assign('__LIST__', [1, 2, 3]); $this->assign('demo_time', $this->request->time()); $this->assign('demo_name', 'king'); $this->assign('key', 'demo'); return $this->fetch(); } public function tree() { $arr = []; $arr1 = []; $arr2 = []; $arr3 = ['king'=>'best']; //$arr = array_merge($arr1, $arr2, $arr3); var_dump($arr); } public function hello() { var_dump(input()); if ($this->request->isAjax()) { var_dump($this->request); echo '
'; } return json_encode($this->request->method()); } }