There are many versions of this file floating around - but I had to whip one together I use in almost all my development and unit/regression testing facilities. This will output a clean hierarchical div-based display of any object - at least within the browser's recursive traversal limitations.

And here's an example javascript object:

print_r([{function:'testing',arguments:['arg1','arg2']}])

And the output HTML:



Here's the function:

function print_r(theObj) {
	var retStr = '';
	if (typeof theObj == 'object') {
		retStr += '<div style="font-family:Tahoma; font-size:7pt;">';
		for (var p in theObj) {
			if (typeof theObj[p] == 'object') {
				retStr += '<div><b>['+p+'] => ' + typeof(theObj) + '</b></div>';
				retStr += '<div style="padding-left:25px;">' + print_r(theObj[p]) + '</div>';
			} else {
				retStr += '<div>['+p+'] => <b>' + theObj[p] + '</b></div>';
			}
		}
		retStr += '</div>';
	}
	return retStr;
}