Check to see if a data base has been changed

data base is a file

[MrGecko]

I'm making a chat engine and i got every thing working i just need a script that will check to see if the data base has been change and if it has it will refresh a frame

can any one help me

[cmarshall]

You may find this has already been done.

Check for "AJAX Chat" software.

[MrGecko]

is ajax the same thing as javascript?

[eelixduppy]

>> is ajax the same thing as javascript?

Not exactly. You use JavaScript, but they aren't the same.

AJAX = Asynchronous JavaScript And XML

AJAX Tutorial [w3schools.com]

[MrGecko]

do i have to have ajax installed on my web server to use it?

[eelixduppy]

ajax isn't server-side, therefore, no installation. You just need a browser that is capable; most are as of now.

[MrGecko]

Thanks i'll take alook at it

[phranque]

AJAX means Asynchronous JavaScript and XML.

functionally it means you have something in javascript that can request information from the server and update the page without having to send a complete new page.

the mechanism is typically the XMLHttpRequest object requesting an XML document from the server which is then parsed by the javascript.

[MrGecko]

if i can find a script in php than i'll be happy

[phranque]

i just need a script that will check to see if the data base has been change and if it has it will refresh a frame

a script on your server can't do jack to your frame without a request.
however, your frame can refresh itself - if it has an asynchronous tool to request a document from a script on your server...

[MrGecko]

now i'm using a meta tag but it dose it every sec not when there is a update to the data base

[MrGecko]

i think i found one i can read the source and find out how it works

[MrGecko]

php Free Chat is a free, simple to install, fast, customizable and multi
languages chat that uses a simple filesystem for message and nickname
storage. It uses AJAX to smoothly refresh (no flicker) and display the
chat zone and the nickname zone. It supports customized themes based on
CSS and a plugin system that allows you to write your own storage
routines (ex: Mysql, IRC backends ...), and you own chat commands!