dBug is a php library that print a nice-formatted dump of a variable:
include_once("dBug.php");
$variable = array(
"first"=>"1",
"second",
"third"=>array(
"inner third 1",
"inner third 2"=>"yeah"),
"fourth");
new dBug($variable);
Will be formatted like this:
Variable types supported are: Arrays, Objects, Recordsets and XML Resources.
