Follow along with the video below to see how to install our site as a web app on your home screen.
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Примерно P=2*a+2*b за периметър на правоъгълникfuraj1 каза:по- подробно
<?php
$cena_4km2 = 10;
if($_POST)
{
$mivka = (int)$_POST['mivka'];
$pari = $mivka * $cena_4km2;
echo 'Цена: ' . $pari . 'лв.';
}
?>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
</head>
<body>
<form action="index.php" method="POST">
Мивка: <input type="text" name="mivka" />
<input type="submit" value="Изчисли" />
</form>
</body>
</html>