RE: Help with my first recursion menu

> -----Original Message----- > From: MEM [mailto:talofo@gmail.com] > Sent: quarta-feira, 28 de Outubro de 2009 15:55 > To: 'php-general@lists.php.net' > Subject: Help with my first recursion menu > > Hello all, > > Please have a look here: > http://www.nuvemk.com/c_categoria/seccao/1 > > > When we click on "Fitofármacos", I can display the correspondent > children! This is great! And I'm really happy! > :) > > When we click on Fitofármacos children - "Herbicidas", I was expecting > to have returned Herbicidas childs, without losing the Fitofármacos > menu item. > > The reason I'm losing him, I suppose, it's due the fact that the URI is > not properly generated by the function responsible to parse a menu. > > Notice that, on the link posted above: > If you click on fitofármacos and then click on herbicidas, the expected > URL should be: > http://www.nuvemk.com/c_categoria/seccao/1/6/9/ > > but I'm getting this instead: > http://www.nuvemk.com/c_categoria/seccao/6/9/ > > If we try to navigate deeply, and inside Herbicidas we click on > "Herbicidas A", we are expecting an URL like so: > http://www.nuvemk.com/c_categoria/seccao/1/6/9/27/ > > But we are getting this instead: > http://www.nuvemk.com/c_categoria/seccao/9/27/ > > > Here is the actual code: > http://pastebin.com/m8ffe9db > > I've not yet completely understand the recursion, can I have your help > in order to understand how can I recursively build the URI segments? > > > > Thanks a lot in advance, > Márcio I've been told that stack is the way to go, so I'm trying to understand the following code: http://pastebin.com/m5616c88f I've commented every line so that any of you could see if I'm interpreting something wrong: I have two questions about this code, that hopefully someone on the list could explain: 1) Why do we need to remove the last array item? (on line 32): array_pop($urlStack); 2) Why we print the closed tag of the li element, after the recursive call? (on line 29) echo "</li>\n"; Thanks a lot in advance, Márcio