First install Composer package manager on on your project:
php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');" php -r "if (hash_file('sha384', 'composer-setup.php') === '756890a4488ce9024fc62c56153228907f1545c228516cbf63f885e036d37e9a59d27d63f46af1d4d07ee0f76181c7d3') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;" php composer-setup.php php -r "unlink('composer-setup.php');"
Now install Composer global:
php composer.phar global require laravel/installer
Install Composer to your project (change site-name to your project name):
php composer.phar create-project --prefer-dist laravel/laravel site-name "8.*"