How to set an Arrays internal pointer to a specific position? PHP/XML -


I'm trying to create a bit of site using XML rather than a database.

I would like to create a front and back button which will work in relation to the content I have displayed.

I want to set the pointer to a specific position to be able to navigate the PHP function next () and the previous () as well as current (), but relative to the current page . 

  $ list = array ('page1', 'page2', 'page 3')

For example if I display the content of page 2 How to tell PHP that I am in the $ list [1] so that the next ($ list) will show page 3?

In advance thank you

If your array is always indexed (like 'Page 1 'Always index' at 0), it is quite simple: 

  $ list = array ('page1', 'page2', 'page3', 'page4', 'page5'); $ Current page = 3; // 'page 4' while (key ($ list)! == $ current page) Next ($ list); // Unless there is a match

I do not rely on auto-indexing because there is always a chance that the automatic index can change. You must define the keys clearly: 

  $ list = array ('1' => 'Page 1', '2' => 'Page 2', '3 '= & Gt;' Page 3 ',);  Edit:  If you want to test the values ​​of the array (instead of the keys), then use it:  
  (current ($ list)! = = $ Current page) Next ($ list);

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