http://php.flashwebhost.com/sherly/ressult.php

Code:
<?php
$result = 80;

if ($result >= 85) { 
    echo "Passed: Grade A <br />";
}
elseif ($result >= 70) {
    echo "Passed: Grade B <br />";
}
elseif ($result >= 65) {
    echo "Passed: Grade C <br />";
}
else {
    echo "Failed <br />";
}