Почему берутся только новые товары?

<?php
$settings = parse_ini_file(__DIR__ . '/settings.ini');
function request( $url, $input = [] ) {
    $ch = curl_init();
    $opts = [
        CURLOPT_URL         => $url,
        CURLOPT_USERAGENT   => 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36',
        CURLOPT_SSL_VERIFYPEER => 0,
        CURLOPT_SSL_VERIFYHOST => 0,
        CURLOPT_RETURNTRANSFER => 1,
    ];
    curl_setopt_array($ch, $opts);
    if( isset($input['post']) ) {
        curl_setopt($ch, CURLOPT_POST, 1);
        if( isset($input['postfields']) ) {
            #$opts[CURLOPT_POSTFIELDS] = $input['postfields'];
            curl_setopt($ch, CURLOPT_POSTFIELDS, $input['postfields']);
        }
    }
    $result = curl_exec($ch);
    curl_close($ch);
    return $result;
}

header('Content-type: text/plain; charset=utf-8');
require_once __DIR__ . '/inc/boot.php';
require_once __DIR__ . '/inc/EPN_Link.php';
$done = file_get_contents(__DIR__ . '/complete.links');
$content = file_get_contents( $settings['ali']['url'] );
#file_put_contents('ali.html', $content);
#$content = file_get_contents('ali.html');
require __DIR__ . '/inc/phpQuery-onefile.php';
$links = [];
$doc = phpQuery::newDocument($content);
foreach(pq('li.list-item') as $li) {
    $el = pq($li);
    $link = [];
    $link['url'] = 'http:' . $el->find('a.product')->attr('href') . PHP_EOL;
    $link['img'] = '';
    $im_el = pq($el->find('img.picCore'));
    if( $im_el->attr('src') ) {
        $link['img'] = 'http:' . $im_el->attr('src');
    }elseif( $im_el->attr('image-src') ) {
        $link['img'] = 'http:' . $im_el->attr('image-src');
    }else continue;
    $link['text'] = $el->find('a.product')->text();
    $link['id'] = $el->find('a.atwl-button')->attr('data-product-id');
    $links []= $link;
}
foreach( $links as $link ) {
    if( mb_strpos($done, $link['id'] . '-') !== FALSE ) {
        echo $link['id'] . ' already done' . PHP_EOL;
        continue;
    }
    if( $post = createPost($link) ) {
        echo 'Post #' . $post . ' Created' . PHP_EOL;
        file_put_contents(__DIR__ . '/complete.links', $link['id'] . '-' . PHP_EOL, FILE_APPEND);
        break;
    }
}
function createPost( $link ) {
    global $settings;
    $img = file_put_contents('photo.jpg', file_get_contents($link['img']));
    // EPN
    $epn = new EPN_Link($settings['epn']['login'], $settings['epn']['password']);
    $epn_link = $epn->create($link['text'], $link['url']);
    $epn_link = $epn->shortLink($epn_link);
    if( !$epn_link ) {
        echo 'Bad EPN Link' . PHP_EOL;
        return false;
    }
    // Saving VK post
    $response = request('https://api.vk.com/method/photos.getWallUploadServer?' . http_build_query([
            'group_id'      => str_replace('-', '', $settings['vk']['group']),
            'access_token'  => $settings['vk']['token'],
            'v'             => '5.68'
        ]));
    if( !$json = json_decode($response) ) {
        echo '[error] Cannot get upload server : ' . $response . PHP_EOL;
        return false;
    }
    if( !isset($json->response->upload_url) ) {
        echo '[error] Cannot get upload server : ' . $response . PHP_EOL;
        return false;
    }
    $upload_server = $json->response->upload_url;
    $file = new CURLFile(realpath(__DIR__ . '/photo.jpg'));
    $ch = curl_init($upload_server);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
    curl_setopt($ch, CURLOPT_POST, 1);
    curl_setopt($ch, CURLOPT_POSTFIELDS, array(
        'photo' => $file
    ));
    $upload_data = curl_exec($ch);
    curl_close($ch);
    if( !$json = json_decode($upload_data) ) {
        echo '[error] Upload bad response : ' . $upload_data . PHP_EOL;
        return false;
    }
    if( !isset($json->photo) || empty($json->photo) || $json->photo == '[]') {
        echo '[error] Empty photos';
        return false;
    }
    $response = request('https://api.vk.com/method/photos.saveWallPhoto?' . http_build_query([
            'server'        => $json->server,
            'photo'         => $json->photo,
            'hash'          => $json->hash,
            'group_id'      => str_replace('-', '', $settings['vk']['group']),
            'access_token'  => $settings['vk']['token'],
            'v'             => '5.68'
        ]));
    if( !$json = json_decode($response) ) {
        echo '[error] Save photo error : ' . $response . PHP_EOL;
        return false;
    }
    $url = 'https://api.vk.com/method/wall.post?' . http_build_query([
            'access_token'  => $settings['vk']['token'],
            'v'             => '5.68'
        ]);
    $params = [
        'owner_id'      => $settings['vk']['group'],
        'from_group'    => 1,
        'message'       => 'Купить - ' . $epn_link, //$links[0]['text'],
        'attachments'   => 'photo' . $json->response[0]->owner_id . '_' . $json->response[0]->id// . ',' . $epn_link
    ];
    $response = request( $url , [
        'post'          => 1,
        'postfields'    => $params
    ] );
    if( !$json = json_decode($response) ) {
        echo '[error] Post not created : ' . $response . PHP_EOL;
        return false;
    }
    if( !isset($json->response->post_id) ) {
        echo '[error] Post ID not found : ' . $response . PHP_EOL;
        return false;
    }
    return $json->response->post_id;
}