Calling PHP function in Javascript

Anon

I want to create a DHTML page that doesn't have to refresh everytime around. I want to fill a layer with info from a db. different info when different links are pressed. I want to use PHP to read it out of the db, but I can't think of a way to do this,except with a hidden frame. Does anyone have a suggestion?

Primal Fear

Anon

Yeah hidden frames or iframes or something is about the only thing I can think of. Not a very good solution.

Anon

or
you can do this,
echo "<script language=\"javascript\">self.location=\"javascript:myfunction();\"</script>"; That will execute myfunction(), you can also do redirects through that,

echo "<script language=\"javascript\">
self.location=\"http://www.phpbuilder.com\";
</script>
";

-g

Anon

THe following code seems to me like I am executing a js function from a php function. I want it the other way around. I want to execute a php function from a javascript command. So this function:

language=\"javascript\">self.location=\"javascript:myfunction();\"</script>";

Doesn't work I think.

Primal Fear

Anon

Sorry didn't read carefully... this is one way to do it, set up a switch statement
switch($action) {
default:
//if now action is selected
break;
case 1:
//when $action = 1
function1();
break;
case 2:
//when $action = 2
function2();
break;
//etc...
}

that is one way to execute a php function from javascript, but since php is server side and javascript is clientside, the two cannot interact in any easy form.

Anon

We're almost there, my problem first stated is that I don't want to load a new page, so what I want is to send a comment to the server saying that I want to execute a php-function and whatever this function results I want to get back in a js-variable. so something like:

function aJSFunction()
{
DBValue = ExecutePHPFunction(SomeVars);
alert(DBValue);
}

or something like that. I don't care how the var is filled, but I DON'T want to load a page in a frame.

Hope you know a solution!

Primal Fear

Anon

ok, try this
function aJSFunction()
{
DBValue = <?php aPHPFunction(SomeVars); ?>
alert(DBValue);
}

or a better way is to do it all in php,
<?php
$dbvalue = aPHPFunction(SomeVars);
echo "<script language=\"javascript\">alert($dbvalue);
</script>";
?>

Anon

Of course you understand that I don't really want to alert the value I want to set a time and execute the PHP function every minute for instance. This to refresh data on the screen. Now I am just starting with php, but since it IS a server side scripting language can you explain to me why this works according to you!:

DBValue = <?php aPHPFunction(SomeVars); ?>

what would I see, if I would do a [view source] in my browser!?

Primal Fear

Anon

a server side scripting language is a language that needs an interpreter built on the server, javascript is client side, meaning the web browser interprets it, i see what you want to do and i think it would be best to do the entire thing in php, just echo some meta tags to refresh every minutes and run through your PHP script again...

in the instance of DBValue = <?php aPHPFunction(SomeVars); ?>
you would echo the result of the aPHPFunction and when you view the source you would see DBValue = theresultofthefunction

eg
<?php
function aPHPFunction() {
echo "'This is the result'"
}
?>

The line DBValue = <?php ...
would read
DBValue = 'This is the result';

-g

Anon

This won´t work because jscript and php will not interact. Is there a way of calling php from javascript?

--One thing I saw, is that one can use variable sharing, I mean:

Some HTML
Some Javascript
Some php and a variable
Some HTML
Some php that understands the variable

The other way is to submit a form and capture it in php, the form values can be manipulated in Javascript, and then after submiting you will have them in php.

Tried several times to execute php from javascript, but it did not work. Also tried to execute php in the middle of a javascript, also did not work.