Re: new data detect
| From: | Hugh Bothwell | Date: | Thu, 26 Jul 2001 02:28:30 +0000 |
| Subject: | Re: new data detect | ||
| References: | 1 | Groups: | php.db |
| Request: | Send a blank email to php-db+get-10781@lists.php.net to get a copy of this message | ||
"Sommai Fongnamthip" <sommai@thaithanakit.co.th> wrote in message
news:5.1.0.14.2.20010726085848.00a7f760@langsuan.thaithanakit.co.th...
> Hi,
> I decide to make real time application (like stock market or online
> news). How could I know when new data arrive to table and retrieve them
to
> display or update in web page?
You can't, actually, short of using server-side push;
what you can do is periodically requery the server; either reload the page
every so often, or (better) use a flag file - set it when data is changed -
and check it in the background with JavaScript, then reload the page only
when it is set.