reactjs - How to make React App and php Api on the same repository, as one project

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i have a react application which consume php api service, the php api is hosted on wampserver port 80 and react app on port 3000, so like to make the application and API on the same repository how can i do that and what is it the best structure of directories i can do

the Api is located on www folder of wampserver and i couldn't hosted API next to react App because this one is outside wampserver