In the Think PHP framework, routing refers to the process of mapping URL addresses to corresponding processing methods. By default, the Think PHP framework uses the method of determining routing based on parameters in the URL address, but in actual applications, we sometimes need to customize routing rules. This article will introduce how to modify routing rules in the Think PHP framework.
1. The basic concept of routing
In the Think PHP framework, each URL can be considered as a request, and this request will be processed by the Think PHP framework. The routing mechanism performs analysis to find the corresponding processing method. The routing mechanism is mainly to achieve matching between requests and processing methods.
Think PHP framework provides many routing methods, such as: based on URL parameters, based on configuration files, based on annotations, based on models, etc. These methods can realize routing customization to meet actual business needs.
2. Routing rules in the ThinkPHP framework
1. Basic routing rules
By default, the routing rules in the ThinkPHP framework are based on URL parameters, that is, routing rules and URL parameter names correspond one to one. For example, in the following URL, parameter a corresponds to the controller name in the routing rule, and parameter b corresponds to the method name in the routing rule.
http://hostName/index.php?c=a&m=b
2. Simplify routing rules
Think PHP framework also provides the function of simplifying routing rules. This method can make the URL more beautiful and easier for users to understand. For example, we can change the above URL to the following form.
http://hostName/index.php/a/b
Among them, a represents the controller name and b represents the method name.
This method can be achieved by setting the configuration file:
'URL_ROUTER_ON'???=>?true,? 'URL_ROUTE_RULES'=>array(? ???'/^a\/b$/'=>'index/a/b',? ???//?……? )
At this time, the URL address we access will be parsed into the a method under the index controller.
3. Advanced routing rules
If we need to customize routing rules more flexibly, we need to use the model-based routing function. This method requires inheriting some basic models, such as ThinkModel, AdvModel, etc., and then using the model's attributes and methods in routing rules. For example:
'URL_MODEL'??????????=>?'2', 'URL_ROUTER_ON'???=>?true,? 'URL_ROUTE_RULES'=>array(? ????':name\d'???????????????=>?'/user/detail', ????':name\d/:str'???????=>?'/user/detail?str=:2'; ????'topic/:id\d'?????????=>?'/topic?id=:1', )
Among them, :name and :id both represent the parameter names in the routing rules.
3. Methods of modifying routing rules in the ThinkPHP framework
Modifying routing rules can be achieved in a variety of ways, mainly including the following three.
1. Modify routing rules through configuration files
We can set attributes such as URL_ROUTE_RULES and URL_ROUTER_ON in the configuration file to customize routing rules. In the above example, we set the corresponding properties.
2. Customize routing rules by inheriting the Think\Controller class
We can inherit the Think\Controller class in our own controller class and override its __call() method, by Parse URL parameters to customize routing rules. For example:
class?MyController?extends?Think\Controller{?
????public?function?_call($method,?$args)?{?
????????if?($method=="a")?{
????????????$this->index($args[0]);
????????}?
????}?
????public?function?index($str){?
????????echo?"hello?".$str;
????}?
}
3. Customize routing rules by using the Think\Route class
The Think\Route class is the class used to define routing rules in the Think PHP framework. By using this class, we can Flexibly customize routing rules. For example:
use?Think\Route;?
Route::rule('hello/:name','index/user/hello');
The above code will route hello/:name to the hello method under the user module of the index controller.
Summary
In short, the routing rules in the Think PHP framework are very flexible and can be customized according to different business needs. This article introduces basic routing rules, simplified routing rules, advanced routing rules and methods of modifying routing rules. I believe that through studying this article, readers can master the basic usage of routing rules in the Think PHP framework.
The above is the detailed content of How to modify routing rules in ThinkPHP. For more information, please follow other related articles on the PHP Chinese website!
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