passing back data from a php page to javascript

[edwardp]

I want to run a javascript that extracts data from an access database, I know that the connecting and querying will be done on php page/script, but how do i pass the data back to the javascript to carry on?

Any ideas or pointers will be appreciated

Thanx in advance

[Qel]

you can use javascript to construct a link back to your php web page which tells it what data to get next.

e.g.

mypage?field1=data1&field2=data2&start=10&list=25&action=retrieve

then access those via $_GET array.

alternatively you can use output the data from php into a form and get the information from the form via $GET or $POST arrays.

I would think it generally best to use the form method as you are collecting the information as the user inputs it.

I am no expert, but I currently have a page where the user data is collected by form and posted. The different buttons the user can select (e.g. first, next, prev, last, retrieve, reset) use a small amount of javascript to set an action variable (e.g. mypage?action=next) and most of my state information is stored in $_SESSION.

I hope this makes sense. 🙂

[Qel]

On revisiting, maybe I tried to answer the wrong question.

You can write javascript, or at least the changeable parts of it, with php.

e.g.

echo("<script language=\"javascript\" type=\"text/javascript\">\n");

echo("var myvar = 'somevalue'");
etc, etc.

echo("</script>");