laravel issue while uploading it to shared hosting

I am trying to upload my laravel app to a shared hosting server i am facing issue making change in index.php file exist on my htdocs folder.

case 1)

when I am using this code in index.php

this gives error showing it cant access to up folder correctly

case 2)

When using this

getting below error

my folder looks as below

Please tell me what should be content of my index.php Thanks in advance....

via Chebli Mohamed