mypmpro-woo-discount-variable-pricing.php

<?php //do not copy

/**
 * This recipe will either add a fee or discount to specific variations of a Woo
 * product based on the level that the user holds.
 * 
 * In the below example, variation ID 107 should have level 1 and a fee of 1500 will be added. 
 * Variation ID 108 requires a level 2 and applies a discount of 8
 * 
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */
function mypmpro_adjusted_woo_variation_discounts( $discount_price, $lowest_price_level, $price, $product ) {
	
	$pmpro_variation_levels = array(
		//Set 107 to the variation ID, level to the level ID required, and the amount to ADD
		107 => array( 'level' => 1, 'amount' => 1500 ),
		//Set 108 to the variation ID, level to the level ID required, and the discount to DEDUCT
		108 => array( 'level' => 2, 'discount' => 8 ),
	);

	if( $product->is_type( 'variation' ) ) {
		$variation_id = $product->get_id();
		if( isset( $pmpro_variation_levels[$variation_id] ) ) {
			if( pmpro_hasMembershipLevel( $pmpro_variation_levels[$variation_id]['level'] ) ) {
				if( isset( $pmpro_variation_levels[$variation_id]['amount'] ) ) {
					return $price + $pmpro_variation_levels[$variation_id]['amount'];
				} else if( isset( $pmpro_variation_levels[$variation_id]['discount'] ) ) {
					return $price - $pmpro_variation_levels[$variation_id]['discount'];
				}
			}
		}
	}	
	return $discount_price;
}
add_filter( 'pmprowoo_get_membership_price', 'mypmpro_adjusted_woo_variation_discounts', 10, 4 );