Display ACF values from an array with %customfield()%

Hello,

Thank you for your query and we are so sorry about the trouble this must have caused.

With that variable, you can only output the values of text fields or other similar ones that include string values in the database.

To output the data from more advanced fields you would need to create a custom variable using the following filter: https://rankmath.com/kb/filters-hooks-api-developer/#add-extra-variables

The callback function would be responsible for performing the necessary calls and checks using PHP and then returning the values you need.

Here’s an example of using this function to get the price of a WooCommerce product dynamically and associate it with the variable %price%:

add_action( 'rank_math/vars/register_extra_replacements', function(){
    rank_math_register_var_replacement(
        'price', [
            'name'        => esc_html__( 'Price', 'rank-math' ),
            'description' => esc_html__( 'Output the price of the product', 'rank-math' ),
            'variable'    => 'price',
            'example'     => price_callback(),
        ],
        'price_callback'
    );
});

function price_callback() {
    $product = wc_get_product(get_queried_object_id());

    if( $product ) {
        $price_vat = wc_get_price_including_tax( $product );
        $price = number_format($price_vat, 2);
    }

    return $price;
}

Don’t hesitate to get in touch if you have any other questions.