尝试/捕捉不使用laravel 5.4

I know there are a lot of answers there about this question but none of them really helped me.

// update name

Route::put('/profile/update', function(Request $request){
$name = $request->input('name');

   try{
         echo DB::table('users')->where('id',Auth::id())->update(['name' => $name]);
      }
   catch(\Exception $e){
     // do task when error
      echo $e->get_message();
   }
});

I have also tried delete method but that is also not working can you please figure out what is going on. thanks.

from your code it seems like the code will never hit the catch which is nothing to do with laravel actually. your issue is a SQL one.

you're trying to update a record and updating a none-existing row will never fail in SQL. so I suggest to handle the case manually by checking the result value and replacing the try and catch with if else

BTW @Learner is 100% right about get_message() it's not in laravel as I know replace it in the future with getMessage()

Laravel mostly uses camelCase for nomenclature so use:

   catch(\Exception $e){
     // do task when error
      echo $e->getMessage();
   }

If not then just dump full $e to see it through:

    catch(\Exception $e){
       // do task when error
       dd($e);
    }

snake_case nomenclature is only used for table names in Laravel.

Change echo $e->get_message(); to echo $e->getMessage();, Exception class dose not have get_message() function.