WordPress at a glance
filter is not described

woocommerce_register_log_handlers filter-hook . WC 1.0

Constructor for the logger.

Usage

add_filter( 'woocommerce_register_log_handlers', 'filter_function_name_1123' );
function filter_function_name_1123( $handlers ){
	// filter...

	return $handlers;
}
$handlers(array)
Optional. Array of log handlers. If $handlers is not provided, the filter 'woocommerce_register_log_handlers' will be used to define the handlers. If $handlers is provided, the filter will not be applied and the handlers will be used directly.

Where the hook is called

WC_Logger::__construct()
woocommerce_register_log_handlers
woocommerce/includes/class-wc-logger.php 41
$handlers = apply_filters( 'woocommerce_register_log_handlers', array() );

Where in WP core the hook is used WooCommerce

woocommerce/includes/wc-core-functions.php 2065
add_filter( 'woocommerce_register_log_handlers', 'wc_register_default_log_handler' );