php版本升級切換
1.下載對應不帶 nts 的php版本（http://windows.php.net/download/），然后解壓放到\laragon\bin\php目錄下
2.記得改環境變量下php的path配置
3.laragon操作：菜單->PHP->版本->選擇對應的php版本
4.需要重新配置下xdebug
https://www.cnblogs.com/cxscode/p/8933209.html
php.ini最后加
[xdebug] zend_extension="D:\laragon\bin\php\php-7.1.14-Win32-VC14-x64\ext\php_xdebug.dll" xdebug.remote_enable=true xdebug.remote_host=127.0.0.1 xdebug.remote_port=9000 xdebug.remote_handler=dbgp xdebug.idekey="PHPSTORM"
下載安裝對應版本xdebug：php_xdebug.dll
https://xdebug.org/download.php
放到對應php的ext文件夾下即可
nginx，mysql，apache同理
mysql需要初始化數據
How to add old version of MySQL for your case: (http://ftp.iij.ad.jp/pub/db/mysql/Downloads/MySQL-5.1/mysql-noinstall-5.1.73-win32.zip) 1、Backup your databases using mysqldump 2、Rename current data dir to data-backup 3、Copy your data dir in bin/mysql/mysql-noinstall-5.1.73-win32 to the former data dir place 4、Start Laragon and restore former databases from the dump file 將laragon/data/mysql/mysql
文件夾備份， 將新mysql 壓縮包中的data數據拷貝到laragon/data/mysql/mysql，然后重啟mysql就可以實現切換