YII2框架自定义全局函数的实现方法小结

<?php
// comment out the following two lines when deployed to production
defined('YII_DEBUG') or define('YII_DEBUG', true);
defined('YII_ENV') or define('YII_ENV', 'dev');
 
require __DIR__ . '/../vendor/autoload.php';
require __DIR__ . '/../vendor/yiisoft/yii2/Yii.php';
 
$config = require __DIR__ . '/../config/web.php';
 
//自定义函数
function test() {
  echo 'test ...';
}
 
(new yii\web\Application($config))->run();

<?php
// comment out the following two lines when deployed to production
defined('YII_DEBUG') or define('YII_DEBUG', true);
defined('YII_ENV') or define('YII_ENV', 'dev');
 
require __DIR__ . '/../vendor/autoload.php';
require __DIR__ . '/../vendor/yiisoft/yii2/Yii.php';
 
//引入自定义函数
require __DIR__ . '/../common/functions.php';
 
$config = require __DIR__ . '/../config/web.php';
 
(new yii\web\Application($config))->run();

<?php
//注意这里，要跟你的目录名一致
namespace app\helpers;
 
class Tools
{
  public static function test()
  {
    echo 'test ...';
  }
}

<?php
namespace app\controllers;
 
use yii\web\Controller;
use app\helpers\tools;
 
class IndexController extends Controller
{
 
  public function actionIndex()
  {
    Tools::test();
  }
}