刀片视图中的未定义变量错误

Question

I am currently working with Laravel 5.2, trying to display images on click which I have currently stored in the Storage folder. I am trying to display these images in my blade view but every time it loads the page, it gets to an undefined variable exception.

Controller :

public function createemoji($action,$statusId)
{  
    $path = storage_path('app/public/images/'.$action.'.gif');

    /*$request=new storage();
    $request->comment=$path;
    $request->user_id=Auth::user()->id;
    $request->post_id=$statusId;
    $request->save();*/
    return redirect()->returnemoji()->with('file'->$path);

}

public function returnemoji($file)
{           
    return Image::get('$file')->response();
}

In my default view I tried using count() but everytime it loads the page, it gives me Undefined variable . How should I display it?

Answer 1

Try to change this:

->with('file'->$path);

To this:

->with('file', $path);

https://laravel.com/docs/5.3/views#passing-data-to-views

Answer 2

I think you have to try the following:

Instead of:

return redirect()->returnemoji()->with('file'->$path);

Try this:

return redirect()->returnemoji($path);

And yes, remove the quotes from this:

return Image::get('$file')->response();

Answer 3

With function takes two arguments key and value

You can use this

return redirect()->returnemoji()->with('file',$path);

Answer 4

You can try this out:

Instead of:

return redirect()->returnemoji()->with('file'->$path);

Try this:

return $this->returnemoji($path);

Hope this helps you.

Answer 5

There are a few problems.

1. Single quotes do not process variables, so instead of this

    return Image::get('$file')->response(); 

   You could do this

    return Image::get("$file")->response(); 

   or

    return Image::get("{$file}")->response(); 

   but none of this is necssary since you are just using the variable by itself without any additional formatting, so remove the quotes altogether

    return Image::get($file)->response(); 

2. The object operator -> is used in object scope to access methods and properties of an object. Your function returnemoji() is not a method of RedirectResponse class which is what the redirect() helper method returns.

3. The with() method is not appropriate here, you just need to pass a parameter to a function like this

    return redirect()->returnemoji($path); 

Optionally, I recommend following the PSR2 code style standard which includes camel cased variable names so createemoji() should be createEmoji() . Also I think you can usually omit response() when returning most data types in Laravel as it will handle that automatically for you.