Php 我能'；t商店用户'；答案在一个简单的.txt文件中？

我是php新手，所以我尝试制作一个简单的多项选择测验应用程序，每次一个问题，因此当用户单击“提交”按钮时，会转到下一个问题，因此问题位于不同的php文件中，因此我尝试使用fopen、fwrite函数将答案存储在simple answers.txt文件中，但问题是，当我试图自己回答测验问题时。。它没有创建answers.txt文件，所以我手动创建了它，但它仍然是空的，下面是第一个问题的php代码：

<?php 
if (isset($_GET['q1']) && !empty($_GET['q1'])) {
    $answer1 = $_GET['q1'];
    $heranswers = fopen("Nanswers.txt ", "a+");
    fwrite($heranswers, $answer1);
}
?>

---

这有什么不对

在if循环中添加以下代码

if (is_writable($filename)) {

    if (!$handle = fopen($filename, 'a')) {
        echo "Cannot open file ($filename)";
        die(error_get_last());
    }

    // Write $answer1 to our opened file.
    if (fwrite($handle, $answer1) === FALSE) {
        echo "Cannot write to file ($filename)";
        die(error_get_last());
    }

    echo "Success, wrote ($answer1) to file ($filename)";

    fclose($handle);
} else {
    echo "The file $filename is not writable";
}

---

至少您会发现错误

在if循环中添加以下代码

if (is_writable($filename)) {

    if (!$handle = fopen($filename, 'a')) {
        echo "Cannot open file ($filename)";
        die(error_get_last());
    }

    // Write $answer1 to our opened file.
    if (fwrite($handle, $answer1) === FALSE) {
        echo "Cannot write to file ($filename)";
        die(error_get_last());
    }

    echo "Success, wrote ($answer1) to file ($filename)";

    fclose($handle);
} else {
    echo "The file $filename is not writable";
}

---

至少您会发现错误

请确保文件权限。。它应该是可写的

<?php

$answer1 = 10;
$filename = "Nanswers.txt";

// Let's make sure the file exists and is writable first.

if (is_writable($filename)) {

    if (!$handle = fopen($filename, 'a+')) {
        echo "Cannot open file ($filename)";
        die(error_get_last());
    }

    // Write $answer1 to our opened file.
    if (fwrite($handle, $answer1) === FALSE) {
        echo "Cannot write to file ($filename)";
        die(error_get_last());
    }

    echo "Success, wrote ($answer1) to file ($filename)";

    fclose($handle);
} else {
    echo "The file $filename is not writable";
}
?>

---

确保文件权限。。它应该是可写的

<?php

$answer1 = 10;
$filename = "Nanswers.txt";

// Let's make sure the file exists and is writable first.

if (is_writable($filename)) {

    if (!$handle = fopen($filename, 'a+')) {
        echo "Cannot open file ($filename)";
        die(error_get_last());
    }

    // Write $answer1 to our opened file.
    if (fwrite($handle, $answer1) === FALSE) {
        echo "Cannot write to file ($filename)";
        die(error_get_last());
    }

    echo "Success, wrote ($answer1) to file ($filename)";

    fclose($handle);
} else {
    echo "The file $filename is not writable";
}
?>

你的文件至少打开了吗不，什么都没有发生，就像代码不存在一样。它可能看起来是中间的，但数据库实际上比操作txt文件要少。你的文件至少打开了吗不，什么都没有发生，这就像代码不存在一样。它可能看起来是中间的，但数据库实际上比处理txt文件要少。还注意到您的文件名“Nanswers.txt”中有一个空格。。它不应该有空格“Nanswers.txt”，还注意到您的文件名“Nanswers.txt”中有空格。。它不应该有空格“Nanswers.txt”