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I am going crazy looking for a solution to this. I need to do a very simple thing - pass variables to the custom 404 page layout. Laravel lets you easily create a custom view for your http errors by creating a file like /resources/views/errors/404.blade.php but why doesn't it easily let you pass variables to it?

I tried overwriting app/Exceptions/Handler.php render method:

public function render($request, Exception $e) { if($this->isHttpException($e)){ switch ($e->getStatusCode()) { case '404': parent::render($request, $e)->flash(); $categories = Category::hierarchy(); return View::make('errors.404')->with(['categories' => $categories]); break; default: return $this->renderHttpException($e); break; } } return parent::render($request, $e); }

But for whatever reason this doesn't work and I cannot access the categories variable in my master layout. I'm working on a site that displays header on error pages but if I can't pass variables to the error view then my header cannot be created.

Undefined variable: categories

Anyone has an idea of what could be going wrong? Is it just impossible to do this? I have read you can pass the exception in and get a message from it but what's the point of that? I don't want to have to duplicate the entire layout and rewrite all variables.

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5 Answers 5

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1

i was creating custom error layout(views/error/404.blade.php), (had to pass variable to check if user was logged in or not). you can use something like this

@include('layouts.article', ['mainTitle' => "404, page not found", 'mainContent' => "sorry, but the requested page does not exist :("])

or like this

<?php $data=[ 'mainTitle' => "404, page not found", 'mainContent' => "sorry, but the requested page does not exist :(" ] ?> @include('layouts.article', $data)

reference: Laravel Blade passing variable with string through @include causes error

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0

You're looking for a View Composer: https://laravel.com/docs/8.x/views#view-composers

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Add 

public function boot() { view()->composer('my.view', function($view) { $view->with('myVariable', 'whatever you want'); }); }

to the AppServiceProvider.php

This will pass whatever you want as a $myVariable to the view.blade.php in my folder. There might be typos.

More info: https://laracasts.com/series/laravel-5-fundamentals/episodes/25 (code at 9:32)

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This will work only for regular views, not for custom error pages.
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There some breaking change in 5.4, you should use :: as delimeter for error views, for example: 

View::composer('errors::*', function($view){ $view->with('varName', 'value'); })
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But this does not work when rendering views manually through view('404'), so you should use this: View::composer(['errors::*', 'errors.*'], function ($view) {
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This trick working for me.

In your controller method:

abort(404,json_encode($categories));

In your 404.blade.php:

@php $categories = json_decode($exception->getMessage()) @endphp @foreach($categories as $category)...
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