JS inside the reference to the data returned by PHP, why not update it yourself?

The following code, is JS inside to do a timer, PHP in the database to retrieve the latest value assigned to JS inside the variable ads after the pop-up, and then every 5 seconds to perform the same process, but each popup is not the latest value, the fact that the data has been updated, which is why AH?

Header ("content-type:text/html; Charset=utf-8 ");
Date_default_timezone_set (' PRC ');
Include "btcconn.inc.php";
$pdo = new PDO ($DSN, $user, $password, $options);
?>

Reply to discussion (solution)

The PHP code embedded in the JS code is executed only when the page is loaded. It won't be executed again.

Thanks for the above, haha.

