Php 将脱机数据从HTML表单存储到CSV

我有一个简单的HTML表单，我想让它在线和离线工作。我试图将数据发布到CSV文件中，但它似乎对我不起作用

这是我的HTML代码：

<form>
  <label>Insert your name</label>
  <input type="text" name="txtName" />
  &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp
  <input type="radio" name="choose" value="I agree with the terms and condtions">I agree with the terms and condtions
  <input type="radio" name="choose1" value="I disagree with the terms and condtions">I disagree with the terms and condtions
  <input type="submit" name="formSubmit" value="Submit" onclick="check()">
  </p>
</form>

if($_POST['formSubmit'] == "Submit")
{
    $errorMessage = "";
    if(empty($_POST['txtName']))
    {
        $errorMessage .= "<li>Doh, You forgot to enter your name!</li>";
    }
    if(empty($_POST['choose']))
    {
        $errorMessage .= "<li>You must agree to the terms and conditions</li>";
    }
    if(empty($_POST['choose1'])
    {
        $errorMessage = "<li>You must agree to the terms and conditions</li>";
    }
    $varName = $_POST['txtName'];
    $varChoose = $_POST['choose'];
    $varChoose1= $_POST['choose1'];
    $fs = fopen("stelios.csv","a");
    fwrite($fs,$varName . ", " . $varChoose . "," . $varChoose1 . "\n");
    fclose($fs);
    header("Location: Test.html");
    exit;
}

插入您的姓名
   
我同意这些条款和条件
我不同意这些条款和条件

和我的php:

<form>
  <label>Insert your name</label>
  <input type="text" name="txtName" />
  &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp
  <input type="radio" name="choose" value="I agree with the terms and condtions">I agree with the terms and condtions
  <input type="radio" name="choose1" value="I disagree with the terms and condtions">I disagree with the terms and condtions
  <input type="submit" name="formSubmit" value="Submit" onclick="check()">
  </p>
</form>

if($_POST['formSubmit'] == "Submit")
{
    $errorMessage = "";
    if(empty($_POST['txtName']))
    {
        $errorMessage .= "<li>Doh, You forgot to enter your name!</li>";
    }
    if(empty($_POST['choose']))
    {
        $errorMessage .= "<li>You must agree to the terms and conditions</li>";
    }
    if(empty($_POST['choose1'])
    {
        $errorMessage = "<li>You must agree to the terms and conditions</li>";
    }
    $varName = $_POST['txtName'];
    $varChoose = $_POST['choose'];
    $varChoose1= $_POST['choose1'];
    $fs = fopen("stelios.csv","a");
    fwrite($fs,$varName . ", " . $varChoose . "," . $varChoose1 . "\n");
    fclose($fs);
    header("Location: Test.html");
    exit;
}

if（$\u POST['formSubmit']==“Submit”）
{
$errorMessage=“”；
if（空（$_POST['txtName']））
{
$errorMessage.=“
Doh，你忘了输入你的名字！
”；
}
if（空（$_POST['choose']））
{
$errorMessage.=“
您必须同意条款和条件”
”；
}
if（空（$\u POST['choose1']））
{
$errorMessage=“
您必须同意条款和条件”
；
}
$varName=$_POST['txtName']；
$varChoose=$_POST['choose']；
$varChoose1=$\u POST['choose1']；
$fs=fopen（“stelios.csv”，“a”）；
fwrite（$fs，$varName.”，“$varChoose.”，“$varChoose1.”\n”）；
现金流量表（fs）；
标题（“位置：Test.html”）；
出口
}

---

另外，PHP是离线存储的好方法吗？我在考虑文件系统，但它只在IE上兼容。谢谢

PHP是一种服务器端编程语言。如果用户离线，服务器端就不存在。那么有没有办法将mt数据离线存储在CSV文件中？谢谢，因为JavaScript不能写入文件系统。你可以我会改用HTML5本地存储。但那只是一个键值存储，不是csv，所以用户无法打开它。Cookie呢？我知道它的局限性，但我想知道它是否可能是一个临时解决方案文件系统api可能可以使用。我想这些文件也不能“正常方式”访问。