PHP: Get all variables defined in current scope/symbol table

Question

Is there a function and/or object and/or extension in PHP that will let you view all the variabled defined in the current scope? Something like

var_export($GLOBALS)

but only showing variables in the current symbol table.

Answer 1

get_defined_vars

This function returns a multidimensional array containing a list of all defined variables, be them environment, server or user-defined variables, within the scope that get_defined_vars() is called.

Answer 2

get_defined_vars() does exactly what you want.

This function returns a multidimensional array containing a list of all defined variables, be them environment, server or user-defined variables, within the scope that get_defined_vars() is called.

>>> function test($foo) { print_r(get_defined_vars()); }
>>> test('bar');
Array
(
    [foo] => bar
)