Nilai Huruf

<?php $nilaihuruf = $row['nilai'];
if ( $nilaihuruf >= 85 )
{
    echo "A";
}
    elseif ( $nilaihuruf >= 75 )
{
    echo "B";
}
    elseif ( $nilaihuruf >= 65 )
{
    echo "C";
}
    elseif ( $nilaihuruf >= 55 )
{
    echo "D";
}
    else
{
    echo "E";
}
?>