How can the issue of "No such file or directory" be resolved in a PHP upload script?

The issue of "No such file or directory" in a PHP upload script can be resolved by checking if the file exists before attempting to upload it. This can be done using the `file_exists()` function in PHP. By verifying the existence of the file before uploading, you can prevent the error from occurring.

if(file_exists($_FILES['file']['tmp_name'])) {
    move_uploaded_file($_FILES['file']['tmp_name'], 'uploads/' . $_FILES['file']['name']);
    echo "File uploaded successfully!";
} else {
    echo "File does not exist.";
}