What potential issues can arise when uploading files from a Mac to a server using PHP?

One potential issue that can arise when uploading files from a Mac to a server using PHP is related to the file name encoding. Mac OS uses a different character encoding system compared to other operating systems, which can result in file names containing special characters that may not be properly handled by PHP. To solve this issue, you can normalize the file name using PHP's `iconv` function to convert the file name to a standard encoding before uploading it to the server.

// Normalize file name encoding before uploading
$normalizedFileName = iconv("UTF-8", "ASCII//TRANSLIT", $fileName);
move_uploaded_file($_FILES["file"]["tmp_name"], "/path/to/uploaded/files/" . $normalizedFileName);