How can PHP file upload functions be used to handle temporary and client-side file names?

When handling file uploads in PHP, it's important to consider both temporary file names generated by PHP and client-side file names provided by the user. To handle temporary file names, you can use the `$_FILES['file']['tmp_name']` variable provided by PHP. To handle client-side file names, you can use the `$_FILES['file']['name']` variable. You can store the client-side file name in a variable for later use, while using the temporary file name to process the uploaded file.

$tempFileName = $_FILES['file']['tmp_name'];
$clientFileName = $_FILES['file']['name'];

// Process the uploaded file using $tempFileName
// Save the client-side file name using $clientFileName