Answers for "php fatal error: composer detected issues in your platform: your composer dependencies require a php version ">= 8.0.2". you are running 7.3.9. in e:\xampp\htdocs\laravel\personal_website\vendor\composer\platform_check.php on line 24"

Composer detected issues in your platform: Your Composer dependencies require a PHP version ">= 7.3.0".

composer install --ignore-platform-reqs

Composer detected issues in your platform: Your Composer dependencies require a PHP version ">= 7.3.0".

composer install --ignore-platform-reqs

or 
 #add to composer.json > config
"platform-check": false,

composer autoload-dump