SimplePie::get_image_url(): string|null

3056    public function get_image_url()3057    {3058        if ($return = $this->get_channel_tags(self::NAMESPACE_ITUNES, 'image')) {3059            return $this->sanitize($return[0]['attribs']['']['href'], self::CONSTRUCT_IRI);3060        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_ATOM_10, 'logo')) {3061            return $this->sanitize($return[0]['data'], self::CONSTRUCT_IRI, $this->get_base($return[0]));3062        } elseif ($return = $this->get_channel_tags(self::NAMESPACE_ATOM_10, 'icon')) {3063            return $this->sanitize($return[0]['data'], self::CONSTRUCT_IRI, $this->get_base($return[0]));3064        } elseif ($return = $this->get_image_tags(self::NAMESPACE_RSS_10, 'url')) {3065            return $this->sanitize($return[0]['data'], self::CONSTRUCT_IRI, $this->get_base($return[0]));3066        } elseif ($return = $this->get_image_tags(self::NAMESPACE_RSS_090, 'url')) {3067            return $this->sanitize($return[0]['data'], self::CONSTRUCT_IRI, $this->get_base($return[0]));3068        } elseif ($return = $this->get_image_tags(self::NAMESPACE_RSS_20, 'url')) {3069            return $this->sanitize($return[0]['data'], self::CONSTRUCT_IRI, $this->get_base($return[0]));3070        }3071 3072        return null;3073    }