include 'per_interface.php';
class student implements per
{
private $sub1;
private $sub2;
private $sub3;
function __construct($a, $b, $c)
{
$this->sub1 = $a;
$this->sub2 = $b;
$this->sub3 = $c;
}
function total()
{
$total = $this->sub1 + $this->sub2 + $this->sub3;
return $total;
}
function per()
{
$per = $this->total() / 3;
return $per;
}
function display()
{
echo "The percentage score is " . $this->per();
}
}
$stud1 = new student(12, 12, 12);
$stud1->display();