lavarel 5.5升级到lavarel 5.6

一、修改composer.json文件夹前提php最低7.13

图中 "php": ">=7.1.3",
"fideloper/proxy": "~4.0",
"laravel/framework": "5.6.*",
"phpunit/phpunit": "~7.0",
修改完成后
二、清空缓存

php artisan view:clear
php artisan route:clear

三、composer 更新

composer update