PHP粘贴表单的最佳实践是什么？

Question

What is the best or prevailing practice for implementing sticky forms with PHP? Should submitted field data be loaded into the field values from cookies, session variables, or just directly from $_POST?

Answer 1

Use whatever you need for your application.

If you need to use the data from the current request, pull it out of $_POST. If you need to hang onto it for multiple requests, use $_SESSION. If it needs to be accessible both client-side and server-side and you don't have a better way of doing it, use $_COOKIE (but be wary of size constraints with cookies!).