Introducing ThinkPHP empty operations and empty controller processing-ThinkPHP-php.cn

Introducing ThinkPHP empty operations and empty controller processing

藏色散人

Release： 2021-04-18 12:58:17

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1. No-operation processing
First look at the effect:

For me, I do not have a hello method in the IndexController.class.php file. If I try When accessing this method, the following information will be reported:

Note: The essence of a no-op: an object (controller) calls a method that does not exist

For developers who understand ThinkPHP From a human perspective, it is easy to see that the backend of this website uses the ThinkPHP framework. So how do we block these problems? That's what we're going to talk about today.

Solution 1, add a __call($method,$argvs) method in the controller Introducing ThinkPHP empty operations and empty controller processing

Introducing ThinkPHP empty operations and empty controller processing ##In this way, when you access the hello method again, the controller's __call($method,$args) method will be called by default.

but! When we have many controllers, do I need to write a __call($method,$args) method for each controller? Obviously unreasonable! Therefore, we need to write this method into the parent class of the controller, just through inheritance. When we go into Controller.class.php, we can find the __call() method, because TP has already done it for us. In his mind, it depends on whether we have defined a method called _empty() in the controller. . If defined, call this method Introducing ThinkPHP empty operations and empty controller processing

The location of the common controller parent class: ThinkPHP/Library/Think/Controller.class.php

Solution 2

Create a template with the same name for the name of the empty operation, and the system will automatically call the template.

2. Empty controller processing

Because there is no BeijingController.class.php file, an error is reported! !

After analyzing the source code of the TP framework, we have the following solution

Introducing ThinkPHP empty operations and empty controller processing
So, we need to define an empty controller. When we access a controller that does not exist, an error will be reported to us according to the error we specified.

Introducing ThinkPHP empty operations and empty controller processing

Okay, let’s stop talking about empty operations and empty controllers O(∩_∩)O~

Introducing ThinkPHP empty operations and empty controller processing

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