html - php递归实现留言板分层功能
类似上面这样的功能
我的想法是建立一张留言表，其中有一个id字段和pid字段，如果是第一级留言pid字段就设置为0，否则就存它上一层id值。 取数据的时候递归得出每一条的深度，根据这个深度在输出的前面添加空格。
表大概是这样
id pid content
1 0 留言1
2 0 留言2
3 0 留言3
4 3 留言4
5 4 留言5
这样好像翻页功能不太好做，不知道哪里可以改进？
不知道还有没有其他的好办法，希望给个思路！
回复内容：
类似上面这样的功能
我的想法是建立一张留言表，其中有一个id字段和pid字段，如果是第一级留言pid字段就设置为0，否则就存它上一层id值。 取数据的时候递归得出每一条的深度，根据这个深度在输出的前面添加空格。
表大概是这样
id pid content
1 0 留言1
2 0 留言2
3 0 留言3
4 3 留言4
5 4 留言5
这样好像翻页功能不太好做，不知道哪里可以改进？
不知道还有没有其他的好办法，希望给个思路！
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