EVOLUTION-MANAGER
Edit File: class-timezone.php
<?php /** * Sitemap date format class. * * @since 0.9.0 * @package RankMath * @subpackage RankMath\Sitemap * @author Rank Math <support@rankmath.com> * * @copyright Copyright (C) 2008-2019, Yoast BV * The following code is a derivative work of the code from the Yoast(https://github.com/Yoast/wordpress-seo/), which is licensed under GPL v3. */ namespace RankMath\Sitemap; use DateTime; use Exception; use DateTimeZone; defined( 'ABSPATH' ) || exit; /** * Timezone. */ class Timezone { /** * Format arbitrary UTC datetime string to desired form in site's time zone. * * @param string $datetime_string The input datetime string in UTC time zone. * @param string $format Date format to use. * * @return string */ public function format_date( $datetime_string, $format = DATE_W3C ) { if ( empty( $datetime_string ) || false === $this->is_valid_datetime( $datetime_string ) ) { return ''; } $date_time = new DateTime( $datetime_string, new DateTimeZone( 'UTC' ) ); return false === $date_time ? '' : $date_time->format( $format ); } /** * Check if a string is a valid datetime. * * @param string $datetime String input to check as valid input for DateTime class. * @return boolean */ private function is_valid_datetime( $datetime ) { if ( substr( $datetime, 0, 1 ) === '-' ) { return false; } try { return new DateTime( $datetime ) !== false; } catch ( Exception $exc ) { return false; } } }