placeholders like %wc_size% & %product_cat%

Hello

Please add below code in your theme’s functions.php file:

/**
 * Filter to replace wc_brand with custom value.
 */
add_filter( 'rank_math/replacements', function( $replacements ) {
	if ( is_singular( 'product' ) ) {
		$product = wc_get_product();

		// Product Brand
		if ( isset( $replacements['%wc_brand%'] ) ) {
			$brand = $product->get_attribute('pa_brand');
			// Use this code to get 1st element from brand attribute if multiple brands are assigned to a Product.
			$brands = explode( ',', $brand );
			if ( ! empty( $brands ) ) {
				$brand = $brands[0];
			}

			$replacements['%wc_brand%'] = $brand; // Pass $brand to set meta value for brand.
		}

		// Product Size
		if ( isset( $replacements['%wc_size%'] ) ) {
			$size = $product->get_attribute('pa_size');
			// Use this code to get 1st element from size attribute if multiple sizes are assigned to a Product.
			$sizes = explode( ',', $size );
			if ( ! empty( $sizes ) ) {
				$size = $sizes[0];
			}

			$replacements['%wc_size%'] = $size; // Pass $size to set meta value for brand.
		}

		// Product Category
		if ( isset( $replacements['%product_category%'] ) ) {
			$size = $product->get_attribute('pa_size');
			// Use this code to get 1st element from size attribute if multiple sizes are assigned to a Product.
			$sizes = explode( ',', $size );
			if ( ! empty( $sizes ) ) {
				$size = $sizes[0];
			}

			$replacements['%wc_size%'] = wp_get_post_terms( get_the_ID(), 'product_cat', array( 'fields' => 'names', 'number' => 1 ) )[0];
		}
		
	}
	return $replacements;
});

/**
 * Filter to add custom variables
 */
add_filter( 'rank_math/vars/replacements', function( $vars ) {
	global $product;
	if ( ! $product ) {
		return $vars;
	}

	// Product Category
	$vars['product_category'] = [
		'name'    => 'Product\'s Category',
		'desc'    => 'Current Product Category',
		'example' => wp_get_post_terms( $_GET['post'], 'product_cat', array( 'fields' => 'names', 'number' => 1 ) )[0],
	];

	// Product Size
	$size = $product->get_attribute('pa_size');
	// Use this code to get 1st element from brand attribute if multiple brands are assigned to a Product.
	$sizes = explode( ',', $size );
	if ( ! empty( $sizes ) ) {
		$size = $sizes[0];
	}
	$vars['wc_size'] = [
		'name'    => 'Product\'s Size',
		'desc'    => 'Current Product Size',
		'example' => $size
	];

	// Proudct Brand.
	if ( isset( $vars['wc_brand'] ) ) {
		$brand = $product->get_attribute('pa_brand');

		// Use this code to get 1st element from brand attribute if multiple brands are assigned to a Product.
		$brands = explode( ',', $brand );
		if ( ! empty( $brands ) ) {
			$brand = $brands[0];
		}
		
		$vars['wc_brand']['example'] = $brand;
	}

	return $vars;
});

After adding this code you will see 2 new variables in variable list %product_category% & %wc_size%.

Hope that helps. Thank you.

Hello,

The code will show the new variables only in Product Post type posts.

If you could share your WP logins, I would love to take a look and fix it for you.

Looking forward to helping you. Thank you.

Hello,

I see you’ve only given us access to the Rank Math settings. Like I mentioned above, the code I gave you will only work on the Product page. Please Navigate to Dashboard >> Products and edit any product and see if those new variables are added.

Hope that helps. Thank you.