Krumo is a replacement for print_r() and var_dump(). But by definition Krumo is a debugging tool (for PHP5 only), which displays structured information about any PHP variable. It is very easy to use; just include Krumo in your script and krumo($var) function will gives you everything you need to know about your variable – i.e., array, object, etc.
Krumo’s output is displayed using CSS and collapsible DHTML tree, which is also customizable by changing CSS skin file. There are several skins pre-installed with this package, but if you wish you can create skins of your own. The skins are simply CSS files that are applied to the output that Krumo generates.
Developed by Kaloyan K. Tsvetkov; Krumo is available for download under LGPL license. You can find further information, documentation, demo & download on Krumo’s Website.