如何使用Codeigniter（而不使用querystring）将复杂的$ _GET变量检索为多维数组

Question

** I've googled for hours, and searched within stackoverflow. Found a few similar ones, but couldn't find a good answer yet.**

I'm thinking of rewriting my project using codeigniter.

I have a search.php with possible querystring:

search.php?o=1&kk=1&k=sales&kx=&w=4&l=New+York%2C+NY%2C+USA&i=222&i=229&i=225&i=238&i=237&i=203&el=3&eu=10&ei=on&d=5&d=4&d=9&d=6&at=&a=Any

Please note that $_GET['i'] & $_GET['d'] could be arrays.

I found some mentioned about

$this->url->uri_to_assoc();

Hoping I maybe able to retrieve $_GET values as

/i/222/i/229/i/225/i/238/i/237/i/203

or

/i/222/229/225/238/237/203

So I tested with controllers/show.php

class show extends CI_Controller
{
    function get()
    {
        echo "<pre>";
        print_r ($this->uri->uri_to_assoc());
        echo "</pre>";
    }
}

When I input in URL as the following,

http://localhost/index.php/show/get/i/0123/i/52/i/l2

The above code only returns the last input.

Array
(
    [i] => l2
)

My actual question is, in Codeigniter, from URL above, is there a way to retrieve as an array as

Array
(
[i] => array ([0] => 0123, [1] => 52, [2] => 12)
)

or similar NOT using Querystring? (cos if I enable Querystring I can't use other Codeigniter helping features etc.)

So I could retrieve my original $_GET querystring as something like

Array
(
[d] => array ([0] => 123, [1] => 456),
[i] => array ([0] => 11, [1] => 99),
[dx] => 1,
[dy] => 'New+York'
)

in Codeigniter.

Answer 1

Have you tried using the raw PHP query string?

$_SERVER['QUERY_STRING']

Then phase through it

$vars=$_SERVER['QUERY_STRING'];
$vars=explode('&',$vars);
$d=array();
$i=array();
foreach($vars as $var)
{
   $split=explode('=',$var);
   if($split[0]=='d')
   {
       $d[]=$split[1];
   }
   elseif($split[0]=='i')
   {
       $i[]=$split[1];
   }
   else
   {
        $$split[0]=split[1];// note the double $$ signs
   }
}