WordPress at a glance
action is not described

woocommerce_credit_card_form_start action-hook . WC 1.0

Usage

add_action( 'woocommerce_credit_card_form_start', 'action_function_name_5352' );
function action_function_name_5352( $id ){
	// action...
}
$id
-

Where the hook is called

WC_Payment_Gateway_CC::form()
woocommerce_credit_card_form_start
woocommerce/includes/gateways/class-wc-payment-gateway-cc.php 84
<?php do_action( 'woocommerce_credit_card_form_start', $this->id ); ?>

Where in WP core the hook is used WooCommerce

Usage not found.