我正在write posts面板中注册多个元数据库。在函数中。php：

$meta_boxes[] = array(
    \'id\' => \'products\',
    \'title\' => \'Products\',
    \'pages\' => array(\'post\', \'page\', \'link\'), // multiple post types, accept custom post types
    \'context\' => \'normal\', // normal, advanced, side (optional)
    \'priority\' => \'high\', // high, low (optional)
    \'fields\' => array(
        array(
                        \'name\' => \'something\',
            \'id\' => $prefix . \'something\',
            \'desc\' => \'some description\',
            \'type\' => \'checkbox\'
              ),
                 //continue with other fields
             )
           );

//another metabox 
$meta_boxes[] = array(
    \'id\' => \'customers\',
    \'title\' => \'Customers\',
//etc...

我可以使用以下方法获取帖子中所有字段的值：

$custom_field_keys = get_post_custom_keys();
foreach ( $custom_field_keys as $key => $value ) {
    $valuet = trim($value);

    if ( \'_\' == $valuet{0} )
        continue;
        echo $value . ":<br />";
        echo get_post_meta($post->ID, $value, true) . "<br/><br/>";
}

如何获取指定的元框中所有字段的名称和值。例如，获取metabox id“products”中字段的所有值。