复制代码 代码如下:

/**
  * html转换输出（只转义\' \" 保留Html正常运行)
  * @param $param
  * @return string
  */
 function htmlEscape($param) {
    return trim(htmlspecialchars($param, ENT_QUOTES));
 }

  /**
  * 是否数组（同时检测数组中是否存在值）
  * @param $params
  * @return boolean
  */
 function isArray($params) {
     return (!is_array($params) || !count($params)) ? false : true;
 }

 /**
  * 变量是否在数组中存在（参数容错， 字符串是否存在于数组中)
  * @param $param
  * @param $params
  * @return boolean
  */
 function inArray($param, $params) {
    return (!in_array((string)$param, (array)$params)) ? false : true;
 }

 /**
  * 通用多类型混合转义函数
  * @param $var
  * @param $strip
  * @param $isArray
  * @return mixture
  */
 function sqlEscape($var, $strip = true, $isArray = false) {
    if (is_array($var)) {
        if (!$isArray) return \" \'\' \";
        foreach ($var as $key => $value) {
            $var[$key] = trim(S::sqlEscape($value, $strip));
        }
        return $var;
    } elseif (is_numeric($var)) {
         return \" \'\" . $var . \"\' \";
    } else {
        return \" \'\" . addslashes($strip ? stripslashes($var) : $var) . \"\' \";
    }
}

     /**
      * 获取服务器变量
      * @param $keys
      * @return string
      */
     function getServer($keys) {
         $server = array();
         $array = (array) $keys;
         foreach ($array as $key) {
             $server[$key] = NULL;
             if (isset($_SERVER[$key])) {
                 $server[$key] = str_replace(array(\'<\',\'>\',\'\"\',\"\'\",\'%3C\',\'%3E\',\'%22\',\'%27\',\'%3c\',\'%3e\'), \'\', $_SERVER[$key]);
             }
         }
         return is_array($keys) ? $server : $server[$keys];
     }

     /**
      * 变量转义
      * @param $array
      */
     function slashes(&$array) {
         if (is_array($array)) {
             foreach ($array as $key => $value) {
                 if (is_array($value)) {
                     S::slashes($array[$key]);
                 } else {
                     $array[$key] = addslashes($value);
                 }
             }
         }
     }

     /**
      * 目录转换
      * @param unknown_type $dir
      * @return string
      */
     function escapeDir($dir) {
         $dir = str_replace(array(\"\'\",\'#\',\'=\',\'`\',\'$\',\'%\',\'&\',\';\'), \'\', $dir);
         return rtrim(preg_replace(\'/(\\/){2,}|(\\\\\\){1,}/\', \'/\', $dir), \'/\');
     }
     /**
      * 通用多类型转换
      * @param $mixed
      * @param $isint
      * @param $istrim
      * @return mixture
      */
     function escapeChar($mixed, $isint = false, $istrim = false) {
         if (is_array($mixed)) {
             foreach ($mixed as $key => $value) {
                 $mixed[$key] = S::escapeChar($value, $isint, $istrim);
             }
         } elseif ($isint) {
             $mixed = (int) $mixed;
         } elseif (!is_numeric($mixed) && ($istrim ? $mixed = trim($mixed) : $mixed) && $mixed) {
             $mixed = S::escapeStr($mixed);
         }
         return $mixed;
     }
     /**
      * 字符转换
      * @param $string
      * @return string
      */
     function escapeStr($string) {
         $string = str_replace(array(\"\\0\",\"%00\",\"\\r\"), \'\', $string); //modified@2010-7-5
         $string = preg_replace(array(\'/[\\\\x00-\\\\x08\\\\x0B\\\\x0C\\\\x0E-\\\\x1F]/\',\'/&(?!(#[0-9]+|[a-z]+);)/is\'), array(\'\', \'&\'), $string);
         $string = str_replace(array(\"%3C\",\'<\'), \'<\', $string);
         $string = str_replace(array(\"%3E\",\'>\'), \'>\', $string);
         $string = str_replace(array(\'\"\',\"\'\",\"\\t\",\'  \'), array(\'\"\',\'\'\',\'    \',\'  \'), $string);
         return $string;
     }
     /**
      * 变量检查
      * @param $var
      */
     function checkVar(&$var) {
         if (is_array($var)) {
             foreach ($var as $key => $value) {
                 S::checkVar($var[$key]);
             }
         } elseif (P_W != \'admincp\') {
             $var = str_replace(array(\'..\',\')\',\'<\',\'=\'), array(\'..\',\')\',\'<\',\'=\'), $var);
         } elseif (str_replace(array(\'<iframe\',\'<meta\',\'<script\'), \'\', $var) != $var) {
             global $basename;
             $basename = \'javascript:history.go(-1);\';
             adminmsg(\'word_error\');
         }
     }