Меняем дату публикации записи на дату обновления записи в Yoast SEO 14 +

wpseo-open-graph-article-published-time.php

<?php
use Yoast\WP\SEO\Presenters\Abstract_Indexable_Tag_Presenter;

/**
 * Debug microdata.
 */
add_filter( 'yoast_seo_development_mode', '__return_true' );

/**
 * Change datePublished to dateModified in microdata
 */
add_filter(
	'wpseo_schema_webpage',
	function ( $data ) {

		$data['datePublished'] = get_the_modified_date( 'c' );

		return $data;
	}
);

/**
 * Disable default tag `article:published_time`.
 */
add_filter(
	'wpseo_frontend_presenter_classes',
	function ( $filter ) {

		if ( ( $key = array_search('Yoast\WP\SEO\Presenters\Open_Graph\Article_Published_Time_Presenter', $filter ) ) !== false ) {

			unset( $filter[ $key ] );
		}

		return $filter;
	}
);

/**
 * Register custom presenter class for Yoast.
 */
add_filter(
	'wpseo_frontend_presenters',
	function ( $presenters ) {
		$presenters[] = new My_Custom_Presenter();

		return $presenters;
	}
);

/**
 * Register our meta tag `article:published_time`.
 */
add_action(
	'plugins_loaded',
	function() {

		/**
		 * Adds a custom my:property.
		 */
		class My_Custom_Presenter extends Abstract_Indexable_Tag_Presenter {

			/**
			 * The tag format including placeholders.
			 *
			 * @var string
			 */
			protected $tag_format = '<meta property="article:published_time" content="%s" />';

			/**
			 * Returns the value of our new tag.
			 *
			 * @return string The value of our meta tag.
			 */
			public function get() {
				return $this->presentation->open_graph_article_modified_time;
			}
		}
	}
);

// eol.