A Better alternative to PHP print_r() function.

PHP: better_print_r.php

<?php
/**
 * This function is an alternative  to default PHP print_r() function.
 * it displays the output as a recursive list items with highlighted key and values.
 */
function pp($arr){
    $retStr = '<ul>';
    if (is_array($arr)){
        foreach ($arr as $key=>$val){
            if (is_array($val)){
                $retStr .= '<li><span style="color:red;">' . $key . '</span><b> => </b><span style="color:blue;">' . pp($val) . '</span></li>';
            }else{
                $retStr .= '<li><span style="color:red;">' . $key . '</span><b> => </b><span style="color:blue;">' . $val . '</span></li>';
            }
        }
    }
    $retStr .= '</ul>';
    return $retStr;
}

echo pp($_REQUEST);
/**
 * Of course if you need something more stable for some bigger project, My personal favorite is kurmo "http://krumo.kaloyan.info/".
 */
?>