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How to Determine if a Customer Has Made a Purchase in WooCommerce?
How to Determine if a Customer Has Made a Purchase in WooCommerce?
Nov 25, 2024 pm 04:54 PM
How to Verify if a Customer Has Made a Purchase in WooCommerce
In WooCommerce, providing incentives to loyal customers who have previously purchased is a common practice. To effectively implement such strategies, it becomes necessary to verify if a customer has made any purchases before.
Checking Purchase History
To ascertain a customer's purchase history, WooCommerce provides a light and efficient conditional function called has_bought(). This function analyzes customer data to determine whether they have previously made a purchase.
The function handles both registered users and guests:
- Registered users: If no user ID is specified, the function uses the ID of the currently logged-in user.
- Guests: For guests, the function requires their billing email as an argument.
Implementing the Function
function has_bought( $value = 0 ) {
if ( ! is_user_logged_in() && $value === 0 ) {
return false;
}
global $wpdb;
// Based on user ID (registered users)
if ( is_numeric( $value) ) {
$meta_key = '_customer_user';
$meta_value = $value == 0 ? (int) get_current_user_id() : (int) $value;
}
// Based on billing email (Guest users)
else {
$meta_key = '_billing_email';
$meta_value = sanitize_email( $value );
}
$paid_order_statuses = array_map( 'esc_sql', wc_get_is_paid_statuses() );
$count = $wpdb->get_var( $wpdb->prepare("
SELECT COUNT(p.ID) FROM {$wpdb->prefix}posts AS p
INNER JOIN {$wpdb->prefix}postmeta AS pm ON p.ID = pm.post_id
WHERE p.post_status IN ( 'wc-" . implode( "','wc-", $paid_order_statuses ) . "' )
AND p.post_type LIKE 'shop_order'
AND pm.meta_key = '%s'
AND pm.meta_value = %s
LIMIT 1
", $meta_key, $meta_value ) );
// Return a boolean value based on orders count
return $count > 0;
}
Usage Examples
Logged-in Customer:
if( has_bought() )
echo '<p>You have already made a purchase</p>';
else
echo '<p>Welcome, for your first purchase you will get a discount of 10%</p>';
Guest with Billing Email:
$email = '[email protected]';
if( has_bought( $email ) )
echo '<p>customer have already made a purchase</p>';
else
echo '<p>Customer with 0 purchases</p>'The above is the detailed content of How to Determine if a Customer Has Made a Purchase in WooCommerce?. For more information, please follow other related articles on the PHP Chinese website!
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