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php - 如何修复输入数组并正确显示

问题描述

这个问题有点长，我编辑太多以减少我的代码，但我希望任何人都可以帮助我！

我正在使用 php 在时间表项目中进行数学测试，这将要求用户输入他的姓名，然后问他 10 个问题，例如“2 x 2 =？” 提供四个按钮来选择答案，然后在回答 10 个问题后，用户将被重定向到result.php显示结果的页面，这是我到目前为止所写的homePage.php：

<?php

session_start();

if (isset($_POST['submit']) ) {

    $_SESSION['QuestionNumber'] = 1;
    $_SESSION['CorrectAnswers'] = 0;
    $_SESSION['QuestionsAsnwered'] = 0;
    $_SESSION['QuestionsAnswered'] = 0;

    header("location: MathTest.php");

}

?>

<!DOCTYPE html>
<html>
<body>
    <h1 align="center">Math Test</h1>

    <form method="POST" action="">
        <div style="text-align: center;">
        <input type="submit" name="submit" value="Begin Test"">
        </div>
    </form>
</body>
</html>

在包含问题的 MathTest.php 中：

<?php

session_start();
//just controlling user answer no problem here
if (isset($_POST[$_SESSION['UserAnswer']])) {
    if ($_SESSION['QuestionNumber'] == 10) {
        header("location: result.php");
    }

    if ($_SESSION['UserAnswer'] == $_SESSION['CorrectAnswer']) {
        $_SESSION['QuestionNumber'] += 1;
        $_SESSION['CorrectAnswers'] += 1;
        $_SESSION['QuestionsAnswered'] += 1;
        QuestionGenerator();
    } else {
        $_SESSION['QuestionNumber'] += 1;
        $_SESSION['QuestionsAnswered'] += 1;
        QuestionGenerator();
    }
}
//I think that my problem(written down) is here
function QuestionGenerator(){
    $rnd1 = rand(1, 12);
    $rnd2 = rand(2, 12);

    $CorrectAnswer = $rnd1 * $rnd2;
    $WrongAnswer1 = $CorrectAnswer - 2;
    $WrongAnswer2 = $CorrectAnswer + 2;
    $WrongAnswer3 = $CorrectAnswer + 4;

    $_SESSION['rnd1'] = $rnd1;
    $_SESSION['rnd2'] = $rnd2;

    $_SESSION['CorrectAnswer'] = $CorrectAnswer;
    $_SESSION['WrongAnswer1'] = $WrongAnswer1;
    $_SESSION['WrongAnswer2'] = $WrongAnswer2;
    $_SESSION['WrongAnswer3'] = $WrongAnswer3;

    $_SESSION['AnswersArray'] = array($_SESSION['CorrectAnswer'], $_SESSION['WrongAnswer1'], $_SESSION['WrongAnswer2'], $_SESSION['WrongAnswer3']);
}

function EchoAnswers($array) {
    shuffle($array);    
    echo "<form method='POST' action='' ";
    foreach ($array as $_SESSION['UserAnswer']) {
        echo "<button><input style='width: 200px; height: 100px; font-size: 75px;' type='submit' name='" . $_SESSION['UserAnswer'] . "' value='" . $_SESSION['UserAnswer'] . "' ></button";
    }
    echo "</form>";
}

?>

<!DOCTYPE html>
<html>
<body>
    <?php echo "<h1 align='center' style='font-size: 75px;'>Question " . $_SESSION['QuestionNumber'] . " of 10</h1>"; ?>

    <h2 align="center" style="font-size: 60px"><?php echo $_SESSION['rnd1'] . " X " .  $_SESSION['rnd2'] . " = ?" ?></h2>
    <div align="center">
        <?php EchoAnswers($_SESSION['AnswersArray']) ?>
    </div>
</body>
</html>

问题是当我点击任何按钮时，它只会随机播放答案，但如果我按下最后一个按钮，它将完全正常工作

标签： phpformspost

解决方案

我遇到的问题是有 4 个提交按钮，每个按钮都有不同name的标签，因此会话将只存储最后一个输入按钮并使其正常工作，但对于其他按钮，它只会刷新页面而没有什么不同，因为它们不受控制php 代码，所以为了解决这个问题，我只改变了 EchoAnswers 函数，如下所示：

function EchoAnswers($array) {
    shuffle($array);    
    echo "<form method='POST' action='' ";
    foreach ($array as $_SESSION['UserAnswer']) {
        echo "<button><input style='margin: 10px; border: 3px solid black; background-color: lightblue; width: 200px; height: 100px; font-size: 75px;' type='submit' name='UserAnswer' value='" . $_SESSION['UserAnswer'] . "' ></button";
    }
    echo "</form>";
}

name标签也设置为，所以$_SESSION['UserAnswer']我将这部分更改为普通名称，我还更改了 php 代码，如下所示：

if (isset($_POST['UserAnswer'])) {
    if ($_SESSION['QuestionNumber'] == 10) {
        header("location: result.php");
    }

    if ($_SESSION['UserAnswer'] == $_SESSION['CorrectAnswer']) {
        $_SESSION['QuestionNumber'] += 1;
        $_SESSION['CorrectAnswers'] += 1;
        $_SESSION['QuestionsAnswered'] += 1;
        QuestionGenerator();
    } else {
        $_SESSION['QuestionNumber'] += 1;
        $_SESSION['QuestionsAnswered'] += 1;
        QuestionGenerator();
    }
}

我在 php 代码中更改的部分是isset($_POST['UserAnswer'])因为在名称标签中UserAnswer设置为而不是普通名称。$_SESSION['UserAnswer']

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