For Content-Type: application/json, experts can give some advice.

For Content-Type: applicationjson, experts can give you some advice. Requirement: set Content-Type: application/json in HTTP Header.
The code is as follows, but I don't know how to change it.

1, 2. check the header ('content-type: application/json') on the Internet, so add ?>, Oh, Mom, it's worse.

Please give me some advice on how to use this Content-Type: application/json code. Thank you!





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What are you doing?
Isn't it a single table page? Where is the json?

Back upstairs, the DingTalk enterprise number needs to be set in the HTTP Header Content-Type: application/json

My form file is saved as PHP.

For help, how can I add Content-Type: application/json in it?