Limited recursion print_r re-implementation

safe_print_r.php

<?php
/**
 * Useful util func for debugging PHP. When var_dump and print_r blows the stack, I use this instead.
 * Eg: die("<pre>".preg_replace("/</", "&lt;", safe_print_r($my_bloated_circular_object))."</pre>");
 * Heavily inspired by the comments on: https://www.php.net/manual/en/function.print-r.php
 */
function safe_print_r($data, $nesting = 6, $indent = '')
{
    $in = '    ';
    if (!is_object($data) && !is_array($data)) {
        return print_r($data, TRUE) . "\n";
    } elseif ($nesting < 0) {
        return "** MORE **\n";
    } else {
        $retVal = ucfirst(gettype($data)) . " (\n";
        foreach ((array)$data as $k => $v) {
            $retVal .= $indent . "${in}[$k] => " . safe_print_r($v, $nesting - 1, "${indent}${in}");
        }
        $retVal .= "$indent)\n";
        return $retVal;
    }
}