嗨,我有一个消息提示框,当用户收到新消息时出现,我想要做的是当它弹出时添加声音到这个框,我使用PHP if语句检查用户何时获得新消息和我尝试通过以下操作添加声音,但它不起作用请有人告诉我如何做到这一点.谢谢.
PHP
$check_new_chats = check_new_chats();
while ($chat = MysqL_fetch_array($check_new_chats))
if (isset($_SESSION['user_id'])) {
if ($chat['to_user_id'] == $_SESSION['user_id']){
echo( "最佳答案
PHP
$check_new_chats = check_new_chats();
while ($chat = MysqL_fetch_array($check_new_chats))
if (isset($_SESSION['user_id'])) {
if($chat['to_user_id'] == $_SESSION['user_id']){
echo '