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非常感谢这里的一些帮助。我一整天都在努力将图像上传到运行 Zeus 的共享主机（而不是 apache——是的，我知道，它们正在改变！）。主持人责备代码但不会告诉我为什么“因为他们不是程序员”我尝试了这么多不同版本的表单脚本，我没有选择。我当然检查了 php ini 文件配置的上传限制（主机不允许我更改），它们都是 128meg。所以看起来这不太可能是原因。脚本的结果是我们得到最终的“成功加载文件”消息，但加载的文件大小为零（因此目标目录中没有新内容）。我对 php 比较陌生，所以请在行话上放轻松。谢谢你。

这是两个文件>>首先是表格...

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

以及表单引用的php文件...

<?php 
 $target = "uploads/"; 
 $target = $target . basename( $_FILES['uploaded']['name']) ; 
 $ok=1;

 //This is our size condition 
 if ($uploaded_size >350000) 
 { 
 echo "Your file is too large.<br>"; 
 $ok=0; 
 } 

 //This is our limit file type condition 
 if ($uploaded_type =="text/php") 
 { 
 echo "No PHP files<br>"; 
$ok=0; 
 } 

 //Here we check that $ok was not set to 0 by an error 
  if ($ok==0) 
 { 
  Echo "Sorry your file was not uploaded"; 
  } 

   //If everything is ok we try to upload it 
  else 
   { 
  if(move_uploaded_file($_FILES['uploaded']['tmp_name'], $target)) 
  { 
  echo "The file ". basename( $_FILES['uploadedfile']['name']). " has been uploaded    to..";
  echo $target;

 echo "..The uploaded file size is $uploaded_size";
  } 
 else 
  { 
  echo "Sorry, there was a problem uploading your file."; 
  } 
  } 
 ?>
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1 回答 1

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首先确保该uploads文件夹存在并且将写入权限设置为755或777

另外，您有两个未分配的变量，$uploaded_sizeand $uploaded_type，所以这将失败。

您将需要使用类似if ($_FILES["file"]["size"] <350000)等的东西。这可能是它失败的另一个原因。

试试这个，看看这是否适合你，这就是我使用的：

修改$allowedExts = array("gif", "jpeg", "jpg", "png");允许的文件扩展名。

仅当大小小于时才会上传350000

注意：更改<input name="uploaded" type="file" />以<input name="file" type="file" />查看处理程序代码下的表单。

<?php
$allowedExts = array("gif", "jpeg", "jpg", "png");
$extension = end(explode(".", $_FILES["file"]["name"]));
if ((($_FILES["file"]["type"] == "image/gif")
|| ($_FILES["file"]["type"] == "image/jpeg")
|| ($_FILES["file"]["type"] == "image/jpg")
|| ($_FILES["file"]["type"] == "image/png"))
&& ($_FILES["file"]["size"] < 350000)
&& in_array($extension, $allowedExts))
  {
  if ($_FILES["file"]["error"] > 0)
    {
    echo "Return Code: " . $_FILES["file"]["error"] . "<br>";
    }
  else
    {
    echo "Upload: " . $_FILES["file"]["name"] . "<br>";
    echo "Type: " . $_FILES["file"]["type"] . "<br>";
    echo "Size: " . ($_FILES["file"]["size"] / 1024) . " kB<br>";
    echo "Temp file: " . $_FILES["file"]["tmp_name"] . "<br>";

    if (file_exists("uploads/" . $_FILES["file"]["name"]))
      {
      echo $_FILES["file"]["name"] . " already exists. ";
      }
    else
      {
      move_uploaded_file($_FILES["file"]["tmp_name"],
      "uploads/" . $_FILES["file"]["name"]);
      echo "Stored in: " . "uploads/" . $_FILES["file"]["name"];
      }
    }
  }
else
  {
  echo "Invalid file";
  }
?>

还将您的表单更改为此以反映 PHP 处理程序：

<form enctype="multipart/form-data" action="anewupload.php" method="POST">
Please choose a file: <input name="file" type="file" /><br />
<input type="submit" value="Upload" />
</form>
于 2013-09-06T18:40:26.537 回答