WordPress at a glance
filter is not described

woocommerce_downloadable_file_exists filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_downloadable_file_exists', 'filter_function_name_4880', 10, 2 );
function filter_function_name_4880( $file_exists, $file ){
	// filter...

	return $file_exists;
}
$file_exists
-
$file
-

Where the hook is called

WC_Product_Download::file_exists()
woocommerce_downloadable_file_exists
woocommerce/includes/class-wc-product-download.php 123
return apply_filters( 'woocommerce_downloadable_file_exists', file_exists( $file_url ), $this->get_file() );

Where in WP core the hook is used WooCommerce

Usage not found.