Check the purchased product expiration date in Woocommerce - php

Question

I have some code which check the purchased date of a product in woocommerce.
Here is the code:
function _cmk_check_ordered_product( $id ) {
// Get All order of current user
$orders = get_posts( array(
'numberposts' => -1,
'meta_key' => '_customer_user',
'meta_value' => get_current_user_id(),
'post_type' => wc_get_order_types( 'view-orders' ),
'post_status' => array_keys( wc_get_order_statuses() )
) );
if ( !$orders ) return false; // return if no order found
$all_ordered_product = array(); // store products ordered in an array
foreach ( $orders as $order => $data ) { // Loop through each order
$order_data = new WC_Order( $data->ID ); // create new object for each order
foreach ( $order_data->get_items() as $key => $item ) { // loop through each order item
// store in array with product ID as key and order date a value
$all_ordered_product[ $item['product_id'] ] = $data->post_date;
}
}
if ( isset( $all_ordered_product[ $id ] ) ) { // check if defined ID is found in array
return 'You purchased this product on '. date('M. d, Y', strtotime( $all_ordered_product[ $id ] ) );
} else {
return 'Product Never Purchased';
}
}
So it just check the purchase date. Now I need to check if the current date is less than 15 days from the purchase date and if it is I echo: "this product is expired".
I am thinking about using PHP Date for this, something like if ($date < strtotime('-15 days')). But I am stuck. What is the right direction? How can I solve it?
Any help is very appreciated.

Answer 1

Below is a light and effective SQL query where you will get what you are expecting (and more):
It will check that the product has been already bought
It will check that the purchase date has been made in the defined number of remaining days.
As a customer can purchase multiple times a same iteme (product), the function will take in account the last purchase item for a defined product ID.
The code:
function check_ordered_product( $product_id = 0, $days = 15, $user_id = 0 ) {
global $wpdb;
$customer_id = $user_id == 0 || $user_id == '' ? get_current_user_id() : $user_id;
$statuses = array_map( 'esc_sql', wc_get_is_paid_statuses() );
$time_n_days_ago = strtotime("-$days days");
$found = $valid = false;
// The query
$results = $wpdb->get_col( "
SELECT p.post_date FROM {$wpdb->prefix}posts AS p
INNER JOIN {$wpdb->prefix}postmeta AS pm ON p.ID = pm.post_id
INNER JOIN {$wpdb->prefix}woocommerce_order_items AS woi ON p.ID = woi.order_id
INNER JOIN {$wpdb->prefix}woocommerce_order_itemmeta AS woim ON woi.order_item_id = woim.order_item_id
WHERE p.post_status IN ( 'wc-" . implode( "','wc-", $statuses ) . "' )
AND pm.meta_key = '_customer_user'
AND pm.meta_value = $customer_id
AND woim.meta_key IN ( '_product_id', '_variation_id' )
AND woim.meta_value = $product_id
" );
if( count($results) > 0 ){
$found = true;
foreach( $results as $post_date ){
if( strtotime($post_date) > $time_n_days_ago ){
$valid = true;
break;
}
}
}
if ( $found && ! $valid ) {
$text = __( "This product has expired.", "woocommerce" );
} elseif ( $found && $valid ) {
$text = __( "This product is still valid.", "woocommerce" );
} else {
$text = __( "You have not purchased this product yet.", "woocommerce" );
}
echo '<p>'.$text.'</p>';
}
Usage (example) for a logged in user on front end.
For product ID 37 on past 15 days you will use:
check_ordered_product( 37, 15 );
It will display:
If product has been purchased after the 15 past days: This product has expired.
If product has been purchased before the 15 past days: This product is still valid.
If product has not been purchased yet: You have not purchased this product yet.
Related similar answer: WooCommerce - Check if user purchased a product in the past 60 days