This article mainly introduces the relevant knowledge of generating unlimited column trees in PHP. Has very good reference value. Let’s take a look at it with the editor
ColumnArray:
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The following mainly introduces the super awesome Infinitus classification spanning tree of PHP Method, cleverly use citation in PHP to realize the tree generation method, which is much more advanced than the recursive method. Friends who need it can refer to
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as you can see below Printed result:
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The above spanning tree method can be reduced to 5 lines:
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The above tree-structured method of infinite classification data is worth learning from. But I think the actual use of this code is not obvious. If you want to take out the formatted tree data, you still have to recurse:
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