How to host a site made with laravel 5 on a actual server?

I have made a site using the Laravel 5 framework but i have made the site on my local server(localhost),now i want to host the site like other sites we can host on a server but when i uploaded my files on the server,it doesn't work,giving me error,i have search on Google but didn't find any perfect solution for this.I think some changes to be done in the .env file or any other file so please anyone can tell me what changes i do so that i can run the site perfectly like i do in the local server one more thing can i have to install composer and laravel on my hosting server to run the files or there is no need?

via Chebli Mohamed