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filter is not described

woocommerce_upsells_columns filter-hook . WC 1.0

Usage

add_filter( 'woocommerce_upsells_columns', 'filter_function_name_393' );
function filter_function_name_393( $args[columns] ){
	// filter...

	return $args[columns];
}
$args[columns]
-

Where the hook is called

woocommerce_upsell_display()
woocommerce_upsells_columns
woocommerce/includes/wc-template-functions.php 2056
wc_set_loop_prop( 'columns', apply_filters( 'woocommerce_upsells_columns', isset( $args['columns'] ) ? $args['columns'] : $columns ) );

Where in WP core the hook is used WooCommerce

Usage not found.