PHP - $ _FILES数组是空的 [英] PHP - $_FILES array is empty

问题描述

是的，设置 enctype 属性。其他形式/形式hanlders工作正常，所以临时目录必须是可写的。我出了主意。

我检查了后的值和 $ _ POST ['file'] exists和包含文件的名称。

这是我的表单和处理它的PHP。我缺少什么？

 < form action ='orl_ftp.php'method ='post'enctype ='multipart / form -data'> 
< table> 
< tr> 
< td>选取档案：< / td> 
< td>< INPUT type ='file'id ='file'name ='file'>< / td> 
< / tr> 
< tr> 
< td>& nbsp;< / td> 
< td>< INPUT type ='submit'name ='Submit'value ='Process'>< / td> 
< / tr> 
< / table> 
< / form> 
  

和相关的PHP代码。请注意，$ _FILES数组设置为，它只是空。

  if（isset（$ _ POST ['Submit']））{
 $ upload_results =; 
 if（！isset（$ _ FILES））{$ upload_results。=没有文件上传; } 
 if（$ upload_results ==）{
 
 echo< pre>; 
 var_dump（$ _ FILES）; 
出口; 
 
 ... 
 
 
 $ b code $ pre 
 <在线101：
 < form method =
解决方案
 POSTaction =<？php echo $ _SERVER ['PHP_SELF'];？> /> 
 
 
 
 
 
 $这是导致问题，浏览器保持这种形式打开，因此缺少 enctype 是问题。 
 
 
 
示例：
 
 
 < ？php 
 if（isset（$ _ POST ['Submit']））{
 $ upload_results =; 
 if（！isset（$ _ FILES））{$ upload_results。=没有文件上传; } 
 if（$ upload_results ==）{
 echo< pre>; 
 var_dump（$ _ FILES）; 
出口; 
} 
} 
？> 
< form action =''method =post/> 
< form action =''method ='post'enctype ='multipart / form-data'> 
< table> 
< tr> 
< td>选取档案：< / td> 
< td>< INPUT type ='file'id ='file'name ='file'>< / td> 
< / tr> 
< tr> 
< td>& nbsp;< / td> 
< td>< INPUT type ='submit'name ='Submit'value ='Process'>< / td> 
< / tr> 
< / table> 
< / form> 
  
这不会发布任何档案。
 
Yes, the enctype attribute is set. Other forms/form-hanlders work fine so the temp directory must be writable. I'm out of Ideas.

I checked the post values and $_POST['file'] exists and contains the name of the file.

Here is my form and the PHP that handles it. What am I missing?
<form action='orl_ftp.php' method='post' enctype='multipart/form-data'>
    <table>
        <tr>
            <td>Choose File: </td>
            <td><INPUT type='file' id='file' name='file'></td>
        </tr>
        <tr>
            <td>&nbsp;</td>
            <td><INPUT type='submit' name='Submit' value='Process'></td>
        </tr>
    </table>
</form>
And the relevant PHP code. Note that the $_FILES array is set, it's just empty.
if(isset($_POST['Submit'])){
    $upload_results = "";
    if(!isset($_FILES)){$upload_results .= "No files uploaded"; }
    if($upload_results == ""){

        echo "<pre>";
        var_dump($_FILES);
        exit;

        // ...

    }
}

解决方案
On line 101:
<form method="POST" action="<?php echo $_SERVER['PHP_SELF']; ?>" />
                                                                 ^
This is causing  the issue, the browser it keeping this form open and therefore the missing enctype is the issue. Remove or close this form properly.

Example:
<?php
if(isset($_POST['Submit'])){
    $upload_results = "";
    if(!isset($_FILES)){$upload_results .= "No files uploaded"; }
    if($upload_results == ""){
        echo "<pre>";
        var_dump($_FILES);
        exit;
    }
}
?>
<form action='' method="post" />
<form action='' method='post' enctype='multipart/form-data'>
    <table>
        <tr>
            <td>Choose File: </td>
            <td><INPUT type='file' id='file' name='file'></td>
        </tr>
        <tr>
            <td>&nbsp;</td>
            <td><INPUT type='submit' name='Submit' value='Process'></td>
        </tr>
    </table>
</form>
This will not post any files.

                        
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