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| 1 | index.php | |
| 2 | - | Всего: <?php echo (isset($_SESSION['amount']) ? $_SESSION['amount'] : 0); ?> |
| 2 | + | |
| 3 | Всего: <?php session_start(); echo (isset($_SESSION['amount']) ? $_SESSION['amount'] : 0); ?> | |
| 4 | <hr /> | |
| 5 | <button onclick="location.href='add.php?amount=15'">добавить 15</button> | |
| 6 | <button onclick="location.href='add.php?amount=50'">добавить 50</button> | |
| 7 | ================================================================ | |
| 8 | - | if (isset($_GET['amount'])) {
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| 8 | + | |
| 9 | ________________________________________________________________ | |
| 10 | <?php | |
| 11 | if (isset($_GET['amount']) && ctype_digit($_GET['amount'])) {
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| 12 | session_start(); | |
| 13 | $_SESSION['amount'] += (int) $_GET['amount']; | |
| 14 | } else {
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| 15 | die('Нужно передать значение');
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| 16 | } | |
| 17 | Header('Location: index.php');
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| 18 | ?> |
