您不需要任何规则.只需确保该目录的.php默认索引文件即可自动完成.

You don't need any rule for it. Just make sure that .php default index files for the directory and it'll happen automatically.

更新

我认为您的规则

^([a-zA-Z0-9_-]+)?$ $1.php

实际上应该是

^([a-zA-Z0-9_-]+)$ $1.php

，以使其与未提供文件名的请求不冲突(您希望将其定向到index.php).

so that it does not conflict with requests where the filename isn't given (which you want to direct to index.php).