我正在创建一个头像上传功能，用户可以选择文件并将其上传，但是我遇到了以下错误：
Warning: move_uploaded_file(user_files/profile_img/c3487ff77d.jpg) [function.move- uploaded-file]: failed to open stream: Permission denied in /Applications/XAMPP/xamppfiles/htdocs/projects/lr/core/functions/users.php on line 4
Warning: move_uploaded_file() [function.move-uploaded-file]: Unable to move '/Applications/XAMPP/xamppfiles/temp/phpi0WECJ' to 'user_files/profile_img/c3487ff77d.jpg' in /Applications/XAMPP/xamppfiles/htdocs/projects/lr/core/functions/users.php on line 4
第二到五行是：
function change_profile_image($user_id, $file_temp, $file_extn) {
$file_path = 'user_files/profile_img/' . substr(md5(time()), 0, 10) . '.' . $file_extn;
move_uploaded_file($file_temp, $file_path);
}
然后在loggedin.php文件中的其余部分是：
if (isset($_FILES['profile_img']) === true) {
if (empty($_FILES['profile_img']['name']) === true) {
echo 'Please choose a file!';
} else {
$allowed = array('jpg', 'jpeg', 'png');
$file_name = $_FILES['profile_img']['name'];
$file_extn = strtolower(end(explode('.', $file_name)));
$file_temp = $_FILES['profile_img']['tmp_name'];
if (in_array($file_extn, $allowed) === true) {
change_profile_image($session_user_id, $file_temp, $file_extn);
} else {
echo 'Invalid file type! Allowed Types: ';
echo implode(', ', $allowed);
}
}
}
if (empty($user_data['profile_img']) === false) {
echo '<img src="', $user_data['profile_img'],'" alt="', $user_data['first_name'] ,'\'s Profile Image">';
}
我不确定我做错了什么？不是我的 .htaccess 文件有问题，一定是代码出了问题，但为什么呢？
谢谢