php - How to put a parameter in a Laravel controller method not obligatory? -

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I do not know how to make the parameters mandatory in the Laravel controller method, because I found a route (I I am saying that it is not mandatory): 

  Route: Received ('/ account / student / create / {student_id?}', Array ('as' = & Gt; 'Account-Student-Building', 'Usage' = & gt; Student-Controller @ Get Crelet));

I got it in my controller: 

  getCreate ($ student_id) {...}

if If no parameter fills in the path then I have received the warning message: 

  Logic 1 for StudentController 1: getCreate ()

Thanks for helping !

Gene

Add a default value to declare your controller method: < / P> 

  getCreate {$ student_id = null} {...}

Such a method when the method is called without a value, $ student_id will be set to clear.


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