N level tree traversing

[phpeid]

Hello everybody,

 

i am working on n level category tree structure, for your information the category tree structure image is attached with this post.

 

Let's consider, each of the category have hundreds( n level ) of category in each, i want to traverse each category without using recursive functions, reason being recursive functions are very slow,  is there any way to do this??

 

Thanks,

phpeid

 

 

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[doddsey_65]

http://articles.sitepoint.com/article/hierarchical-data-database is a good read. the second method(preorder tree traversal) doesnt use recursion.