a + $this->b; break; case '-': return $this->a - $this->b; break; case '*': return $this->a * $this->b; break; case '/': return $this->a / $this->b; break; default: return "Sorry No command found"; } } function getresult($a, $b, $c) { $this->a = $a; $this->b = $b; return $this->checkopration($c); } } $cal = new calculator(); if(isset($_POST['submit'])) { $result = $cal->getresult($_POST['n1'],$_POST['n2'],$_POST['op']); } ?>

Enter 1st Number
Enter 2nd Number
Select Oprator	+ - * /