Question

我找到了一个带有进度条的漂亮的上传脚本。但不幸的是它对我不起作用:( 我总是得到一个错误：未定义的索引：第7行的C：\ wamp \ www \ upload \ upload_parser.php中的file1。我花了几个小时才摆脱它取得任何成功。但该剧本应该有效。有谁知道我为什么会收到这个错误？（仅供参考：我是从http://www.developphp.com/view.php?tid=1351下载的）我已经检查过php.ini。 $ _Files的print_r显示一个空错误。我读到了一些关于无法通过Ajax上传图像的内容。但该脚本适用于其他用户。非常奇怪。

我很欣赏每一个提示。非常感谢你的进步。

<!DOCTYPE html>
<html>
    <head>
        <title>TODO supply a title</title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width">
        <script>

            function _(el) {
                return document.getElementById(el);
            }

            function uploadFile() {
                 var file = _("file1").files[0];
                alert (file.name+" - "+file.size+" - "+file.type);
                var formdata = new FormData();
                formdata.append("file1", file);
                var ajax = new XMLHttpRequest();
                ajax.upload.addEventListener("progress", progressHandler, false);
                ajax.addEventListener("load", completeHandler, false);
                ajax.addEventListener("error", errorHandler, false);
                ajax.addEventListener("abort", abortHandler, false);
                ajax.open("POST", "upload_parser.php");
                ajax.send();
            }

            function progressHandler (event) {
                _("loaded_n_total").innerHTML = "Uploaded "+event.loaded+" bytes of "+event.total;
                var percent = (event.loaded / event.total) * 100;
                _("progressBar").value = Math.round(percent);
                _("status").innerHTML = Math.round(percent) +"% uploaded... please wait";
            }

            function completeHandler (event) {
                _("status").innerHTML = event.target.responseText;
                _("progressBar").value = 0;
            }

            function errorHandler (event) {
                _("status").innerHTML = "Upload Failed";
            }

            function abortHandler (event) {
                _("status").innerHTML = "Upload Aborted";
            }


        </script>
    </head>
    <body>
        <div>File Upload</div>
        <form id="upload_form" enctype="multipart/form-data" method="post">
            <input type="file" name="file1" id="file1"><br>
            <input type="button" value="Upload File" onclick="uploadFile()">
            <progress id="progressBar" value="0" max="100" style="width: 300px;"></progress>
            <h3 id="status"></h3>
            <p id="loaded_n_total"></p>
        </form>
    </body>
</html>

upload_parser.php文件：

<?php
print_r($_FILES);

$fileName = $_FILES["file1"]["name"];
$fileTmpLoc = $_FILES["file1"]["tmp_name"];
$fileType = $_FILES["file1"]["type"];
$fileSize = $_FILES["file1"]["size"];
$fileErrorMsg = $_FILES["file1"]["error"];

if (!$fileTmpLoc) {
    echo "ERROR! Please browse for a file before clicking the upload button.";
    exit();
}

if (move_uploaded_file($fileTmpLoc, "uploads/$fileName")) {
    echo "$fileName upload is complete";
}
else {
    echo "move_uploaded_file function failed";
}

?>

Answer 1

if (move_uploaded_file($fileTmpLoc, "**uploads**/$fileName")) { echo "$fileName upload is complete"; }

创建上传文件夹。然后它将被修复。

Answer 2

我对同一个脚本也有同样的问题。我可以通过在php.ini中执行以下更改来解决：

 php_value  upload_max_filesize 20M
 php_value  post_max_size 20M
 php_value  max_execution_time 200
 php_value  max_input_time 200

Answer 3

而不是

ajax.send();

应该说

ajax.send(formdata);

希望有所帮助！

带有进度条的PHP上传脚本（HTML5）。未定义的索引

3 个答案: