woocommerce_price_filter_widget_min_amount │ filter-hook │ WC 1.0

Usage

add_filter( 'woocommerce_price_filter_widget_min_amount', 'wp_kama_woocommerce_price_filter_widget_min_amount_filter' );

/**
 * Function for `woocommerce_price_filter_widget_min_amount` filter-hook.
 * 
 * @param  $floor() * $step 
 *
 * @return 
 */
function wp_kama_woocommerce_price_filter_widget_min_amount_filter( $floor() * $step ){

	// filter...
	return $floor() * $step;
}

$floor() * $step

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Where the hook is called

$min_price = apply_filters( 'woocommerce_price_filter_widget_min_amount', floor( $min_price / $step ) * $step );

Where the hook is used in WooCommerce