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| <?php
| namespace JVBase\managers\SEO\render\Traits\_Properties;
|
| if (!defined('ABSPATH')) {
| exit;
| }
| trait issnTrait {
| /**
| * @var string The International Standard Serial Number (ISSN) that identifies this serial publication. You can repeat this property to identify different formats of, or the linking ISSN (ISSN-L) for, this serial publication.
| */
| protected string $issn;
|
| public function getIssn():?string
| {
| return $this->issn??null;
| }
| public function setIssn(string $issn):void
| {
| $this->issn = $issn;
| }
| }
|
|
