public function clearFrom($namespace, $key = null)
    {
        $oldNamespace = $this->namespace;
        $this->setNamespace($namespace);
        $this->clear($key);
        $this->setNamespace($oldNamespace);
    }
public function clearFrom($namespace, $key = null)
    {
        $oldNamespace = $this->namespace;
        $this->setNamespace($namespace);
        $this->clear($key);
        $this->setNamespace($oldNamespace);
    }
public function clearFrom ( $ namespace , $ key = null ) { $ oldNamespace = $ this -> namespace ; $ this -> setNamespace ( $ namespace ) ; $ this -> clear ( $ key ) ; $ this -> setNamespace ( $ oldNamespace ) ; }
Delete all session values from specific namespace

@param  string     $namespace Session namespace
@param  mixed|null $key       Session key or array of keys
Delete all session values from specific namespace