PHP Reddit API get post comments

rdt_comments.php

<?php

function commentData(array $data): array
{
    if (isset($data['data']['body'])) {
        $d = $data['data'];
        if (isset($d['author_flair_richtext'][0])) {
            $frt = $d['author_flair_richtext'];
            if ($frt[0]['e'] === 'text') {
                $flair = $frt[0]['t'];
            } elseif ($frt[1]['e'] === 'text') {
                $flair = $frt[1]['t'];
            }
        } else {
            $flair = $d['author_flair_text'];
        }
        $arr = array(
            'success' => true,
            'post_id' => str_replace("t3_", "", $d['link_id']),
            'comment_id' => $d['name'],
            'is_child' => ($d['parent_id'] === $d['link_id']) ? 0 : 1,
            'is_parent' => ($d['parent_id'] === $d['link_id']) ? 1 : 0,
            'parent_id' => ($d['parent_id'] === $d['link_id']) ? null : $d['parent_id'],
            'user' => $d['author'],
            'ups' => $d['score'],
            'sub' => $d['subreddit'],
            'edited' => $d['edited'],
            'awards_count' => $d['total_awards_received'],
            'flair' => $flair,
            'depth' => $d['depth'],
            'datetime' => gmdate('Y-m-d H:i:s', $d['created_utc']),
            'comment' => $d['body'],
            'comment_html' => $d['body_html']
        );
    } else {
        $arr = array('success' => false);
    }
    return $arr;
}

$sub = 'nba';
$post_id = 'ito0oc';

$url = "https://www.reddit.com/r/$sub/comments/$post_id/.json?limit=999";

$data = json_decode(file_get_contents($url), true);

$count = count($data[1]['data']['children']);

foreach ($data[1]['data']['children'] as $t1) {
    //Parent comments
    echo json_encode(commentData($t1)) . '<br>';
    if (isset($t1['data']['replies'])) {
        $t1_replies = $t1['data']['replies'];
        if ($t1_replies !== '') {
            $count += count($t1_replies['data']['children']);
            //Level 1
            foreach ($t1['data']['replies']['data']['children'] as $t2) {
                echo '--' . json_encode(commentData($t2)) . '<br>';
                if (isset($t2['data']['replies'])) {
                    $t2_replies = $t2['data']['replies'];
                    if ($t2_replies !== '') {
                        $count += count($t2_replies['data']['children']);
                        //Level 2
                        foreach ($t2['data']['replies']['data']['children'] as $t3) {
                            echo '----' . json_encode(commentData($t3)) . '<br>';
                            if (isset($t3['data']['replies'])) {
                                $t3_replies = $t3['data']['replies'];
                                if ($t3_replies !== '') {
                                    $count += count($t3_replies['data']['children']);
                                    //Level 3
                                    foreach ($t3['data']['replies']['data']['children'] as $t4) {
                                        echo '------' . json_encode(commentData($t4)) . '<br>';
                                        if (isset($t4['data']['replies'])) {
                                            $t4_replies = $t4['data']['replies'];
                                            if ($t4_replies !== '') {
                                                $count += count($t4_replies['data']['children']);
                                                //Level 4
                                                foreach ($t4['data']['replies']['data']['children'] as $t5) {
                                                    echo '--------' . json_encode(commentData($t5)) . '<br>';
                                                    if (isset($t5['data']['replies'])) {
                                                        $t5_replies = $t5['data']['replies'];
                                                        if ($t5_replies !== '') {
                                                            $count += count($t5_replies['data']['children']);
                                                            //Level 5
                                                        }
                                                    }
                                                }
                                            }
                                        }
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}

echo $count;