Routes.php Usage Example Analysis of codeigniter configuration, codeigniterroutes_php tutorial

Routes.php Usage Example Analysis of codeigniter configuration, codeigniterroutes

In this paper, the routes.php usage of codeigniter configuration is analyzed. Share to everyone for your reference, as follows:

An array named $route is defined in application/config/routes.php to set the default route and 404 pages and to set some matching methods.

The default configuration is as follows:

$route [' default_controller '] = "welcome"; $route [' 404_override '] = ';

DEFAULT_CONTROLLER Specifies the default controller name, 404_override specifies the controller name that is called when 404 occurs. Sometimes parsing is not successful, or is always on the default page, we can call $this->router to print the currently resolved controller and acion name. For example, you can print the following in My_controller:

Var_dump ($this->router->fetch_directory ()), Var_dump ($this->router->fetch_class ()), Var_dump ($this- >router->fetch_method ());

Determine which controller is resolved under, and then look at the configuration of the URL, the server configuration, and the ability to debug in router.php and uri.php.

$route arrays can also be set by wildcard characters (: num,: Any) and regular rules, here are some simple examples:

1. Resolve the http://pc.local/admin/detail_1.htm request to http://pc.local/admin/detail.htm?user_id=1 processing.
CodeIgniter does not support rewrite rules that contain query strings, and this rule should look like this:
Copy the code as follows: $route [' Admin/detail_ (: num) '] = ' admin/detail?user_id=$1 ';
But actually does not take effect, the program matches to admin/detail?user_id=1 after the "/" separates, the index is 0 for the controller name, the index is 1 for the method name, namely will the above detail?user_id=1 assigns the value to the method name, the result can imagine 404. After figuring out the separation principle, you can add a slash behind the detail to ensure that the class name and method name are correct, such as:
Copy the code as follows: $route [' Admin/detail_ (: num) '] = ' admin/detail/?user_id=$1 ';
However, there is a parameter acquisition problem, the third parameter will be passed to the method, if you need to use $_get or $this->input->get get also need to handle the parameters, such as:
Copy the Code code as follows: Parse_str (LTrim ($query _string, '? '), $_get);
2. The URL format rewrite rules for PATH_INFO are still relatively supported. To implement HTTP://PC.LOCAL/ADMIN/1 this format:
Copy the code as follows: $route [' admin/(: num) '] = ' admin/detail/$1 ';
The acquisition of parameters can only be obtained by means of a paragraph.

Note: Routes will run in the order they are defined. High-level routing always takes precedence over lower-layer routes.

Finally, the routes that can be set using CI are recommended to be set using CI, and are not dependent on the server configuration.

For more information on CodeIgniter framework related content readers can view this site topic: "CodeIgniter Introductory Tutorial"

It is hoped that this article is helpful to the PHP program design based on CodeIgniter framework.

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