{
$this->firstName = $fname;
$this->lastName = $lname;
$this->phone = $phone;
$this->score = $score;
}
function calculate()
{
switch (intval($this->score / 15)) {
case 3:
return 'B';
case 4:
return 'A';
case 5:
return 'E';
case 6:
return 'O';
default:
return intval($this->score / 10) === 4 ? 'B' : 'D';
}
}
}
$firstName = fgets(STDIN);
$lastName = fgets(STDIN);
$phone = intval(fgets(STDIN));
$score = intval(fgets(STDIN));
$stu;
settype($stu, "Student");
$stu = new Grade($firstName, $lastName, $phone, $score);
$stu->display();
print "\nGrade: " . $stu->calculate();
