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    ▪浅析十款PHP开发框架的对比       PHP开发框架近来在PHP社区中成为讨论的热点，几乎每天都在推出新的框架。面对市面上超过四十种的开发框架，你很难判断究竟哪一款最适合你，尤其是在这些框架所提供的功能不尽相同的.........

    ▪利用PHP实现短域名互转       代码如下:/**  * 短域名生成&解析类  */ class Build_URL {     private $mem;     private $base_url = 'http://xxx.com/';     public function  __construct() {         $mem_conf    = array(           .........

    ▪PHP 安全检测代码片段(分享)       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.........

代码如下:

/**
  * 短域名生成&解析类
  */
 class Build_URL {

     private $mem;
     private $base_url = 'http://xxx.com/';

     public function  __construct() {
         $mem_conf    = array(
                 array(
                         'host'    => '192.168.10.90',
                         'port'    => '11116'
                 ),
                 array(
                         'host'    => '192.168.10.90',
                         'port'    => '11117'
                 ),
         );
         $this->mem    = new Memcache();
         foreach ($mem_conf as $v) {
             $this->mem->addServer($v['host'], $v['port']);
         }
     }

     public function encode($url) {
         $url    = trim($url);
         if(!preg_match("#^[http://|https://|ftp://]#iS", $url)) {
             return false;
         }
         $md5    = md5($url);
         $aid    = $this->mem->get($md5);
         if(!$aid) {
             if(($aid = $this->mem->increment('auto_increment_id')) === false) {
                 $this->mem->set('auto_increment_id', 10000);
                 $aid = $this->mem->increment('auto_increment_id');
             }
             $this->mem->set($md5, $aid);
             $key    = $this->dec2any($aid);
             $this->mem->set($key, $url);
         } else {
             $key    = $this->dec2any($aid);
         }

         return $this->base_url.$key;
     }

     public function decode($url) {
         $key    = str_replace($this->base_url, '', trim($url));
         return $this->mem->get($key);
     }

     private function dec2any($num, $base=62, $index=false) {
         $out = '';
         if (! $base ) {
             $base = strlen($index);
         } else if (! $index ) {
             $index = substr("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ" ,0 ,$base);
         }
         $t = ($num == 0) ? 0 : floor(log10($num) / log10($base));
         for ($t; $t >= 0; $t--) {
             $a = floor($num / pow( $base, $t ));
             $out = $out . substr($index, $a, 1);
             $num = $num - ($a * pow( $base, $t ));
         }
         return $out;
     }
 }

 $app = new Build_URL();
 $url = array(
     'http://www.baidu.com',
     'http://www.google.com',
     'http://www.'
 );
 foreach ($url as $v) {
     $sort    = $app->encode($v);
     echo "sort link: ".$sort."\n";
     $original    = $app->decode($sort);
     echo "original: ".$original."\n";
 }
 ?>

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');
         }
     }