获取具有非唯一元密钥的特定WooCommerce订单项元数据

我使用的是在wooccommerce 3中获取订单项目的元数据答案代码：

// 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>';
}

我需要在下面的数组中提取，下面的信息用[key]分隔：

carbidrato

[key]=>Carboidrato
[value]=>Arroz Branco COM Feijão
[key]=>Carboidrato
[value]=>Arroz IntegralàGrega COM Feijão
[key]=>Carboidrato
[value]=>Macarrão Alho Poró

蛋白质

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

GUARNIÇâO

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

阵列：

由于您想要的订单项元数据没有唯一的元密钥(多次使用(，您将使用WC_Order_Itemget_formatted_meta_data()方法，以获得格式化为数组的自定义订单项元数据，如下所示：

// 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>';
}

测试并工作。

自定义格式化数组的原始数据显示如下：

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
)
)

有关信息：当您想要的订单项目元数据具有唯一的元密钥时，您将使用WC_Dataget_meta()方法，如下所示：

// 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>';
}

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