How to add fields to an existing wordpress meta box?

Question

metadata

Hello!
There is a site on wordpress with a comment form. I add 2 meta fields job and city

add_action( 'comment_form_logged_in_after', 'extend_comment_custom_fields' );
add_action( 'comment_form_after_fields', 'extend_comment_custom_fields' );
function extend_comment_custom_fields() {

    echo '<p class="comment-form-job">'.
              '<label for="job">' . esc_attr__( 'Ваша профессия','credit7') . '</label>'.
              '<input id="job" name="job" type="text" size="30"/></p>';

    echo '<p class="comment-form-city">'.
              '<label for="city">' . esc_attr__( 'Город проживания','credit7') . '</label>'.
              '<input id="city" name="city" type="text" size="30"/></p>';
}

add_action( 'comment_post', 'save_extend_comment_meta_data' );
function save_extend_comment_meta_data( $comment_id ){

    if( !empty( $_POST['job'] ) ){
        $job = sanitize_text_field($_POST['job']);
        add_comment_meta( $comment_id, 'job', $job );
    }

    if( !empty( $_POST['city'] ) ){
        $city = sanitize_text_field($_POST['city']);
        add_comment_meta( $comment_id, 'city', $city );
    }

}

Now I need to display them in the admin panel. If you add like this:

add_action( 'add_meta_boxes_comment', 'extend_comment_add_meta_box' );
function extend_comment_add_meta_box(){
    add_meta_box( 'title', __( 'Comment Metadata - Extend Comment' ), 'extend_comment_meta_box', 'comment', 'normal', 'high' );
}

// Отображаем наши поля
function extend_comment_meta_box( $comment ){
    $job  = get_comment_meta( $comment->comment_ID, 'job', true );
    $city  = get_comment_meta( $comment->comment_ID, 'city', true );

    wp_nonce_field( 'extend_comment_update', 'extend_comment_update', false );
    ?>
    <p>
        <label for="job"><?php esc_attr__( 'Ваша профессия','credit7'); ?></label>
        <input type="text" name="job" value="<?php echo esc_attr( $job ); ?>" class="widefat" />
    </p>
    <p>
        <label for="city"><?php esc_attr__( 'Город проживания','credit7'); ?></label>
        <input type="text" name="city" value="<?php echo esc_attr( $city ); ?>" class="widefat" />
    </p>
    <?php
}

Then they fall into a separate metabox. But how to add them to an existing metabox (on the screen) so that they follow one after another and are not divided into blocks?

Answer 1

You just need to use the same meta-box idadd_meta_box( ID_META_BOX, ..... );