Add placeholder text to Name Your Price inputs

nyp-placeholder.php

/**
 * Modify NYP price input's placeholder.
 * 
 * @param  array $attributes The array of attributes for the NYP div
 * @param  obj $product WC_Product The product object
 * @param  string $suffix - needed for grouped, composites, bundles, etc.
 * @return string
 * @return string - The modified input html.
 */
function kia_custom_nyp_placeholder( $attributes, $product, $suffix ) {
    $attributes['placeholder'] = __( 'Enter price here', 'your-text-domain' );
    return $attributes;
}
add_filter( 'wc_nyp_price_input_attributes', 'kia_custom_nyp_placeholder', 10, 3 );

This doesn't seem to work any more.

@captainhook As of NYP 3, it's preferred to use the wc_nyp_price_input_attributes filter. See the updated gist. If you still have issues, please open a support ticket at https://woocommerce.com/my-account/create-a-ticket/