Undefined variable: posts when passing parameter from controller to view - laravel

Question

I'm trying to create a search function in Laravel and its returning me with "undefined variable: posts" when I do foreach on my view.
My code:
Post Model
class Post extends Model {
protected $fillable = [
'creator',
'post_url',
'books',
'likes',
'created_at'
];
public function user() { return $this->belongsTo(User::class); }
}
Homeview:
<form action="{{ url('/search') }}" method="get">
<input type="text" class="search-text form-control form-control-lg" name="q" placeholder="Search" required>
</form>
Controller:
public function search($keyword)
{
$result = Post::where('books', 'LIKE', "'%' . $keyword . '%'")->get();
return view('/search', ['posts' => $result]);
}
Route:
Route::get('/search/{keyword}', 'SearchController#search');
Searchview:
#foreach($posts as $post)
<div class="post">{{ $post->id }}</div>
#endforeach
What am I doing wrong here?

Answer 1

This might help you out.
Homeview.blade.php
<form action="/search" method="POST">
#csrf // include your csrf token
<input type="text" class="search-text form-control form-control-lg" id="q" name="q" placeholder="Search" required>
</form>
Searchview.blade.php
<!-- or did you return a collection? -->
#if( $posts->count() > 1 )
<!-- then loop through the posts -->
#foreach( $posts as $post )
<div class="post"> {{ $post->id }} </div>
#endforeach
#else
#if( !empty($posts) )
<div class="post"> {{ $post->id }} </div>
#endif
#endif
Routes/web.php
Route::post('/search', 'PostsController#show')->name('posts.show');
PostsController
use App\Post;
public function show( Request $request )
{
$result = Post::where("books", "LIKE", "%{$request->input('q')}%")->get();
// Uncomment the following line to see if you are returning any data
// dd($result);
// Did you return any results?
return view('searchview', ['posts' => $result]);
}

Answer 2

The reason it wasn't working,
Route::get('/search/{keyword}', 'SearchController#search');
In your route file you were looking for a {keyword} that was never passed by the form. Your form action is action="{{ url('/search') }}". A get variable will not be picked up by a route and if it was you called the input 'q' anyway.
So then in your controller you were looking for the keyword being passed that is never passed in.
public function search($keyword)
Instead the correct thing to do is pass in the Request object like so
public function search(Request $request)
Then use $request->input('q') to retrieve the passed value through your form.
In your example $keyword would always have been blank.
Corrected code
Homeview:
<form action="{{ url('/search') }}" method="get">
<input type="text" class="search-text form-control form-control-lg" name="q" placeholder="Search" required>
</form>
Controller:
public function search(Request $request)
{
$result = Post::where('books', 'LIKE', "%{$request->input('q')}%")->get();
return view('/search', ['posts' => $result]);
}
Route:
Route::get('/search', 'SearchController#search');
Searchview:
#foreach($posts as $post)
<div class="post">{{ $post->id }}</div>
#endforeach

Answer 3

try:
return view('/search')->with('posts', $result);
Or even better with dinamic vars.
return view('/search')->withPosts($result);