Is this sentence wrong?

Isn’t the POST data obviously a string? Why is it called an array?

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Isn’t the POST data obviously a string? Why is it called an array?

If

POST data is passed in the two formats of x-www-form-urlencoded or multipart/form-data, its content can be parsed into an array. These two formats are currently the most common POST parameter formats, and their specifications Understand how parameters are encapsulated into POST data and how to parse them on the server side.

That’s right that the POST data is a string. More precisely, the value is a string. This picture explains it well