.ab.file，怎么做可以让他只访问ab目录
- WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOriginal
- 2016-06-13 09:53:01923browse
'./a/b/'.$file，怎么做可以让他只访问a/b目录
'./a/b/'.$file
如果$file = '../1.php'
就可以访问/a/1.php 了
$file由用户输入，只允许其访问'./a/b/'下的文件因该怎么做
我来回答
D8888D回贴内容-------------------------------------------------------
取前两个字符.看看是不是".."
如果是就阻止
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