OOP pada PHP

Sekarang kita akan membuat sebuah kalkulator sederhana dengan OOP PHP. Kita buat dulu file classhitung.php untuk script classnya.

<?

Class hitung {

var $x;

var $y;

function nilai($a, $b, $c){

$this->x = $a;

$this->y = $b;

$this->z = $c;

}

function hasil(){

if($this->z==”+”)

return $this->x + $this->y;

elseif($this->z==”-”)

return $this->x – $this->y;

elseif($this->z==”/”)

return $this->x / $this->y;

else

return $this->x * $this->y;

}

}

?>

Klo udah selesai sekarang kita buat file hitung.php untuk tampilan kalkulator sederhananya.

<form action=”<? echo $php_self ?>” method=”post”>

<table>

<tr>

<td>Nilai 1</td><td><input type=text name=a size=5></td>

</tr>

<tr>

<td>Nilai 2</td><td><input type=text name=b size=5></td>

</tr>

<tr>

<td colspan=”2″><input type=”radio” name=”opr” value=”+” />+ <input type=”radio” name=”opr” value=”-” />-

<input type=”radio” name=”opr” value=”/” />/ <input type=”radio” name=”opr” value=”*” />*</td>

</tr>

<tr>

<td colspan=”2″><input type=submit name=submit value=Hitung></td>

</tr>

</table>

</form>

<?

include (“classhitung.php”);

if($_REQUEST['submit']){

$a = $_REQUEST['a'];

$b = $_REQUEST['b'];

$c = $_REQUEST['opr'];

$nhitung = new hitung;

$nhitung->nilai($a, $b, $c);

echo “Nilai 1 = $a <br>”;

echo “Nilai 2 = $b <br><br>”;

echo “Hasil = “.$nhitung->hasil();

}

?>

Selamat mencoba…

Silahkan download filenya disini