php - laravel $title is undefined Make the variable optional in the blade template. Replace {{ $title }} with {{ $title ?? '' }}

Question

$title is undefined Make the variable optional in the blade template. Replace {{ $title }} with {{ $title ?? '' }}

index.blade.php is working

@extends('layouts.app')

@section('content')

  {{ $title }}
  
@endsection

but the about and service not working with the same code . in my PageController.php

    public function index(){
        $title = 'welcome hiii';
        return view('pages.index')->with('title', $title);
    }

    public function about(){
        $title = 'welcome hiiissssssss';
        return view('pages.about')->with('title', $title);
    }

    public function services(){
        $data = array(
            'title' => 'services'
        );
        return view('pages.services')->with($data);
    }

Answer 1

Title will only be a variable if you flash the data to the session like making a redirect.

Instead you can use

return view('pages.services', compact('title'));

Or

return view('pages.services', ['title' => '...']);