PHP上传和零文件大小

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在此,我非常感谢您的帮助。我整整一整天都在努力地将图像上传到运行Zeus的共享主机上(而不是apache,是的,我知道,它们正在改变!)。主持人指责代码,但不会告诉我为什么“由于他们不是程序员”,我尝试了这么多不同版本的表单脚本,所以我选择不了。我当然已经检查了php ini文件配置的上传限制(主机不允许更改),它们都是128meg。因此,看起来这不太可能是原因。脚本的结果是,我们得到最后的“成功加载文件”消息,但是加载的文件大小为零(因此目标目录中没有新内容)。我对php还是比较陌生,所以请不要轻易讲专业术语。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> 

和表单引用的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."; 
  } 
  } 
 ?> 
放克四十尼纳

首先,请确保该uploads文件夹存在,并且文件夹的写权限设置为755777

另外,您有两个未分配的变量$uploaded_size$uploaded_type,因此将失败。

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

尝试一下,看看是否适合您,这就是我使用的方法:

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

仅当大小小于 350000

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

<?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";
  }
?>

还要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> 

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