Add WooCommerce SKU to auto-generated titles for The SEO Framemework

woocommerce-sku-tsf.php

<?php
// Don't include the PHP tag if PHP is already opened in the file.



add_filter( 'the_seo_framework_title_from_generation', function( $title, $args ) {

	if ( ! function_exists( 'wc' ) ) return $title;

	if ( null === $args ) {
		$product = the_seo_framework()->is_product() ? wc_get_product() : '';
	} else {
		$product = the_seo_framework()->is_product( $args['id'] ) ? wc_get_product( $args['id'] ) : '';
	}

	if ( is_a( $product, '\WC_Product' ) && method_exists( $product, 'get_sku' ) ) {
		$sku = $product->get_sku();
		if ( strlen( $sku ) ) {
			// TSF will sanitize.
			$title = "$sku &ndash; $title";
		}
	}

	return $title;
}, 10, 2 );