Laravel 5.4 Add a difference between views - laravel

Question

I use the same view to show one post and random post
routes
Route::get('posts/{id}', 'PostsController#show')->name('posts.show');
Route::get('get-random-post', 'PostsController#getRandomPost');
methods in PostsController
public function show($id) {
$post = Post::findOrFail($id);
return view('posts.show', compact('post'));
}
public function getRandomPost() {
$post = Post::inRandomOrder()
->where('is_published', 1)->first();
return redirect()->route('posts.show', ["id" => $post->id]);
}
but now I need to add a small difference between two views. How can I do that?
UPD
I added variable $randomPost to methods in Controller
public function show($id) {
$randomPost = false;
$post = Post::findOrFail($id);
return view('posts.show', compact('post', 'randomPost'));
}
public function getRandomPost() {
$randomPost = true;
$post = Post::inRandomOrder()
->where('is_published', 1)->first();
return redirect()->route('posts.show', ["id" => $post->id]);
}
and added code below to show view
#if($randomPost)
some text
#endif
but I don't know how to pass variable from getRandomPost() to view?
UPD2
As result I used session, it works but I'm not sure about it
method
public function getRandomPost() {
$post = Post::inRandomOrder()
->where('is_published', 1)->first();
session()->flash('random_post', 'ok');
return redirect()->route('posts.show', ["id" => $post->id]);
}
view
#extends('layouts.app')
#section('content')
Home page
<h2>#{{$post->id}}</h2>
{!! nl2br(e($post->text)) !!}
<?php if(session()->has('random_post')){
echo '<div style="text-align: center">';
echo link_to_action('PostsController#getRandomPost', 'Random Post', $parameters = array(), $attributes = array());
echo '</div>';
}?>
#stop

Answer 1

You can use session flash, it lasts only on subsequent request:
// set
session()->flash('random_post', 'ok');
// check
if(session()->has('random_post')){
// is random

Answer 2

I guess the easiest way would be to call the function from the getRandomPost by passing a default variable through.
public function show($id, $randomPost = false) {
$post = Post::findOrFail($id);
return view('posts.show', compact('post', 'randomPost'));
}
public function getRandomPost() {
$post = Post::inRandomOrder()->where('is_published', 1)->first();
$this->show($post->id, true);
}