Adjust the quantity input values

商品ページの数量入力フィールドの開始値、最大値、最小値、インクリメント量を設定します。

if ( ! function_exists( 'YOUR_PREFIX_woocommerce_quantity_input_args' ) ) {
    /**
     * Adjust the quantity input values for simple products
     */
    function YOUR_PREFIX_woocommerce_quantity_input_args( $args, $product ) {
        // Only affect the starting value on product pages, not the cart
        if ( is_singular( 'product' ) ) {
            $args['input_value'] = 4;
        }

        $args['max_value'] 	= 10; // Maximum value
        $args['min_value'] 	= 2;  // Minimum value
        $args['step'] 		= 2;  // Quantity steps

        return $args;
    }

    add_filter( 'woocommerce_quantity_input_args', 'YOUR_PREFIX_woocommerce_quantity_input_args', 10, 2 );
}

if ( ! function_exists( 'YOUR_PREFIX_woocommerce_available_variation' ) ) {
    /**
     * Adjust the quantity input values for variations
     */
    function YOUR_PREFIX_woocommerce_available_variation( $args ) {
        $args['max_qty'] = 20; // Maximum value (variations)
        $args['min_qty'] = 2;  // Minimum value (variations)

        // Note: the starting value and step for variations is controlled
        // from the 'woocommerce_quantity_input_args' filter shown above for
    // simple products

        return $args;
    }

    add_filter( 'woocommerce_available_variation', 'YOUR_PREFIX_woocommerce_available_variation' );
}

If you are looking for a little more power, check out our Min/Max Quantities extension!

adjust-quantity-input-values

Adjust the quantity input values