ProgrammingGo - test_20180306/profcalculate.php

<form action="pros_insert.php" method="post">
<p>Nombor 1: <input type="number" name="nombor1" required></p>
<p>Nombor 2: <input type="number" name="nombor2" required></p>
<p>Pilih Operasi:
<select name="operasi" required>
<option selected disabled>Sila Pilih</option>
<option value="+">+</option>
<option value="-">-</option>
<option value="*">x</option>
<option value="/">/</option>
<option value="%">%</option>
</select></p>
<p><input type="submit"></p>
<h1>OUTPUT: <?php
if(isset($_GET['result']))
    echo $_GET['result'];
?></h1>
</form>