yii2定义全局工具函数(高级版本)

<?php
namespace frontend\controllers;
use Yii;
use yii\web\Controller;
class UserController extends Controller
{
	public function actionIndex()
	{
		$data=[
			'name'=>'cyg',
			'age'=>7,
		];
		p($data);
		print_r($data);
	}
}

<?php
function p($val)
{
	print_r($var);
}

require(__DIR__ . '/../helper/function.php');