php - Judgment problem in middleware

Question

I pass a parameter of age=22 through the get method, and $request->age can get the corresponding value. However, when executing the 13th line of code in the figure below, why does the if judgment pass and 14 lines of content are directly output?

Answer 1

你的访问的url不对的，
Route::get('/ages=test/{age}',['middleware'=>'test',function($age){
    return "年龄符合标准";
}]);这个路由 传参的时候，age只需要传数字，不要age=22 这个就是字符串了，所以dd($request->age)
出来是“age=22”,数字比较的时候，字符串转换为0 ，所以一直进入if语句

Answer 2

Try writing it like this

if(($request->age) <18)

Answer 3

The very weird url
should be: www.laraveltest.com:8888/agetest/22
or: www.laraveltest.com:8888/agetest?age=22

The url you visited is wrong

Answer 4

I don’t understand the usage of passing parameters at all. Are you new to laravel? Use the wrong one. The {age} you wrote is just a placeholder-like thing. The age=22 followed by your route is equivalent to the parameter age=22. You can just follow 22 without adding age. Thank you