Which of the following are ways to upload a file in PHP?

Using an HTML form with the enctype attribute set to "multipart/form-data" and an input element of type "file"
Using the upload() function in PHP
Using the file_get_contents() function to read the file contents and process them
Using the include() function to include the file in the PHP script

In PHP, one of the ways to upload a file is by using an HTML form with the enctype attribute set to "multipart/form-data" and an input element of type "file". This allows the user to select a file to upload from their local system. This file will then be sent to the server for processing. The other options mentioned are not valid methods for file upload in PHP.

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