访问WooCommerce挂钩中的客户自定义用户元数据

Question

这个问题与user_register挂钩有关

我需要在wooccommerce上的用户注册表上添加一些额外的字段我使用了自定义用户注册字段-WooCommerce插件

我的问题是，如何使用add_action钩子访问这些添加字段的值？

这就是我迄今为止所做的，

add_action( 'user_register', 'new_contact', 10, 3 );
function new_contact( $user_id ) {
if ( isset( $_POST['first_name'] ) )
update_user_meta($user_id, 'first_name', $_POST['first_name']);
$customer = new WC_Customer( $user_id );
echo $customer;

wp_die();

}

以下是回声输出：

{
"id":12,
"date_created":{"date":"2020-07-27 16:58:52.000000","timezone_type":1,"timezone":"+00:00"},
"date_modified":null,
"email":"[e-mail]",
"first_name":""
,"last_name":"",
"display_name":"c",
"role":"customer",
"username":"c",
"billing":{"first_name":"","last_name":"","company":"","address_1":"","address_2":"","city":"","postcode":"","country":"","state":"","email":"","phone":""},
"shipping":{"first_name":"","last_name":"","company":"","address_1":"","address_2":"","city":"","postcode":"","country":"","state":""},
"is_paying_customer":false,
"meta_data":[
{"id":516,"key":"afreg_additional_1564","value":"c"},
{"id":517,"key":"afreg_additional_1565","value":"c"},
{"id":518,"key":"afreg_additional_1566","value":"c"},
{"id":519,"key":"afreg_additional_1555","value":"c"},
{"id":520,"key":"afreg_additional_1556","value":"c"},
{"id":521,"key":"afreg_additional_1557","value":"c"},
{"id":522,"key":"afreg_additional_1558","value":"California"},
{"id":523,"key":"afreg_additional_1559","value":"c"},
{"id":524,"key":"afreg_additional_1560","value":"6181001010"},
{"id":525,"key":"afreg_additional_1561","value":"c"},
{"id":526,"key":"_yoast_wpseo_profile_updated","value":"1595894332"}
]
}

我能看到的是，我添加的自定义字段存储在"meta_ data">

如何将每个值存储在一个变量中？

Answer 1

您可以使用WC_Customer对象上的WC_Data方法访问此meta data，如：

• get_meta_data()以获得未受保护的WC_Meta_Data对象数组
• get_meta($meta_key)从特定元密钥获取值

要从WC_Meta_Data对象访问数据，您将使用get_data()方法。

下面是代码的工作示例：

$user_id  = 12; // For user ID 12
// Get an instance of the WC_Customer Object from user Id
$customer = new WC_Customer( $user_id );
// Get the meta value from a specific meta key
$meta_value = $customer->get_meta('afreg_additional_1558');
echo 'Value: ' . $meta_value . '<br>'; //Display the value
// Get an unprotected array of `WC_Meta_Data` objects
$user_meta_data = $customer->get_meta_data();
// Loop through `WC_Meta_Data` objects
foreach( $customer->get_meta_data() as $meta_data ){
// get an unprotected array of the current WC_Meta_Data object data
$meta_data_array = $meta_data->get_data();

$meta_key   = $meta_data_array['key']; // The meta key
$meta_value = $meta_data_array['value']; // The meta value
$meta_value = is_array($meta_value) ? implode(' | ', $meta_value) : $meta_value;

// Testing output
echo $meta_key  . ': ' . $meta_value . '<br>';
}

所以在你的功能中：

add_action( 'user_register', 'new_contact', 10, 3 );
function new_contact( $user_id ) {
if ( isset( $_POST['first_name'] ) )
update_user_meta($user_id, 'first_name', $_POST['first_name']);
// Get an instance of the WC_Customer Object from user Id
$customer = new WC_Customer( $user_id );

// Get the meta value from a specific meta key
$meta_value = $customer->get_meta('afreg_additional_1558');
echo 'Value: ' . $meta_value . '<br>'; //Display the value

// Get an unprotected array of `WC_Meta_Data` objects
$user_meta_data = $customer->get_meta_data();

// Loop through `WC_Meta_Data` objects
foreach( $customer->get_meta_data() as $meta_data ){
// get an unprotected array of the current WC_Meta_Data object data
$meta_data_array = $meta_data->get_data();

$meta_key   = $meta_data_array['key']; // The meta key
$meta_value = $meta_data_array['value']; // The meta value
$meta_value = is_array($meta_value) ? implode(' | ', $meta_value) : $meta_value;

// Testing output
echo $meta_key  . ': ' . $meta_value . '<br>';
}

// echo $customer;

wp_die();
}

或者您可以使用Wordpress的方式使用get_user_meta()函数来获得所有用户元数据的数组：

add_action( 'user_register', 'new_contact', 10, 3 );
function new_contact( $user_id ) {
if ( isset( $_POST['first_name'] ) )
update_user_meta($user_id, 'first_name', $_POST['first_name']);
// Get an instance of the WP_User Object from user Id
$user = new WP_User( $user_id );

// Get the meta value from a specific meta key
$meta_value = $user->afreg_additional_1558;
echo 'Value: ' . $meta_value . '<br>'; //Display the value
// OR using 
$meta_value = get_user_meta( $user_id, 'afreg_additional_1560', true );
echo 'Value: ' . $meta_value . '<br>'; //Display the value

// Get an array of all user meta data
$user_meta_data = get_user_meta( $user_id );

// Testing output meta data
print_r( $user_meta_data );

wp_die();
}

为了获得相关用户元数据的正确元密钥，您还可以查看wp_usermeta数据库表。

最后，正如您现在所看到的，将每个值存储在一个变量中很容易，但您的第三方插件并不能使事情变得简单和明确，因为每个元密钥都是一种内部id。