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- <!doctype html>
- <html lang="ru">
- <head>
- <meta charset="UTF-8">
- <title>Проверка купона</title>
- </head>
- <body>
- <form action="proverka.php" method="post">
- Введите купон:
- <input type="text" style="width:50%;" placeholder="88e3e18656d274a70518ecdcaf01aec5" name="kupon">
- <input type="submit" value="Проверить">
- </form>
- <br><br><br>
- <?php;
- if (!isset($_POST['kupon'])){
- } else {
- $kupon = substr($_POST['kupon'], 0, 4);
- $date = date("md");
- $dr = array("1", "2", "3", "4", "5", "6", "7", "8", "9", "0");
- $drr = array( "A", "B", "C", "D", "E", "F", "G", "H", "I", "J");
- $data = str_replace($drr, $dr, $kupon);
- $kupon2 = $data * 79 * 89 * 99 * 99 * 99;
- $kupon2 = "$kupon-$kupon2";
- if ($_POST['kupon'] == $kupon2) {
- if($data>=$date){
- echo "<h1>Действительный купон!</h1>";
- } else {
- echo "<h1>Недействительный купон!</h1>";
- };
- } else {
- echo "<h1>Недействительный купон!</h1>";
- }
- };
- ?>
- </body>
- </html>
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