PHP - Two Questions About Array Indexes

I've got a few arrays as follows:

Code: [Select]
$array1 = ('A', 54, 'a', 2);
$array2 = (, 67, 'b',);
$array3 = ('R', 54,,);
$array4 = (, 36, 'b');
$array5 = (, 36, 'a',);
$array6 = ('FX', 119, 's', 4);
$array7 = ('R', 3, 'c',);

$superarray = array($array1, $array2, $array3, $array4, $array5, $array6, $array7);
Now, I've got a piece of code that sorts $superarray by index[1] of the sub-arrays.  The code looks like this:

Code: [Select]
function sortmulti ($array, $index, $order, $natsort=FALSE, $case_sensitive=FALSE)
               {
              if(is_array($array) && count($array)>0)
                   {
                  foreach(array_keys($array) as $key)
                     $temp[$key]=$array[$key][$index];
                  if(!$natsort)
                       {
                      if ($order=='asc')
                          asort($temp);
                      else   
                          arsort($temp);
                     }   
                  else
                     {
                      if ($case_sensitive===true)
                          natsort($temp);
                      else
                          natcasesort($temp);
                     if($order!='asc')
                         $temp=array_reverse($temp,TRUE);
                     }
                  foreach(array_keys($temp) as $key)
                      if (is_numeric($key))
                          $sorted[]=$array[$key];
                      else   
                          $sorted[$key]=$array[$key];
                  return $sorted;
                 }
             return $sorted;
            }

$sortedarray = sortmulti($superarray, 1, ASC, $natsort=FALSE, $case_sensitive=FALSE)

The output is this:

R3c
36b
36a
A54a2
R54
67b
FX119s4

This is great because it goes 3 -> 36 -> 36 -> 54 -> 54 -> 67 -> 119.

However, the problem, if you look, is this part:

36b
36a

Its sorted everything according to index[1] of the sub-arrays, but now I would like to sort by index[2], then index[3] as well.  I'd like the output to look like this:

R3c
36a
36b
A54a2
R54
67b
FX119s4

Any ideas?  Because this is way over my head ...

Howdy,

I am new to SEO. Could you please help me? 

1. I like to post programming tutorials to both my website & various programming forums. Is that going to screw up my website's ranking in Google?

2. My editor of my history website who sometimes posts essays there also posts them in some history forums. Is that bad for SEO?

3. I made a Facebook page for my history website. It says there "Promote your page" basically you pay $5 for around 100 likes. Has anyone tried that? Does it work? Because $5 seems like little money for additional 100 likes which will increase the traffic considerably.

Thank you so much for the help!

I've been coding PHP for some time and would consider myself to be at an intermediate level. I can write code to do what I need but it's probably not the best way to do it. I rarely see any code that I am not able to read, understand, or follow. I've created modifications for everything from vBulletin, WordPress, Kayako Support Suit, Magento, and more.

However, I've never really built a strong understanding around OOP. For example, let say you have the following classes:
_main
  -  db
  -  admin
  -  -  modules
  -  -  -  dashboard

How would you share the db connection with the dashboard class? I've been trying to read up on Dependency Injections and Singletons but I haven't found an article that has explained it on a level that I can understand. I get a feeling that most people who use OOP in PHP have a background in Java or C++ and are much more familiar with everything.

Could someone please explain this to me in simple terms or link me to an extremely well explained article that I'd be able to understand without a background in computer science?
Thanks

Hi. I'll like to ask few questions about PHP, as I think they are related to it.   I've came across some webpages, what I've spotted is that a webpage displays content but each "page" has different argument and there is no filename. For example: "http://www.website.com/?home" is home-like webpage, by changing "/?home" to "/?anotherpage" land me on some other webpage on their website and so on. My question is how is it done? Is it done from PHP? Another question I wanted to ask is.. I went on InvisionPower.Board forum (such as this PHP Freaks  ). How to force "folders" to be displayed as "files"? For example: "http://forums.phpfre...ks-on-facebook/" which links to a thread.   Thanks in advance