Question

如何在表单的POST后重新显示我的非常简单的视图的html项目？

我在下面列出html控件，然后当用户选择时 '上传'提交按钮，文件上传（成功）但全部先前布局的视图元素消失了。再次，上传该文件工作正常。这就是我显示的html控件当表单上传和浏览器窗口时，index.php上的消失是空白的。

如何在表单POST后获取非常简单的视图？

这是index.php：

<body>
<img src="/theWebsite/images/banner2.jpg" /img>
<br />

<input type="button" value="Play" onclick="showAnAlert(){}" />
     // other buttons and text field html elements not shown

<form enctype="multipart/form-data" action="file-upload.php" method="POST">
      Please choose a file: <input name="uploaded" type="file" /><br />
      <input type="submit" value="Upload" />
 </form>

 </body>

这是file-upload.php ：

<?php
    $target = "upload/";
    $target = $target . basename( $_FILES['uploaded']['name']) ;

    $uploadingFile = $_FILES['uploaded']['tmp_name'] ;
    if(move_uploaded_file($_FILES['uploaded']['tmp_name'], $target))
    {
        // I thought the problem was this 'echo' but the main view still goes blank after
         // I commented this out here....
        //echo "The file ". basename( $_FILES['uploaded']['name']). " has been uploaded";
     }
     else {
            // echo "errmsg"
           }
 ?>

Answer 1

file-upload.php文件需要在上传完成后将用户重定向回index.php，或者需要在底部包含原始的index.php文件。

我投票表示您要么重定向，要么只是完全删除file-upload.php文件并在index.php文件中处理它。

Answer 2

将表单发布到file-upload.php后，您不会将其重定向回HTML所在的index.php。您需要在完成表单处理后调用重定向：

if(move_uploaded_file($_FILES['uploaded']['tmp_name'], $target))
{
    // I thought the problem was this 'echo' but the main view still goes blank after
     // I commented this out here....
    //echo "The file ". basename( $_FILES['uploaded']['name']). " has been uploaded";

    // Redirect back....
    header("Location: http://www.example.com/index.php");
    // Always call exit() right after a redirection header to prevent further script execution.
    exit();
 }
 else {
        // echo "errmsg"
 }

您可能还需要在错误情况下重定向。在这种情况下，请将header()电话放在最后。

Answer 3

对于表单的操作，请指定$ _SERVER ['PHP_SELF']变量：

<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="POST">

然后确保添加逻辑以处理在同一.php文件中处理表单，该文件输出表单的html。另一种方法是让header（）调用再次重定向到您的表单：

<form action="process_form.php" method="POST">

然后，在process_form.php中：

header("Location: http://mydomain.com/form_page.html");

表格POST删除视图

3 个答案: