Untitled

<body>

<form class="forms" action="" method="post">
<div>
    <input class="num " type="text" name="get1" placeholder= "Eerste getal">
    <input class="num" type="text" name="get2" placeholder= "Tweede getal">
</div>
<div>
    <input class="row1" type="submit" name="operator" value="x">
    <input class="row1" type="submit" name="operator" value="+">
    <input class="row1" type="submit" name="operator" value="-">
</div>
<div>
    <input class="row2" type="submit" name="operator" value="/">
    <input class="row2" type="submit" name="operator" value="a^2">
    <input class="row2" type="submit" name="operator" value="√a">
</div>
<div>
    <input class="row3" type="submit" name="operator" value="a^b">
    <input class="row3" type="submit" name="operator" value="tafel">
    <input class="row3" type="reset" name="clear" value="clear">
</div>
</form>

<?php

 $num1 = $_POST['get1'];
 $num2 = $_POST['get2'];
 $operator = $_POST['operator'];
 $result = "";


 if (is_numeric($num1) && is_numeric($num2)) {
     switch($operator) {
         case "x": $result = $num1 * $num2; echo $result; break;
         case "-": $result = $num1 - $num2; echo $result; break;
         case "+": $result = $num1 + $num2; echo $result; break;

     }
 }


?>