How can PHP be used to automate the process of adding a protective loop to trimmed music files during upload on a website?

When users upload music files to a website, it's essential to ensure that these files are trimmed and do not contain any potentially harmful code. To automate this process, we can use PHP to add a protective loop that trims the uploaded music files before saving them to the server. This loop can check for any unwanted code or characters and remove them to prevent any security risks.

// Check if a music file has been uploaded
if(isset($_FILES['music_file'])) {
    $file = $_FILES['music_file'];
    
    // Trim the music file to remove any unwanted characters
    $trimmed_file = trim($file['name']);

    // Save the trimmed music file to the server
    move_uploaded_file($file['tmp_name'], 'uploads/' . $trimmed_file);
    
    echo 'Music file uploaded successfully!';
} else {
    echo 'Please upload a music file.';
}