PHP文件上传

代码修改来自w3school

如果服务器配置问题，会有上传不成功的情况，可以试试将文件夹属性改为777. (sudo chmod  (-R同时设置所有子目录) 777 OOXX )

(仔细把代码打一遍还是能学到很多事情的..为什么以前的apache不需要修改权限呢？不明白…)

上传控件

<form action="upload_file.php" method="post"
enctype="multipart/form-data">
<label for="file">Filename:</label>
<input type="file" name="file" id="file" />
<br />
<input type="submit" name="submit" value="Submit" />
</form>

获取文件判断转移

$filename = $_FILES["file"]["name"];
$filetype = $_FILES["file"]["type"];
$filesize = $_FILES["file"]["size"];

if  ((($filetype=="image/gif")
    ||($filetype=="image/jpeg")
    ||($filetype=="image/pjpeg"))
    &&($filesize < 20000))
   {
	if ($_FILES["file"]["error"] > 0 )
	{
	 echo "Error: " . $_FILES["file"]["error"] . "
";
	}
	else
	{
	echo "upload: " .$filename . "
";
	echo "Type: " .$filetype . "
";
	echo "Size: " .($filesize /1024) . "KB 
";
    echo "Stored in: " .$_FILES["file"]["tmp_name"] ." 
 "; 

    if (file_exists("upload/" . $filename))
    {
        echo $filename . "  already exists,  try change a name.";
    }
    else 
    {
        $res=move_uploaded_file($_FILES["file"]["tmp_name"],
            "upload/" . $_FILES["file"]["name"] );
        if ($res)
        {
            echo "Stored in: " . "upload/" . $filename;
        }
        else 
        {
            echo "Error in move!";    
        }
    }
    }
   }
else 
{
    echo "Invalid file";
}