Question

大家好我有一个表格html，我希望上传文件有这个表格

<body>
    <div align="center">ELENCA TABELLE PRESENTI NEL DB</div>
        <form action="index.php" method="post"
        enctype="multipart/form-data">
<table>
    <tr>
        <td>
            Filename:
        </td>
        <td>
            <input type="file" name="file" id="file">
        </td>
    </tr>
    <tr>
        <td colspan="2" align="right">
            <input type="submit" name="submit" value="Submit">
        </td>
    </tr>
</table>
</form>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.4/jquery.js"></script>
        <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js" integrity="sha384-0mSbJDEHialfmuBBQP6A4Qrprq5OVfW37PRR3j5ELqxss1yVqOtnepnHVP9aJ7xS" crossorigin="anonymous"></script>
        <script src="/include/js/bootstrap-contextmenu.js"></script>
        <script type="text/javascript" src="/include/js/bootflat.min.js"></script>
        <script type="text/javascript" src="https://cdn.datatables.net/s/bs/pdfmake-0.1.18,dt-1.10.10,af-2.1.0,b-1.1.0,b-colvis-1.1.0,b-html5-1.1.0,b-print-1.1.0,cr-1.3.0,fc-3.2.0,fh-3.1.0,kt-2.1.0,r-2.0.0,rr-1.1.0,sc-1.4.0,se-1.1.0/datatables.min.js"></script>
</body>

我有这个脚本php用于上传这个表单的文件，我想将文件上传到我的上传根目录

$UploadDirectory    = 'uploads/'; //Upload Directory, ends with slash & make sure folder exist
$SuccessRedirect    = 'successo.html'; //Redirect to a URL after success


if (!@file_exists($UploadDirectory)) {
    //destination folder does not exist
    die("Make sure Upload directory exist!");
}

if($_POST)
{
    if(!isset($_POST['mName']) || strlen($_POST['mName'])<1)
    {
        //required variables are empty
        die("Title is empty!");
    }


    if($_FILES['mFile']['error'])
    {
        //File upload error encountered
        die(upload_errors($_FILES['mFile']['error']));
    }

    $FileName           = strtolower($_FILES['mFile']['name']); //uploaded file name
    $FileTitle          = mysql_real_escape_string($_POST['mName']); // file title
    $ImageExt           = substr($FileName, strrpos($FileName, '.')); //file extension
    $FileType           = $_FILES['mFile']['type']; //file type
    $FileSize           = $_FILES['mFile']["size"]; //file size
    $RandNumber         = rand(0, 9999999999); //Random number to make each filename unique.
    $uploaded_date      = date("Y-m-d H:i:s");

    switch(strtolower($FileType))
    {
        //allowed file types
        case 'image/png': //png file
        case 'image/gif': //gif file
        case 'image/jpeg': //jpeg file
        case 'application/pdf': //PDF file
        case 'application/msword': //ms word file
        case 'application/vnd.ms-excel': //ms excel file
        case 'application/x-zip-compressed': //zip file
        case 'text/plain': //text file
        case 'text/html': //html file
            break;
        default:
            die('Unsupported File!'); //output error
    }


    //File Title will be used as new File name
    $NewFileName = preg_replace(array('/s/', '/.[.]+/', '/[^w_.-]/'), array('_', '.', ''), strtolower($FileTitle));
    $NewFileName = $NewFileName.'_'.$RandNumber.$ImageExt;
   //Rename and save uploded file to destination folder.
   if(move_uploaded_file($_FILES['mFile']["tmp_name"], $UploadDirectory . $NewFileName ))
   {
        header('Location: '.$SuccessRedirect); //redirect user after success

   }else{
        die('error uploading File!');
   }
}

//function outputs upload error messages, http://www.php.net/manual/en/features.file-upload.errors.php#90522
function upload_errors($err_code) {
    switch ($err_code) {
        case UPLOAD_ERR_INI_SIZE:
            return 'The uploaded file exceeds the upload_max_filesize directive in php.ini';
        case UPLOAD_ERR_FORM_SIZE:
            return 'The uploaded file exceeds the MAX_FILE_SIZE directive that was specified in the HTML form';
        case UPLOAD_ERR_PARTIAL:
            return 'The uploaded file was only partially uploaded';
        case UPLOAD_ERR_NO_FILE:
            return 'No file was uploaded';
        case UPLOAD_ERR_NO_TMP_DIR:
            return 'Missing a temporary folder';
        case UPLOAD_ERR_CANT_WRITE:
            return 'Failed to write file to disk';
        case UPLOAD_ERR_EXTENSION:
            return 'File upload stopped by extension';
        default:
            return 'Unknown upload error';
    }
}

但结果是所有类型的文件都是“标题为空”，为什么？我在网上搜索但没什么..

Answer 1

if(!isset($_POST['mName']) || strlen($_POST['mName'])<1)

您正在寻找$_POST["mName"]，但没有{＆＃34; mName＆＃34; name属性的字段在你的形式，像这样：

<input type="text" name="mName">

类似地：

if($_FILES['mFile']['error'])

在这里，您需要查找名称为＆＃34; mFile＆＃34;的文件，但表单中的input的{{1}}属性值为＆＃34;文件＆＃34;。< / p>

Answer 2

替换

 if(!isset($_POST['mName']) || strlen($_POST['mName'])<1)

与

if(!isset($_POST['file']) || strlen($_POST['file'])<1)

Answer 3

由于未分配用于检查的值，因此需要分配它们。以下是您在表单中需要进行的更改：

<form action="index.php" method="post" enctype="multipart/form-data">
<table>
    <tr>
        <td>
            Filename:
        </td>
        <td>
            <input type="file" name="mFile" id="mFile">
        </td>
        <td>
            <input type="text" name="mName" id="mName">
        </td>
    </tr>
    <tr>
        <td colspan="2" align="right">
            <input type="submit" name="submit" value="Submit">
        </td>
    </tr>
</table>
</form>

用PHP上传文件不起作用

3 个答案: