install-laravel-wsl.txt

$ sudo apt update && sudo apt dist-upgrade
$ sudo apt install composer php-zip php-mbstring php-xml php-pgsql
$ composer global require laravel/installer
$ export PATH="$HOME/.composer/vendor/bin:$PATH"
$ laravel new blog
$ cd blog
$ php artisan serve

bonus: postgresql

$ sudo apt install postgresql postgresql-contrib
$ sudo service postgresql start
$ sudo -u postgres createuser <username>
$ sudo -u postgres createdb <dbname>
$ sudo -u postgres psql
# alter user <username> with encrypted password '<password>';
#  grant all privileges on database <dbname> to <username> ; 
# \q