Answers for "php artisan cache optiize"

laravel artisan clear cache

//Updated Dec 2020
//laravel artisan clear cache 
php artisan view:clear 
php artisan cache:clear
php artisan route:clear
php artisan config:clear

artisan clear cache

before change:
php artisan cache:clear
php artisan config:clear
php artisan route:clear
after change:
php artisan config:cache
php artisan route:cache
php artisan optimize