$uploaddir = 'up-files/images/avt/';
$uploadfile = $uploaddir . basename($_FILES['userfile-img']['name']);
if (isset($_POST['but-mainimage'])) {
if ($_FILES['userfile-img']['type'] == "image/jpeg") {
if (move_uploaded_file($_FILES['userfile-img']['tmp_name'], $uploadfile)) {
$filenameM = $_FILES['userfile-img']['name'];
$avt = mysqli_query($connect, "INSERT INTO table (id,url,username) VALUES ('','$filenameM', '".$_SESSION['logged_user'][1]."')");
echo "Изменение прошло успешно!";
}
}else{
echo "Это не .jpg - файл.";
}
}
Варнинги(многоточием заменил имя домена и имя пользователя):
Warning: move_uploaded_file(up-files/images/avt/x-p_gjKNb58.jpg): failed to open stream: No such file or directory in /home/c/.../.../public_html/index.php on line 261
Warning: move_uploaded_file(): Unable to move '/tmp/phpZipp01' to 'up-files/images/avt/x-p_gjKNb58.jpg' in /home/c/.../.../public_html/index.php on line 261