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calculator-php
Commit 81cb21f6 authored by Vadym Gidulian's avatar Vadym Gidulian
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>PHP Calculator</title>
</head>
<body>
<?php
if (!empty($_POST['op1']) && !empty($_POST['op2']) && !empty($_POST['op'])) {
$op1 = $_POST['op1'];
$op2 = $_POST['op2'];
$op = $_POST['op'];
switch ($op) {
case 'plus':
$result = $op1 + $op2;
break;
case 'minus':
$result = $op1 - $op2;
break;
case 'mul':
$result = $op1 * $op2;
break;
case 'div':
$result = $op1 / $op2;
break;
}
}
?>
<form action="index.php" method="post">
<input type="number" name="op1">
<select name="op">
<option value="plus">+</option>
<option value="minus">-</option>
<option value="mul">*</option>
<option value="div">/</option>
</select>
<input type="number" name="op2">
<button type="submit">Calculate</button>
</form>
<?php if (!empty($result)) : ?>
<p>Result: <?php echo $result; ?></p>
<?php endif; ?>
<footer style="margin-top: 25px;">
&copy; WDC 2015-<?php echo date('Y'); ?>
</footer>
</body>
</html>
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