我正在执行以下操作.

例如我有两个php版本，PHP 5.6和PHP 7.3

ex. I have two php version , PHP 5.6 and PHP 7.3

我有潮湿的环境，所以我做了如下操作

I have wamp environment so I have done as below

所以我已经将D:\ wamp \ bin \ php \ php7.3.6 \ php.exe复制到D:\ wamp \ bin \ php \ php7.3.6 \ php7.exe

so I have copied D:\wamp\bin\php\php7.3.6\php.exe to D:\wamp\bin\php\php7.3.6\php7.exe

我已经将D:\ wamp \ bin \ php \ php5.6 \ php.exe复制到D:\ wamp \ bin \ php \ php5.6 \ php56.exe

and I have copied D:\wamp\bin\php\php5.6\php.exe to D:\wamp\bin\php\php5.6\php56.exe

然后我将它们都添加到如下所示的环境变量路径中.

Then I have added both to environment variable path like below.

现在您需要重新打开cmd，然后可以使用以下命令

now you need reopen the cmd and you can use command something like below

php56 -v
php7 -v

您还可以运行命令 refreshenv 以在打开的cmd中重新加载环境变量.

You can also run command refreshenv to reload environment variables in opened cmd.

如果要更改默认的php版本，则可以按以下方式移动路径.

If you want change default php version, you can move paths as below.

ex，如果您希望将php 7.0.23设置为默认值而不是php 7.3.6

ex if you want php 7.0.23 as default instead of php 7.3.6

例如，请参见屏幕截图

see screenshot for example

我希望这会有所帮助