Discount on specific products based on a daily time range in Woocommerce

问题

On my WooCommerce website, I am trying to make have a "Lunch Special" daily event. This means that from 11h00 to 15h00, specific products would be discounted due to this "Lunch Special" daily event.

I would like this "Lunch Special" event to reoccur every day of the week.

How could this be achieved?

I have searched this online and I only found plugins that could restrict items per day, not during a specific time period.

Any help is appreciated.

回答1:

The code below will make a price discount (enabling a calculated sale price from the regular price) on selected product ids each day between 11h00 and 15h00.

You will have to set:

The correct time zone (Find yours in here)
The discount rate to be applied
The daily start and end time
The array of related product Ids to be daily discounted during the period

The code:

// Utility function that gives the discount daily period and the discount rate
function get_discount_period_rate(){
    // Set the correct time zone  (http://php.net/manual/en/timezones.php)
    date_default_timezone_set('Europe/Paris');

    // Set the discount rate
    $rate = 0.8; // <== 20 %

    // Set the start time and the end time
    $start_time = mktime( 11, 00, 00, date("m")  , date("d"), date("Y") );
    $end_time   = mktime( 15, 00, 00, date("m")  , date("d"), date("Y") );
    $time_now   = strtotime("now");

    // Return the rate during allowed discount the period or false outside the period
    return $start_time <= $time_now && $end_time > $time_now ? $rate : false;
}

// Enable calculated on sale price from the regular price and the rate
add_filter( 'woocommerce_product_variation_get_sale_price', 'periodic_discount_prices', 99, 3 );
add_filter( 'woocommerce_product_variation_get_price', 'periodic_discount_prices', 99, 3 );
add_filter( 'woocommerce_variation_prices_sale_price', 'periodic_discount_prices', 99, 3 );
add_filter( 'woocommerce_variation_prices_price', 'periodic_discount_prices', 99, 3 );
add_filter( 'woocommerce_product_get_sale_price', 'periodic_discount_prices', 99, 3 );
add_filter( 'woocommerce_product_get_price', 'periodic_discount_prices', 99, 3 );
function periodic_discount_prices( $price, $product, $parent = 0 ){
    // Set the product Ids that will be discounted
    $discounted_products = array( 37, 41, 53 );

    if( get_discount_period_rate() && in_array( $product->get_id(), $discounted_products ) ){
        $price = $product->get_regular_price() * get_discount_period_rate();
    }
    return $price;
}

// Handling variation prices caching
add_filter( 'woocommerce_get_variation_prices_hash', 'add_rate_to_variation_prices_hash', 99, 1 );
function add_rate_to_variation_prices_hash( $hash ) {
    if( get_discount_period_rate() )
        $hash[] = get_discount_period_rate();
    return $hash;
}

Code goes in function.php file of the active child theme (or active theme). Tested and works.

来源：https://stackoverflow.com/questions/53024563/discount-on-specific-products-based-on-a-daily-time-range-in-woocommerce

标签

php

wordpress

time

woocommerce

discount