PHP上傳：注意：未定義索引：文件在在線的： $count = count($_FILES['file']['name']);運(yùn)行我發(fā)現(xiàn)的幾乎所有帶有此錯(cuò)誤的代碼...仍然沒有得到任何結(jié)果PHP代碼：<?php$count = 0;if(isset($_POST['uploadFinish']))  {     $bcode = $_POST['code'];    $newpath = "upload/".$bcode."/";    if (!file_exists($newpath)) {        mkdir($newpath, 0755, true);    }    $count = count($_FILES['file']['name']);    if($count < 1) {         $message = "At least 1 file required"; $count='';    } else {        move_uploaded_file($_FILES['file']['tmp_name'], $newpath.'/File-'.$bcode);    }}?>HTML/JS：<button class="btn btn-primary btntrg123" id="uploadBtn" style="background: #008489; border-color: #008489">Upload file</button> <form style="display: none!important;" id="uploadConf" method="post" enctype="multipart/form-data">    <div style='height: 0px;width:0px; overflow:hidden;'>        <input type="file" id="file" name="file[]" multiple="multiple" onclick="getFile()" class="btn btn-primary inptri123">    </div>    <input type="hidden" name="code" value="<?php echo $code; ?>">    <input name="uploadFinish" value="1" type="hidden"> </form><script type="text/javascript">$(".btntrg123").click(function(event){     event.preventDefault();    $(".inptri123").trigger('click');}); function getFile(){     document.getElementById("file").onchange = function () {        var file = this.value;        console.log(file);        var form = document.getElementById('uploadConf');        form.submit();    };}</script>兩個(gè)代碼都是相同的php文件。從其他文件運(yùn)行 php，結(jié)果相同。Console.log 給了我文件，但它沒有上傳到服務(wù)器。文件夾已創(chuàng)建。