Ask if you can play the alarm sound in the webpage

Can I play the alarm sound in the webpage?
For example, I added a variable $alarmthreshold, which automatically plays the sound when it exceeds a certain threshold value. How do you fix it? Do you want to add a flash or something like that? To find a method.

------Solution--------------------
PHP is not able to speak. To use the media label for Flash or HTML
------Solution--------------------
Then you have to interact with the front end of the line.

Finally, we want JS to trigger it.
------Solution--------------------
This to use JS control, you can use PHP to put a judgment on the page, with JS to get the value of the value, and then output the alarm sound:

JScript Code

