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HomeBackend DevelopmentPHP Tutorialthinkphp引入一个公共类,如何在其他方法里面不需要再实例化调用

thinkphp引入一个公共类,如何在其他方法里面不需要再实例化调用

<?phpnamespace Index\Controller;use Think\Controller;use Com\Wechat;class WuyeController extends CheckController {   protected function _initialize(){ 		$token = 'weixin'; //微信后台填写的TOKEN 		$wechat = new Wechat($token); 	} 	public function index(){		 $weObj->text("hello, I'm wechat")->reply();		 //在这里不能调用上面实例化的类		 //如何操作才可以使用	 }	    public function test(){		 $weObj->text("hello, I'm wechat")->reply();		 //在这里不能调用上面实例化的类		 //如何操作才可以使用    }}





回复讨论(解决方案)

这就是个类  创建一个public 的变量....

怎么创建呢,我都试过好像不能继承

class WuyeController extends CheckController {   protected $wechat;   protected function _initialize(){         $token = 'weixin'; //微信后台填写的TOKEN         $this->wechat = new Wechat($token);     }     public function index(){         $this->weObj->text("hello, I'm wechat")->reply();     }          public function test(){         $this->weObj->text("hello, I'm wechat")->reply();    }}

谢谢回复,但是还是不行,提示Call to a member function text() on a non-object

那就是没有实例化成功

我用的类库是这个

https://github.com/dodgepudding/wechat-php-sdk

你的类库文件放在哪里,需要引入文件再试试,import  or vendor。

类库是正确的,我在_initialize是可以正确引用的,但是放在其他方法里就不能引用

把初始化方法的protected  改为  public,然后按照三楼写的就对了

在 wechat-php-sdk-master 项目中没有找到 CheckController 类定义
也没找到 _initialize 方法的定义

你能确认 _initialize 在类实例化时就执行了吗?

token 作为身份认证,通常是动态发放的,你写死了可以吗?

_initialize 里可以直接用该类了
token 只是该类的一个参数,不加都可以,但是为什么在tp里面不能用呢

我看到了一个wechat和一个weobj...

<?phpnamespace Index\Controller;use Think\Controller;use Com\Wechat; class WuyeController extends CheckController {      protected $weObj;   protected function _initialize(){         $token = 'weixin'; //微信后台填写的TOKEN         $this->weObj = new Wechat($token);     }     public function index(){         $this->weObj->text("hello, I'm wechat")->reply();         //在这里不能调用上面实例化的类         //如何操作才可以使用     }          public function test(){         $this->weObj->text("hello, I'm wechat")->reply();         //在这里不能调用上面实例化的类         //如何操作才可以使用     } }

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