTORY_SEPARATOR.$status.&#39;.php&#39;;
 }
 function array_change_key_case_recursive($arr)
 {
  if(! $arr || !is_array($arr))return array();
 return array_map(function($item){
  if(is_array($item))
   $item = array_change_key_case_recursive($item);
  return $item;
 },array_change_key_case($arr));
 }
 function visitauth(){
  $vtime = time();
 $vsign = md5("cuichuande@ideadata.com.cn#$%" . $vtime);
 return "tm={$vtime}&sn={$vsign}";
 }
?>



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