PHP

how can set defult value for yield in laravel

@yield('sidebar', 'Default Content');

@yield laravel

< some html or other script >

@yield('needed_section_name')

< more html or other script >

@yield extends laravel

@extends('layout.file_name')
... code as neeeded

@section('needed_section_name')
< some cool code here >
@stop

...
more code as needed