Custom Email is not sending on Order complete in WooCommerce

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I am facing a problem to send a custom email in WooCommerce.

Here is Error:

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Fatal error: Cannot use object of type WC_Order as array in
/home/wp-content/themes/structure/functions.php on line 548

My client want to send a custom email when everytime customer order and pay, besides the standard order confirmation email.

Here is my code: 

$order = new WC_Order( $order_id );

function order_completed( $order_id ) {
    $order = new WC_Order( $order_id );
    $to_email = $order["billing_address"];
    $headers = 'From: Your Name <your@email.com>' . "rn";
    wp_mail($to_email, 'subject', 'This is custom email', $headers );

}

add_action( 'woocommerce_payment_complete', 'order_completed' )

I also tried "woocommerce_thankyou" hook instead of "woocommerce_payment_complete" but is still not working.

I use WordPress version is 4.5.2 and WooCommerce version is 2.6.1.

Post Views: 1

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2 comments

  1. May be there is a problem with: $order->billing_address;… So we can have a different approach getting the current user email (not billing or shipping) with wp_get_current_user(); wordpress function. Then your code will be:

    add_action( 'woocommerce_payment_complete', 'order_completed_custom_email_notification' )
function order_completed_custom_email_notification( $order_id ) {
    $current_user = wp_get_current_user();
    $user_email = $current_user->user_email;
    $to = sanitize_email( $user_email );
    $headers = 'From: Your Name <your@email.com>' . "rn";
    wp_mail($to, 'subject', 'This is custom email', $headers );
}

    You can test before wp_mail() function replacing $user_email by your email like this:

    wp_mail('your.mail@your-domain.tld', 'subject', 'This is custom email', $headers );

    If you get the mail, the problem was coming from $to_email = $order->billing_address;.
    (Try it also with woocommerce_thankyou hook too).

    Last thing, you have to test all this on a hosted server, not with localhost on your computer. On localhost sending mails doesn’t work in most cases…

  2. Fatal error: Cannot use object of type WC_Order as array in
    /home/wp-content/themes/structure/functions.php on line 548

    This means that $object is an object and you need to use object notation such as $object->billing_address instead of array notation $object['billing_address']. The billing address object property will be defined when you call it by the magic __get() method of the WC_Order class, which really isn’t very different from LoicTheAztec’s approach above. 

    function order_completed( $order_id ) {
    $order = wc_get_order( $order_id );
    $to_email = $order->billing_address;
    $headers = 'From: Your Name <your@email.com>' . "rn";
    wp_mail($to_email, 'subject', 'This is custom email', $headers );
}
add_action( 'woocommerce_payment_complete', 'order_completed' );