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我有以下表格：PHP交易和mysqli_insert_id
thread: id, title, content, created
thread_tags: tag_id, thread_id
tag: id, name
author_threads: thread_id, author_id
这是我常做的值插入所有这些领域的（一些步骤已经为简单起见，省略）：
$sql_thread = "INSERT INTO thread (title, content)
VALUES ('some title', 'some content')";
# this is normally a loop, as there are more than one tags:
$sql_tags = "INSERT INTO tag (name)
VALUES ('onetag')";
# normally I would check the return value
mysqli_query($link, $sql_thread);
# get the thread id:
$thread_id = mysqli_insert_id($link);
mysqli_query($link, $sql_tags);
# get the tag id:
$tag_id = mysqli_insert_id($link);
# insert into thread_tags:
mysqli_query($link, "INSERT INTO thread_tags (thread_id, tag_id) VALUES ($thread_id, $tag_id)");
# insert into author_threads, I already know author_id:
mysqli_query($link, "INSERT INTO author_threads (author_id, thread_id) VALUES ($author_id, $thread_id)")
我想确保所有这些都发生或者不会发生（即创建线程的过程）。我如何编码以使用交易？或者以其他方式确保所有这些都会发生？