How do I examine defined constants in PHP?

Question

I'm stepping through the source code of CodeIgniter with Xdebug in NetBeans and I'm looking for a way to see defined constants as they are defined. If it's not possible, are there any other ways to display all defined constants?

Answer 1

Take a look at the get_defined_constants function. It will return an array of all the defined constants in the code up to the point of the function call. You can then use print_r to print out the array.

Answer 2

You probably want to adapt:

$arr = get_defined_vars();