Why can't I update the data returned by PHP in js?
Source: Internet
Author: User
Why can't I update the data returned by PHP referenced in js? The following code is a timer in JS, which assigns the latest value retrieved by PHP in the database to the variable ads in & nbsp; js and then pops up, then the same process is executed every five seconds, but the value popped up later is not the latest value. In fact, the data has been updated. why? & Lt ;? Phpheader (Content-type: & nbsp; text js references the data returned by PHP. why not update it by yourself?
The following code is a timer in JS, which assigns the latest value retrieved by PHP in the database to the variable ads in js and then pops up, then the same process is executed every five seconds, but the value popped up later is not the latest value. In fact, the data has been updated. why?
Header ("Content-type: text/html; charset = utf-8 ");
Date_default_timezone_set ('prc ');
Include "btcconn. inc. php ";
$ Pdo = new PDO ($ dsn, $ user, $ password, $ options );
?>
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