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无数据库留言本的有关问题

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Release： 2016-06-13 13:32:56
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无数据库留言本的问题
怎么读取每个用户的留言信息。用fread读取只能全部读取，而不能分开读取用户的留言再在网页上分别显示，
看到别人写的留言本不太懂是怎么读出来的。希望大家指点迷境。。

------解决方案--------------------
可以用XML文档的格式来代替数据库，这样也好操作
------解决方案--------------------
可将留言保存定长。【费空间，能大幅提高文件定位时间】

这样子，为每个用户，都用文件记录写入的行的位置

fseek可直接定位要读取的数据位置

Related labels：
fread xml
source：php.cn
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