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phpreaddir
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- 2016-08-04 09:21:111000browse
Why does the readdir (resource file) function appear after reading . and .. 
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Why does the readdir (resource file) function appear after reading . and ..
. represents the current directory, .. represents the upper-level directory, and there will be these two in every directory.
If you don’t believe me, open the command line, use the dir command under windows, or use ls -alto check under linux
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