我想要的效果是将两列添加到wp-admin/edit-comments.php页面,评论ID本身和它的父评论ID。如下:

add_filter( 'manage_edit-comments_columns', 'rudr_add_comments_columns' );
function rudr_add_comments_columns( $my_cols ){
	$misha_columns = array(
		'm_comment_id' => 'ID',
		'm_parent_id' => 'Parent ID'
	);
	$my_cols = array_slice( $my_cols, 0, 3, true ) + $misha_columns + array_slice( $my_cols, 3, NULL, true );
	return $my_cols;
}

add_action( 'manage_comments_custom_column', 'rudr_add_comment_columns_content', 10, 2 );
function rudr_add_comment_columns_content( $column, $comment_ID ) {
	global $comment;
	switch ( $column ) :
		case 'm_comment_id' : {
			echo $comment_ID; 
			break;
		}
		case 'm_parent_id' : {
			echo $comment->comment_parent;
			break;
		}
	endswitch;
}

教程结束