Edit File: Time.php
<?php /** * Time Utility * * @package PUM * @copyright Copyright (c) 2023, Code Atlantic LLC */ if ( ! defined( 'ABSPATH' ) ) { exit; } /** * Class PUM_Utils_Time */ class PUM_Utils_Time { public static function is_timestamp( $timestamp ) { return ( 1 === preg_match( '~^[1-9][0-9]*$~', $timestamp ) ); } }