<?php
$score=98; if($score<50) {echo'grade 0';} else if($score<56) {echo 'grade1';} else if($score<60) {echo 'grade1.5';} else if($score<66) {echo 'grade2';} else if($score<70) {echo 'grade2.5';} else if($score<76) {echo 'grade3';} else if($score<80) {echo 'grade3.5';} else if($score<100) {echo 'grade4';}
?>
</body>
