我可以使用woocommerce products custom fields

但是，我需要在我的管理区域中的多个复选框中显示多个值。我有以下代码：

 <input type="checkbox" name="myoption[option_one]" value="1"<?php checked( isset( $options[\'option_one\'] ) ); ?> />
 <input type="checkbox" name="myoption[option_two]" value="1"<?php checked( isset( $options[\'option_two\'] ) ); ?> />

现在，我如何才能将它们保存到一个元字段中？与下面的想法类似？

$product_field_type =  $_POST[\'product_field_type\'];
update_post_meta( $post_id, \'_product_field_type_ids\', $product_field_type );

EDIT

好的，我已经能够在我的产品页面中定义一个自定义框。但我的复选框没有存储！我错过了什么？

   /* Define the custom box */
add_action( \'add_meta_boxes\', \'wpse_61041_add_custom_box\' );

/* Do something with the data entered */
add_action( \'save_post\', \'wpse_61041_save_postdata\' );

/* Adds a box to the main column on the Post and Page edit screens */
function wpse_61041_add_custom_box() {
  add_meta_box( \'wpse_61041_sectionid\', \'title_color\', \'wpse_61041_inner_custom_box\', \'product\', \'normal\', \'high\' );
}
/* Prints the box content */
function wpse_61041_inner_custom_box($post)
{
    // Use nonce for verification
    wp_nonce_field( \'wpse_61041_wpse_61041_field_nonce\', \'wpse_61041_noncename\' );

    // Get saved value, if none exists, "default" is selected
    $saved = get_post_meta( $post->ID, \'title_color\', true);
    if( !$saved )
        $saved = \'default\';

    $fields = array(
        \'red\'       => __(\'Red\', \'wpse\'),
        \'green\'     => __(\'Green\', \'wpse\'),
        \'blue\'      => __(\'Blue\', \'wpse\'),
        \'default\'   => __(\'Default\', \'wpse\'),
    );

    foreach($fields as $key => $label)
    {
        printf(
            \'<input type="checkbox" name="title_color" value="%1$s" id="title_color[%1$s]" %3$s />\'.
            \'<label for="title_color[%1$s]"> %2$s \' .
            \'</label><br>\',
            esc_attr($key),
            esc_html($label),
            checked($saved, $key, false)
        );
    }
}

   /* When the post is saved, saves our custom data */
   function wpse_61041_save_postdata( $post_id ) 
   {
        // verify if this is an auto save routine. 
      // If it is our form has not been submitted, so we dont want to do anything
      if ( defined( \'DOING_AUTOSAVE\' ) && DOING_AUTOSAVE ) 
          return;

      // verify this came from the our screen and with proper authorization,
      // because save_post can be triggered at other times
      if ( !wp_verify_nonce( $_POST[\'wpse_61041_noncename\'], \'wpse_61041_wpse_61041_field_nonce\' ) )
          return;

      if ( isset($_POST[\'title_color\']) && $_POST[\'title_color\'] != "" ){
            update_post_meta( $post_id, \'title_color\', $_POST[\'title_color\'] );
      } 
}

printf(
            \'<input type="checkbox" name="title_color" value="%1$s" id="title_color[%1$s]" %3$s />\'.
            \'<label for="title_color[%1$s]"> %2$s \' .
            \'</label><br>\',
            esc_attr($key),
            esc_html($label),
            in_array($key, (array) $saved )
        );