woocommerce_variation_options │ action-hook │ WC 1.0

Usage

add_action( 'woocommerce_variation_options', 'wp_kama_woocommerce_variation_options_action', 10, 3 );

/**
 * Function for `woocommerce_variation_options` action-hook.
 * 
 * @param  $loop           
 * @param  $variation_data 
 * @param  $variation      
 *
 * @return void
 */
function wp_kama_woocommerce_variation_options_action( $loop, $variation_data, $variation ){

	// action...
}

$loop

-

$variation_data

-

$variation

-

Where the hook is called

<?php do_action( 'woocommerce_variation_options', $loop, $variation_data, $variation ); ?>

Where the hook is used in WooCommerce