Library/Config.php
public function get($key, $namespace = null)
    {
        return null !== $namespace ? $this->offsetGet([$namespace => $key]) : $this->offsetGet($key);
    }
public function get($key, $namespace = null)
    {
        return null !== $namespace ? $this->offsetGet([$namespace => $key]) : $this->offsetGet($key);
    }
public function get ( $ key , $ namespace = null ) { return null !== $ namespace ? $ this -> offsetGet ( [ $ namespace => $ key ] ) : $ this -> offsetGet ( $ key ) ; }
Retrieves a configuration setting.

@param mixed $key
@param mixed $namespace

@return mixed|null
Retrieves a configuration setting .