get_**USER**_defined_vars ?

[bentman]

Hey all,

Any ideas on how to get a list of all user-defined variables? get_user_defined_vars() doesn't seem to exist.

What I want is something like get_defined_vars(), but without all the server and global variables etc., like when get_defined_vars() is called from within a function, and returns only those vars which have been defined since calling the function.

I guess I could call get_defined_vars() at the beginning of the script and call it again when I want the list of user defined vars later, then compare the output, but I'm wondering if there is a more eloquent solution.

Thanks in advance,
Ben

[junebug]

well, the user defined variables will be in either the $HTTP_POST_VARS or $HTTP_GET_VARS and you can just use:

foreach($HTTP_POST_VARS as $key => $val){
echo $key
}

to list all user defined variables.

[bentman]

Thank you for the response, but I think we might be using the term 'user' differently.

I do not mean those variables sent by the 'user' of my PHP page, but rather a list of any variables which I may have defined within the PHP script.

So, 'user variables' in a simlilar sense that this example refers to a user function:

<PRE>
barber ($type) {
print "You wanted a $type haircut, no problem";
}
call_user_func ('barber', "mushroom");

</PRE>

-Ben

chris wrote:

well, the user defined variables will be in either the $HTTP_POST_VARS or $HTTP_GET_VARS and you can just use:

foreach($HTTP_POST_VARS as $key => $val){
echo $key
}

to list all user defined variables.