在 PHP 中上传不会创建临时文件
我正在尝试通过上传表单将图像发送到 php 脚本，但该文件没有显示在我的临时文件夹中。
我尝试搜索错误并找到了此答案。多次检查每个步骤后，我仍然发现自己没有上传文件...
表格 ：
<form id="addImageForm" action="functions/add_image.php" method="POST" enctype="multipart/form-data">
<label for="articleImage">Select a file:</label>
<input type="file" name="articleImage" id="articleImage">
<input type="submit" class="btn btn-success" value="Submit">
</form>
add_image.php 脚本：
<?php
/* Checking request parameters */
if(!isset($_FILES['articleImage']) || empty($_FILES['articleImage'])) {
echo "Error : the file is missing";
die();
}
/* Checking upload errors */
if($_FILES['articleImage']['error'] != UPLOAD_ERR_OK) {
echo "Error : ".$_FILES['articleImage']['error'];
die();
}
/* Checking file size */
if($_FILES['articleImage']['size'] == 0) {
echo "Error : the file is empty";
die();
}
/* Checking file has been uploaded to tmp */
if(is_uploaded_file($_FILES['articleImage']['tmp_name'])) {
echo "Error : the file didn't upload";
die();
}
/* Checking file doesn't already exist */
$imagePath = "img/articles/".$_FILES['articleImage']['name'];
if(file_exists($imagePath)) {
echo "Error : the filename is already taken";
die();
}
/* Writing image */
if(!move_uploaded_file($_FILES['articleImage']['tmp_name'], $imagePath)) {
echo "Error : the file coundn't be written";
die();
}
echo 'Success';
die();
?>
请求已正确发送：
-----------------------------45933353531894573431775954628
Content-Disposition: form-data; name="articleImage"; filename="my_file.png"
Content-Type: image/png
[image content]
-----------------------------45933353531894573431775954628--
但我仍然收到“文件未上传”的消息错误...
正如我之前提到的，我确实检查了我的 php conf（使用 /tmp 作为 upload_tmp_dir 编辑了正确的 php.ini 文件并将上传限制设置为 100M），并且 /tmp 上有 777 chmod。
我缺少什么？
慕田峪91588501回答
-
噜噜哒
我已经复制并以某种方式测试了您的代码。您不需要执行 is_uploaded_file 调用，因为这些检查是在 move_uploaded_file 函数中进行的（https://www.php.net/manual/en/function.is-uploaded- file.php#113766）。另请检查存储图像的目录是否存在。<?php/* Directory where uploaded images will be placed */$imageDir = 'img/articles';/* Checking request parameters */if (!isset($_FILES['articleImage']) || empty($_FILES['articleImage'])) { echo "Error : the file is missing"; die();}/* Checking upload errors */if ($_FILES['articleImage']['error'] != UPLOAD_ERR_OK) { echo "Error : " . $_FILES['articleImage']['error']; die();}/* Checking file size */if ($_FILES['articleImage']['size'] == 0) { echo "Error : the file is empty"; die();}/* Checking if directory exists */if (!is_dir($imageDir)) { echo 'Image directory does not exist'; die();}/* Checking file doesn't already exist */$imagePath = $imageDir . $_FILES['articleImage']['name'];if (file_exists($imagePath)) { echo "Error : the filename is already taken"; die();}/* Writing image */if (!move_uploaded_file($_FILES['articleImage']['tmp_name'], $imagePath)) { echo "Error : the file coundn't be written"; die();}echo 'Success';die();
随时随地看视频慕课网APP
PHP