生成zend cache ID 用于清除指定的zend cache page.

/* *  使用方法，清除对'/zhidao/?page=1&id=2'的缓存。 Zend_Loader::loadClass('Custom_Cacheid'); $cacheId=Custom_Cacheid::makeId('/zhidao/?page=1&id=2',Config::$cacheOptions);   $GLOBALS['cache']->remove($cacheId); */class Custom_Cacheid{    static $Get=NULL; static $Post=NULL; static $Session=NULL; static $Cookie=NULL; /**     * 根据提供的url，及缓存选项（本系统中是Config::$cacheOptions）返回缓存的id  * 通过设置$param来改变$_GET,$_POST,$_COOKIE,$_SESSION值，    例如：    $param = array(         'Post'=>array('id'=>1,'page'=>1)        );    表示设定$_POST参数为array('id'=>1,'page'=>1)。    注意：get参数是自动根据url获取的    注意：$url 中 ? 后的get参数不能错误比如 ?a==&page=1；str2arr只是一个简单的函数，它可能与php分析方法不同，导致不能取得正确的id     */    static public function makeId($url, $activeOptions, $param=array())    {        foreach($param as $key=>$value){   self::$$key = $value;  }  if(strpos($url,'?')!==false){   self::$Get = self::str2arr(substr($url,strpos($url,'?')));  }  $tmp = $url;        foreach (array('Get', 'Post', 'Session', 'Files', 'Cookie') as $arrayName) {               $tmp2 = self::_makePartialId(        $arrayName,         isset($activeOptions['cache_with_' . strtolower($arrayName) . '_variables'])?$activeOptions['cache_with_' . strtolower($arrayName) . '_variables']:false,         isset($activeOptions['make_id_with_' . strtolower($arrayName) . '_variables'])?$activeOptions['make_id_with_' . strtolower($arrayName) . '_variables']:true        );            if ($tmp2===false) {                return false;            }            $tmp = $tmp . $tmp2;        }        return md5($tmp);    }

    /**     * Make a partial id depending on options     *     * @param  string $arrayName Superglobal array name     * @param  bool   $bool1     If true, cache is still on even if there are some variables in the superglobal array     * @param  bool   $bool2     If true, we have to use the content of the superglobal array to make a partial id     * @return mixed|false Partial id (string) or false if the cache should have not to be used     */    private static function _makePartialId($arrayName, $bool1, $bool2)    {        switch ($arrayName) {        case 'Get':            $var = !empty(self::$Get)?self::$Get:$_GET;            break;        case 'Post':            $var = !empty(self::$Post)?self::$Post:$_POST;            break;        case 'Session':   if(!empty(self::$Session)){     $var = self::$Session;   }else{    if (isset($_SESSION)) {     $var = $_SESSION;    } else {     $var = null;    }   }            break;        case 'Cookie':   if(!empty(self::$Cookie)){     $var = self::$Cookie;   }else{    if (isset($_COOKIE)) {     $var = $_COOKIE;    } else {     $var = null;    }   }            break;        case 'Files':            $var = $_FILES;            break;        default:            return false;        }        if ($bool1) {            if ($bool2) {                    return serialize($var);            }            return '';        }        if (count($var) > 0) {   echo $arrayName.'<hr>';            return false;        }        return '';    } /*  * 把字符串转换成数组    例如传入 ?page=1&id=1 将返回array('page'=>1,'id'=>1)  */ static function str2arr($str){  $str=preg_replace("/^/?/","",$str);  $tmp=split("&",$str);  $return=array();  foreach($tmp as $t){   $string = split("=",$t);   if(count($string)==2){    $return[$string[0]] = $string[1];   }  }  return $return; }}

 

 

Config::$cacheOptions

static $cacheOptions = array(      'cache' => true,      'cache_with_get_variables' => true,  //当有get变量时也进行缓存        'cache_with_post_variables' => false,  //当有post变量时不进行缓存        'cache_with_cookie_variables' => true, //当有cookie变量时也进行缓存      'cache_with_session_variables' => true, //当有session变量时也进行缓存      'make_id_with_cookie_variables' => false,      'make_id_with_session_variables' => false,      'make_id_with_post_variables' => false,      'make_id_with_files_variables' => false,      'make_id_with_get_variables' => true      );