PHP：临时上传的文件什么时候被删除？
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PHP: When does the temporary uploaded files get deleted?
提问by user1105430
I am running WAMP server. On file upload using PHP I see
我正在运行 WAMP 服务器。在使用 PHP 上传文件时，我看到
$_FILES[tmp_name] => string 'C:\wamp\tmp\phpD382.tmp' (length=23)
$_FILES[tmp_name] => string 'C:\wamp\tmp\phpD382.tmp' (length=23)
I go to that folder and it's empty. I made sure my 'show hidden files' is on from my 'folders option' but I don't see it. Where is it exactly?
我去那个文件夹，它是空的。我确保从“文件夹选项”中打开了“显示隐藏文件”，但我没有看到它。它究竟在哪里？
Besides when does it get deleted? If I don't move that file? For an instance if I'm uploading a file and the file uploaded halfway and I decided to close that browser what happens to the file? When does the server know to delete that temp file?
另外什么时候删？如果我不移动那个文件？例如，如果我正在上传文件并且文件上传到了一半，而我决定关闭该浏览器，文件会发生什么情况？服务器什么时候知道要删除该临时文件？
采纳答案by gorelative
As soon as your PHP script finishes executing and re-saving to the defined location
一旦您的 PHP 脚本完成执行并重新保存到定义的位置
Example using straight PHP, no framework
使用直接 PHP 的示例，无框架
http://www.php.net/manual/en/features.file-upload.post-method.php
http://www.php.net/manual/en/features.file-upload.post-method.php
$uploaddir = '/var/www/uploads/';
$uploadfile = $uploaddir . basename($_FILES['userfile']['name']);
echo '<pre>';
if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile)) {
echo "File is valid, and was successfully uploaded.\n";
} else {
echo "Possible file upload attack!\n";
}
echo 'Here is some more debugging info:';
print_r($_FILES);
print "</pre>";
?>
回答by Hassan Azimi
If you do not do anything with them they will be deleted right after the script is finished.
如果您不对它们进行任何操作，它们将在脚本完成后立即被删除。
回答by Aiphee
If deleting file is not desired, i found that PHP wont delete file after execution if you "move" it to same location.
如果不需要删除文件，我发现如果您将其“移动”到同一位置，PHP 不会在执行后删除文件。
move_uploaded_file($temporaryFile, $temporaryFile);
