นิทานอีสป

Grade PHP

<?php
$score=;
if($score< 50){
echo 'grade 0';
}else if($score < 55){
echo 'grade 1';
}else if($score <60){
echo 'grade 1.5';
}else if($score < 65){
echo 'grade 2';
}else if($score < 70){
echo 'grade 2.5';
}else if($score < 75){
echo 'grade 3';
}else if($score < 80){
echo 'grade 3.5';
}else{
echo 'grade 4';
}
?>