Can PHP's include() function accept parameters, and if so, what is the syntax for passing parameters to an included file?

Yes, PHP's include() function can accept parameters by using the $_GET or $_POST superglobals to pass data to the included file. The syntax for passing parameters to an included file is to append the parameters to the file name in the include statement using query string format for $_GET or form data for $_POST.

// Example of passing parameters to an included file using $_GET
include('included_file.php?param1=value1&param2=value2');