如何在CakePHP 2.0的控制器中导入类? [英] How to import a class in a controller of CakePHP 2.0?
问题描述
我正在使用CakePHP。我创建了一个外部类,它既不是模型也不是控制器。该类的结构如下:
I am using CakePHP. I created an external class which is not a model nor a controller. The structure of the class looks like this
class UploadImage{
function sayHello(){
return "hahaha";
}
}
我将该类保存在App-> Lib目录中,并将其命名为UploadImage.php
I saved the class in the App->Lib directory and named it as UploadImage.php
我想在控制器中调用方法 sayHello()
:
I wanted to call the method sayHello()
in my controller which is:
class ContentsController extends AppController {
public $helpers = array('Html', 'Form');
public function index() {
$test = App::uses('UploadImage','Lib');
debug($test->sayHello());
}
}
现在,当我运行以上页面时,出现以下错误:
Now when I run the above page, I get the following error:
错误:在非对象上调用成员函数sayHello()
Error: Call to a member function sayHello() on a non-object
推荐答案
App :: uses()是您放置在文件开头的语句
App::uses() is a statement you place at the beginning of the file
必须使用php5编程-这意味着您必须使用 new
!
you still have to program in php5 - meaning that you have to use new
!
App::uses('UploadImage','Lib');
class ContentsController extends AppController {}
并在您的方法中:
$test = new UploadImage();
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