showing vars and values.

Is it possible to show all the variables and values in a page at that time without knowing them?

So I could, at the end of my page, do some code to show all vars and val that were in my page.

Not sure it is possible, just thinking of interesting things to try.

Thanks

I'm not sure about every variable currently initialized, but if you use

print "<pre>";
print_r($GLOBALS);
print "</pre>";

it will print all the variables in the global scope. I hope that is of some help.