woocommerce_get_credit_card_type_label │ filter-hook │ WC 1.0

Usage

add_filter( 'woocommerce_get_credit_card_type_label', 'wp_kama_woocommerce_get_credit_card_type_label_filter' );

/**
 * Function for `woocommerce_get_credit_card_type_label` filter-hook.
 * 
 * @param  $labels[ $type ] 
 *
 * @return 
 */
function wp_kama_woocommerce_get_credit_card_type_label_filter( $labels[ $type ] ){

	// filter...
	return $labels[ $type ];
}

$labels[ $type ]

-

Where the hook is called

return apply_filters( 'woocommerce_get_credit_card_type_label', ( array_key_exists( $type, $labels ) ? $labels[ $type ] : ucfirst( $type ) ) );

Where the hook is used in WooCommerce