Adds sitename, month, and year generation tags for The SEO Framework. Requires PHP 7+

dynamic-tsf-tags.php

<?php
// Don't include the PHP tag is PHP is already running.


add_filter( 'the_seo_framework_title_from_custom_field', 'my_transform_dynamic_tags' );
add_filter( 'the_seo_framework_custom_field_description', 'my_transform_dynamic_tags' );
function my_transform_dynamic_tags( $tag ) {

	// Cache keys, for this method is inefficient.
	static $keys = null;
	
	// Add more keys as needed.
	$keys = $keys ?? [
		'%sitename%' => get_bloginfo( 'name' ),
		'%month%'    => function_exists( 'wp_date' ) ? wp_date( 'F' ) : date_i18n( 'F' ),
		'%year%'     => function_exists( 'wp_date' ) ? wp_date( 'Y' ) : date_i18n( 'Y' ),
	];

	foreach ( $keys as $key => $value ) {
		if ( false !== strpos( $tag, $key ) ) {
			$tag = str_replace( $key, $value, $tag );
		}
	}

	return $tag;
}