SimplePie::get_authors(): SimplePie\array<Author>|null

2639    public function get_authors()2640    {2641        $authors = [];2642        foreach ((array) $this->get_channel_tags(self::NAMESPACE_ATOM_10, 'author') as $author) {2643            $name = null;2644            $uri = null;2645            $email = null;2646            if (isset($author['child'][self::NAMESPACE_ATOM_10]['name'][0]['data'])) {2647                $name = $this->sanitize($author['child'][self::NAMESPACE_ATOM_10]['name'][0]['data'], self::CONSTRUCT_TEXT);2648            }2649            if (isset($author['child'][self::NAMESPACE_ATOM_10]['uri'][0]['data'])) {2650                $uri = $author['child'][self::NAMESPACE_ATOM_10]['uri'][0];2651                $uri = $this->sanitize($uri['data'], self::CONSTRUCT_IRI, $this->get_base($uri));2652            }2653            if (isset($author['child'][self::NAMESPACE_ATOM_10]['email'][0]['data'])) {2654                $email = $this->sanitize($author['child'][self::NAMESPACE_ATOM_10]['email'][0]['data'], self::CONSTRUCT_TEXT);2655            }2656            if ($name !== null || $email !== null || $uri !== null) {2657                $authors[] = $this->registry->create(Author::class, [$name, $uri, $email]);2658            }2659        }2660        if ($author = $this->get_channel_tags(self::NAMESPACE_ATOM_03, 'author')) {2661            $name = null;2662            $url = null;2663            $email = null;2664            if (isset($author[0]['child'][self::NAMESPACE_ATOM_03]['name'][0]['data'])) {2665                $name = $this->sanitize($author[0]['child'][self::NAMESPACE_ATOM_03]['name'][0]['data'], self::CONSTRUCT_TEXT);2666            }2667            if (isset($author[0]['child'][self::NAMESPACE_ATOM_03]['url'][0]['data'])) {2668                $url = $author[0]['child'][self::NAMESPACE_ATOM_03]['url'][0];2669                $url = $this->sanitize($url['data'], self::CONSTRUCT_IRI, $this->get_base($url));2670            }2671            if (isset($author[0]['child'][self::NAMESPACE_ATOM_03]['email'][0]['data'])) {2672                $email = $this->sanitize($author[0]['child'][self::NAMESPACE_ATOM_03]['email'][0]['data'], self::CONSTRUCT_TEXT);2673            }2674            if ($name !== null || $email !== null || $url !== null) {2675                $authors[] = $this->registry->create(Author::class, [$name, $url, $email]);2676            }2677        }2678        foreach ((array) $this->get_channel_tags(self::NAMESPACE_DC_11, 'creator') as $author) {2679            $authors[] = $this->registry->create(Author::class, [$this->sanitize($author['data'], self::CONSTRUCT_TEXT), null, null]);2680        }2681        foreach ((array) $this->get_channel_tags(self::NAMESPACE_DC_10, 'creator') as $author) {2682            $authors[] = $this->registry->create(Author::class, [$this->sanitize($author['data'], self::CONSTRUCT_TEXT), null, null]);2683        }2684        foreach ((array) $this->get_channel_tags(self::NAMESPACE_ITUNES, 'author') as $author) {2685            $authors[] = $this->registry->create(Author::class, [$this->sanitize($author['data'], self::CONSTRUCT_TEXT), null, null]);2686        }2687 2688        if (!empty($authors)) {2689            return array_unique($authors);2690        }2691 2692        return null;2693    }