ThinkPHP controller, thinkphp_PHP tutorial

First recognized ThinkPHP controller, first recognized thinkphp. ThinkPHP controller first, thinkphp controller definition and basic operations described in this article. I hope you can have a preliminary understanding of ThinkPHP controller. ThinkPHP controller and thinkphp controller

This article focuses on the definition and basic operations of the ThinkPHP controller. I hope you can have a preliminary understanding of the ThinkPHP controller.

The most basic controller:

<?phpnamespace Home\Controller;use Think\Controller;class IndexController extends Controller {  public function index(){  }  public function hello(){    echo 'hello';  }}

The Controller name is named in upper case by using the hump method. the Controller file is located in Application/Home/Controller/IndexController. class. php.

The hello method of the IndexController controller class is the operation method. visit the following URL address:

Http: // serverName/Home/Index/hello
The output is "hello"

Front and back operations:

<?phpnamespace Home\Controller;use Think\Controller;class IndexController extends Controller {  public function _before_index(){    echo "index.before
";  }  public function index(){    echo "index
";  }  public function _after_index(){    echo "index.after
";  }}

Configure ACTION_SUFFIX to change the operation method writing mode:

Because the operation method is a controller method, you may not be able to define a method that conflicts with the system keyword. in this case, you can set the suffix of the operation method to solve the problem. for example

'Action _ SUFFIX '=> 'action', // operation method SUFFIX
Set the suffix of the operation method to Action. in this way, the operation method definition of the controller is adjusted:

<?phpnamespace Home\Controller;use Think\Controller;class IndexController extends Controller {  public function listAction(){    echo 'list';  }  public function helloAction(){    echo 'hello';  }  public function testAction(){    echo 'test';  }}

Empty controller and empty operation method:

When the system cannot find the requested operation method, it will locate the empty operation (_ empty) method for execution, we can optimize error pages and URLs.

As shown in, when accessing:

Http: // serverName/index. php/Home/City/beijing/
Because the City controller does not define beijing, shanghai, or shenzhen operation methods, the system will locate the null operation method _ empty for parsing, the parameter of the _ empty method is the operation name in the current URL. Therefore, the output result is as follows:

How did you find me?

Binding an operation to a class: (function: you can define a class for each operation method, rather than a method of the controller class)

Take URL access as an example: http: // serverName/Home/Index/index,

The original Controller file definition location is: Application/Home/Controller/IndexController. class. php

The controller class is defined as follows:

Namespace Home \ Controller; use Think \ Controller; class IndexController extends Controller {public function index () {echo 'perform Index operations on the index Controller ';}}

We can see that we actually call the index method of the Home \ Controller \ IndexController class.

Set parameters through the configuration file

'Action _ BIND_CLASS '=> True,
After setting, change the Controller file location to Application/Home/Controller/Index/index. class. php.

The controller class is defined as follows:

Namespace Home \ Controller \ Index; use Think \ Controller; class index extends Controller {public function run () {echo 'perform Index operations on the index Controller ';}}

Now, we call the run method of the Home \ Controller \ Index \ index class.
The above is all the content of this article. I hope it will help you learn php programming.

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The definition and basic operations of the ThinkPHP controller described in this article. I hope you can have a preliminary understanding of the ThinkPHP controller. Basic...