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PHP converts a path array into a directory tree

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Release： 2016-10-09 08:32:31
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<code>$paths = ['aa','aa/bb','ww/yyy','aa/kk','xx/oo/pp'];
</code>
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According to this array, convert it into the structure of the directory tree, as follows:
aa
-bb
-kk
ww
-yyy
xx
-oo
--pp

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