You want to install Laravel.
You're ready to build beautiful web applications using PHP's best framework so you want to install Laravel and get going.
There is no solution.
You do not install Laravel.
Instead, you create a new project and specify Laravel as one of the project's dependencies. This allows Composer to download and install the version of Laravel you want to use as part of your project.
Laravel makes this process easy to accomplish with a single command. See Creating a Laravel Project for details on creating a new Laravel project.