Question

我想创建一个投放骰子的php网站，然后计算每次获得它的次数。

但是php中的变量没有正确增加，我在这里做错了什么？

这就是我现在所拥有的：

<form action="" method="get">
                <input type="submit" value="Kast en terning" name="kastTerning"/>
            </form>

            <?php
            session_start();
            $_SESSION["terning1"] = 0;
            $_SESSION["terning2"] = 0;
            $_SESSION["terning3"] = 0;
            $_SESSION["terning4"] = 0;
            $_SESSION["terning5"] = 0;
            $_SESSION["terning6"] = 0;

            function oppgave5() {
                if (isset($_GET["kastTerning"])) {
                    $roll = rand(1, 6);
                    if ($roll == 1) {
                        $_SESSION["terning1"] ++;
                    } elseif ($roll == 2) {
                        $_SESSION["terning2"] ++;
                    } elseif ($roll == 3) {
                        $_SESSION["terning3"] ++;
                    } elseif ($roll == 4) {
                        $_SESSION["terning4"] ++;
                    } elseif ($roll == 5) {
                        $_SESSION["terning5"] ++;
                    } elseif ($roll == 6) {
                        $_SESSION["terning6"] ++;
                    }

                }
                return $roll;

            }


                oppgave5();
                echo "Du kastet " .oppgave5() ."</br>";
                echo "1 kom " . $_SESSION["terning1"] . " ganger.</br>";
                echo "2 kom " . $_SESSION["terning2"] . " ganger.</br>";
                echo "3 kom " . $_SESSION["terning3"] . " ganger.</br>";
                echo "4 kom " . $_SESSION["terning4"] . " ganger.</br>";
                echo "5 kom " . $_SESSION["terning5"] . " ganger.</br>";
                echo "6 kom " . $_SESSION["terning6"] . " ganger.</br>";
                ?>

Answer 1

更改

$_SESSION["terning1"] = 0;
$_SESSION["terning2"] = 0;
$_SESSION["terning3"] = 0;
$_SESSION["terning4"] = 0;
$_SESSION["terning5"] = 0;
$_SESSION["terning6"] = 0;

到

// set them to 0 only when you start a new session.
if (!isset($_SESSION["terning1"], $_SESSION["terning2"], $_SESSION["terning3"], $_SESSION["terning4"], $_SESSION["terning5"], $_SESSION["terning6"])) {
    $_SESSION["terning1"] = $_SESSION["terning2"] = $_SESSION["terning3"] = $_SESSION["terning4"] = $_SESSION["terning5"] = $_SESSION["terning6"] = 0;
}

否则，每次重新加载页面时，都会将其设置为0。

骰子函数变量仅保持最多两个增量

1 个答案: