What does it mean to add orderby after & page = 1 in php? Is the database changing?

For a paging table, data is retrieved from the database, how to click the header for sorting for a paging table, data is retrieved from the database, and how to click the header for sorting

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For a paging table, how to sort data from the database by clicking the header?

Orderby should be a sort parameter,
You can use some table plug-ins or ajax to retrieve data and re-display the data by clicking the sort header.

It must be a parameter in the url.

Order by xx

The usage can be:

1. pass to the backend and query the database. 2. use the front-end plug-in for data processing.

Sort the result set by passing parameters