Proposal and guidance: Build a calendar like google in PHP

Suggestions and guidance: PHP creates a google-like calendar. if you use PHP to create a google-like calendar, data can be displayed in the daily space in the calendar (such as an existing work plan) you can also modify or insert new plan data in a blank date ). I cannot find a clue. do you have any good suggestions? Thank you for your suggestions and guidance. PHP creates a calendar like google.
If you use PHP to create a calendar similar to google, data can be displayed in spaces within the calendar every day (such as existing work plans) you can also modify or insert new plan data in a blank date ). I cannot find a clue. do you have any good suggestions? Thank you.
Php calendar javascript jQuery Ajax
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The calendar control works in a browser and has no direct relationship with php.
You can find a lot of such things on the Internet.
Of course, js skills are required to modify the functions.
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For calendar records such as OA, you can refer

It is generally because the client displays, edits, and submits it to the server for storage. it is better to use ajax to submit the client.