Get specific WooCommerce order item metadata with non unique meta keys

Question

I am using Get the metadata of an order item in woocommerce 3 answer code:

// Get the $order object from an ID (if needed only)
$order = wc_get_order( $order_id);

// Loop through order line items
foreach( $order->get_items() as $item ){
    // get order item data (in an unprotected array)
    $item_data = $item->get_data();

    // get order item meta data (in an unprotected array)
    $item_meta_data = $item->get_meta_data();

    // get only All item meta data even hidden (in an unprotected array)
    $formatted_meta_data = $item->get_formatted_meta_data( '_', true );

    // Display the raw outputs (for testing)
    echo '<pre>'; print_r($item_meta_data); echo '</pre>';
    echo '<pre>'; print_r($formatted_meta_data); echo '</pre>';
}

I need to extract in below array, the follow info separated by [key]:

CARBOIDRATO

[key] => Carboidrato
[value] => Arroz Branco COM Feijão
[key] => Carboidrato
[value] => Arroz Integral à Grega COM Feijão
[key] => Carboidrato
[value] => Macarrão Alho Poró

PROTEINA

[key] => Proteína
[value] => Parmegiana Bovina
[key] => Proteína
[value] => Parmegiana Frango

GUARNIÇÃO

[key] => Guarnição
[value] => Batata Rosthi Recheada com Requeijão
[key] => Guarnição
[value] => Farofa

Arrays:

LoicTheAztec · Accepted Answer · 2020-12-09T17:08:49.013

As the order item meta data that you want has not a unique meta key (used multiple times), you will use WC_Order_Item get_formatted_meta_data() method, to get your custom order item meta data formatted in an array, as follows:

// Get the $order object from an ID (if needed only)
$order = wc_get_order( $order_id);

$data_output = array(); // Initializing

// Loop through order line items
foreach( $order->get_items() as $item ){
    // get only All item meta data even hidden (in an unprotected array)
    $formatted_meta_data = $item->get_formatted_meta_data( '_', true );


    // Loop through order item custom meta data
    foreach( $formatted_meta_data as $meta_data ){
        // Targettting specific meta data (meta keys)
        if( in_array( $meta_data->key, array('Carboidrato', 'Proteína', 'Guarnição') ) ) {
            // Set data in a formated multidimensional array
            $data_output[$meta_data->key][] = $meta_data->value;
        }
    }
}

## 1. Raw output (for testing): values grouped by metakey
echo '<pre>'; print_r($data_output); echo '</pre>';

## 2. Html Output (display): values grouped by metakey

// Loop through metakey / value pairs
foreach( $data_output as $key => $values ){
    echo '<strong>' .strtoupper($key) . '</strong><br>';

    echo '<ul>';

    // Loop through values for the same meta key
    foreach( $values as $value ) {
        echo '<li>' . $value . '</li>';
    }
    echo '</ul>';
}

Tested and works.

Raw data display for your custom formatted array will be like:

Array
(
    [Carboidrato] => Array
        (
            [0] => Arroz Branco COM Feijão
            [1] => Arroz Integral à Grega COM Feijão
            [2] => Macarrão Alho Poró
        )

    [Proteína] => Array
        (
            [0] => Parmegiana Bovina
            [1] => Parmegiana Frango
        )

    [Guarnição] => Array
        (
            [0] => Batata Rosthi Recheada com Requeijão
            [1] => Farofa
        )

)

For info: when the Order item meta data that you want has unique meta keys, you will use instead the WC_Data get_meta() method as follows:

// Get the $order object from an ID (if needed only)
$order = wc_get_order( $order_id);

// Loop through order line items
foreach( $order->get_items() as $item ){
    // get specific order item data value from specific meta key
    $carboidrato = $item->get_meta('Carboidrato');

   // Output value for that metakey
   echo '<p>' . __('Carboidrato') . ': ' . $carboidrato . '</p>';
}

Get specific WooCommerce order item metadata with non unique meta keys

1 Answers1