Display an array in a readable/hierarchical format

Question

Here is the code for pulling the data for my array

<?php
    $link = mysqli_connect('localhost', 'root', '', 'mutli_page_form');

    $query = "SELECT * FROM wills_children WHERE will=73";

    $result = mysqli_query($link, $query) or die(mysqli_error($link));

    if ($result = mysqli_query($link, $query)) {

    /* fetch associative array */
    if($row = mysqli_fetch_assoc($result)) {
        $data = unserialize($row['children']);
    }

    /* free result set */
    mysqli_free_result($result);
    }
?>

When I use print_r($data) it reads as:

Array ( [0] => Array ( [0] => Natural Chlid 1 [1] => Natural Chlid 2 [2] => Natural Chlid 3 ) ) 

I would like it to read as:

Natural Child 1
Natural Child 2
Natural Child 3

Answer 1

Instead of

print_r($data);

try

print "<pre>";
print_r($data);
print "</pre>";

Answer 2

print("<pre>".print_r($data,true)."</pre>");

Answer 3

I have a basic function:

function prettyPrint($a) {
    echo "<pre>";
    print_r($a);
    echo "</pre>";
}

prettyPrint($data);

EDIT: Optimised function

function prettyPrint($a) {
    echo '<pre>'.print_r($a,1).'</pre>';
}

EDIT: Moar Optimised function with custom tag support

function prettyPrint($a, $t='pre') {echo "<$t>".print_r($a,1)."</$t>";}