protected function _setKey($key, $createKey = false)
    {
        $groups = null;
        if ($this->_groupPrefix) {
            $groups = vsprintf($this->_groupPrefix, $this->groups());
        }
        $dir = $this->_config['path'] . $groups;

        if (!is_dir($dir)) {
            mkdir($dir, 0775, true);
        }

        $path = new SplFileInfo($dir . $key);

        if (!$createKey && !$path->isFile()) {
            return false;
        }
        if (empty($this->_File) ||
            $this->_File->getBasename() !== $key ||
            $this->_File->valid() === false
        ) {
            $exists = file_exists($path->getPathname());
            try {
                $this->_File = $path->openFile('c+');
            } catch (Exception $e) {
                trigger_error($e->getMessage(), E_USER_WARNING);

                return false;
            }
            unset($path);

            if (!$exists && !chmod($this->_File->getPathname(), (int)$this->_config['mask'])) {
                trigger_error(sprintf(
                    'Could not apply permission mask "%s" on cache file "%s"',
                    $this->_File->getPathname(),
                    $this->_config['mask']
                ), E_USER_WARNING);
            }
        }

        return true;
    }
protected function _setKey($key, $createKey = false)
    {
        $groups = null;
        if ($this->_groupPrefix) {
            $groups = vsprintf($this->_groupPrefix, $this->groups());
        }
        $dir = $this->_config['path'] . $groups;

        if (!is_dir($dir)) {
            mkdir($dir, 0775, true);
        }

        $path = new SplFileInfo($dir . $key);

        if (!$createKey && !$path->isFile()) {
            return false;
        }
        if (empty($this->_File) ||
            $this->_File->getBasename() !== $key ||
            $this->_File->valid() === false
        ) {
            $exists = file_exists($path->getPathname());
            try {
                $this->_File = $path->openFile('c+');
            } catch (Exception $e) {
                trigger_error($e->getMessage(), E_USER_WARNING);

                return false;
            }
            unset($path);

            if (!$exists && !chmod($this->_File->getPathname(), (int)$this->_config['mask'])) {
                trigger_error(sprintf(
                    'Could not apply permission mask "%s" on cache file "%s"',
                    $this->_File->getPathname(),
                    $this->_config['mask']
                ), E_USER_WARNING);
            }
        }

        return true;
    }
protected function _setKey ( $ key , $ createKey = false ) { $ groups = null ; if ( $ this -> _groupPrefix ) { $ groups = vsprintf ( $ this -> _groupPrefix , $ this -> groups ( ) ) ; } $ dir = $ this -> _config [ 'path' ] . $ groups ; if ( ! is_dir ( $ dir ) ) { mkdir ( $ dir , 0775 , true ) ; } $ path = new SplFileInfo ( $ dir . $ key ) ; if ( ! $ createKey && ! $ path -> isFile ( ) ) { return false ; } if ( empty ( $ this -> _File ) || $ this -> _File -> getBasename ( ) !== $ key || $ this -> _File -> valid ( ) === false ) { $ exists = file_exists ( $ path -> getPathname ( ) ) ; try { $ this -> _File = $ path -> openFile ( 'c+' ) ; } catch ( Exception $ e ) { trigger_error ( $ e -> getMessage ( ) , E_USER_WARNING ) ; return false ; } unset ( $ path ) ; if ( ! $ exists && ! chmod ( $ this -> _File -> getPathname ( ) , ( int ) $ this -> _config [ 'mask' ] ) ) { trigger_error ( sprintf ( 'Could not apply permission mask "%s" on cache file "%s"' , $ this -> _File -> getPathname ( ) , $ this -> _config [ 'mask' ] ) , E_USER_WARNING ) ; } } return true ; }
Sets the current cache key this class is managing, and creates a writable SplFileObject
for the cache file the key is referring to.

@param string $key The key
@param bool $createKey Whether the key should be created if it doesn't exists, or not
@return bool true if the cache key could be set, false otherwise
Sets the current cache key this class is managing and creates a writable SplFileObject for the cache file the key is referring to .