php - move_uploaded_file 出现错误

Question

这是我的表格

<form action="test.php" method="post" name="myform"> 
<table width="500" border="0">
  <tr>
    <td width="369" colspan="3">Admin's Area </td>
    <td width="121"><?php echo $_SESSION['name'];?></td>
  </tr>
  <tr>
    <td colspan="3">sponseres list </td>
    <td><a href="admin.php#sponserForm">+Add new Sponser</a></td>
  </tr>
  <tr>
    <td colspan="3"><?php echo $sponsere_list; ?></td>
    <td>&nbsp;</td>
  </tr>
  <tr>
    <td align="center" colspan="4"> <a name="sponserForm" id="sponserForm"></a> Add New Sponser Form</td>
  </tr>
  <tr>
    <td align="left">Sponser name</td>
    <td align="left"><input type="text" name="spname" id="spname" tabindex="1" /></td>
    <td colspan="2" align="center">&nbsp;</td>
    </tr>
  <tr>
    <td align="left">Image</td>
    <td align="left"><input type="file" name="fileToUpload" /></td>
    <td colspan="2" align="center">&nbsp;</td>
    </tr>
  <tr>
    <td align="left">Add this</td>
    <td align="left"><input type="submit" name="sumit" id="sumit" value="Submit" tabindex="3" /></td>
    <td colspan="2" align="center">&nbsp;</td>
    </tr>
  <tr>
    <td align="center" colspan="4">&nbsp;</td>
  </tr>
</table>
</form>

这是检索它的 php 代码

<?php 
if(isset($_POST['spname'])){
    $spname=mysql_real_escape_string($_POST['spname']);
    $user_query = "INSERT INTO `sponsers` (`spname`)
                                    VALUES ('{$spname}')
                                    ";
    $sql=mysql_query($user_query)or die (mysql_error());
    $spic= mysql_insert_id();
    $newname="$spic.jpg";
    move_uploaded_file($_FILES["fileToUpload"]["tmp_name"],"../sponsers/$newname")or die (mysql_error());
    }
?>

当我尝试上传图像时，它给我这条警告消息注意:未定义索引:第 3 行 J:\xampp\htdocs\srimag\admin\test.php 中的 fileToUpload

所以我尝试使用 $_POST['fileToUpload'] 来回显 fileToUpload 值，它显示的值没有错误，因此无法找出错误。

所以请帮助我:-(谢谢。

Answer 1

您的主要问题是表单上缺少适当的 enctype 属性

<form ... enctype="multipart/form-data">

请务必仔细阅读本手册的这一部分 - http://php.net/manual/en/features.file-upload.php

first page 中提到了您的问题

Note:

Be sure your file upload form has attribute enctype="multipart/form-data" otherwise the file upload will not work.