Tutorial Pemrograman kakulator megunakan php

 

<?php

if(isset($_POST['hitung'])){

$bil1 =$_POST['bil1'];

$bil2 =$_POST['bil2'];

$operasi=$_POST['operasi'];

switch ($operasi) {

case 'tambah':

$hasil = $bil1+$bil2;

break;

case 'kurang':

$hasil = $bil1-$bil2;

break;

case 'kali':

$hasil = $bil1*$bil2;

break;

case 'bagi':

$hasil = $bil1/$bil2;

break;

}

}

?>

<div class="kalkulator">

<h4 class="judul">KALKULATOR SEDERHANA</h4>

<form method="post" action="./">

<input type="text" name="bil1" class="bil" placeholder="Bilangan 1" required/>

<p>

<select class="opt" name="operasi">

<option value="tambah">+</option>

<option value="kurang">-</option>

<option value="kali">x</option>

<option value="bagi">/</option>

</select>

</p>

<p>

<input type="text" name="bil2" class="bil" placeholder="Bilangan 2" required/>

</p>

<p>

<input type="submit" name="hitung" value="Hitung" class="tombol"/>

<a href="./" style="text-decoration:none;"><input type="button" value="Hapus"

class="tombol"/></a>

</form>

</p>

<?php if(isset($_POST['hitung'])){

?>

<input type="text" value="<?php echo $hasil; ?>" class="hasil"/>

<?php

}

else{

?>

<input type="text" value="0" class="hasil"/>

<?php

}a

?>