xampp 中的 htdocs 文件夹具有 777 权限，我可以在那里手动复制更改任何文件，但将文件上传到子文件夹会出错。我的代码是：
<?php
define ('MAX_FILE_SIZE', 1024 * 50);
if (array_key_exists('submit', $_POST)) {
// define constant for upload folder
define('UPLOAD_DIR', '/opt/lampp/htdocs/properties/');
// replace any spaces in original filename with underscores
$file = str_replace(' ', '_', $_FILES['image']['name']);
// create an array of permitted MIME types
$permitted = array('image/gif', 'image/jpeg', 'image/pjpeg','image/png');
// upload if file is OK
if (in_array($_FILES['image']['type'], $permitted)
&& $_FILES['image']['size'] > 0
&& $_FILES['image']['size'] <= MAX_FILE_SIZE) {
switch($_FILES['image']['error']) {
case 0:
// check if a file of the same name has been uploaded
if (!file_exists(UPLOAD_DIR . $file)) {
// move the file to the upload folder and rename it
$success = move_uploaded_file($_FILES['image']['tmp_name'], UPLOAD_DIR $file);
} else {
$result = 'A file of the same name already exists.';
}
if ($success) {
$result = "$file uploaded successfully.";
} else {
$result = "Error uploading $file. Please try again.";
}
break;
case 3:
case 6:
case 7:
case 8:
$result = "Error uploading $file. Please try again.";
break;
case 4:
$result = "You didn't select a file to be uploaded.";
}
} else {
$result = "$file is either too big or not an image.";
}
}
?>
我得到的错误是：
Warning: move_uploaded_file(/opt/lampp/htdocs/properties/Cover.jpg): failed to open stream: Permission denied in /opt/lampp/htdocs/listprop.php on line 82