config/Database.php
public function has($name)
    {
        $path = explode('.', $name);
        $key = array_shift($path);

        if ($this->checkCache($key)) {
            return $path ? $this->cache[$key]->has($path) : true;
        }

        return false;
    }
public function has($name)
    {
        $path = explode('.', $name);
        $key = array_shift($path);

        if ($this->checkCache($key)) {
            return $path ? $this->cache[$key]->has($path) : true;
        }

        return false;
    }
public function has ( $ name ) { $ path = explode ( '.' , $ name ) ; $ key = array_shift ( $ path ) ; if ( $ this -> checkCache ( $ key ) ) { return $ path ? $ this -> cache [ $ key ] -> has ( $ path ) : true ; } return false ; }
Check if the config exists

@param   string  $name

@return  boolean
Check if the config exists