Help with an array..

[garry]

Hi, I am using prestashop to make a site for a client and need some help with an array.. Basically, this array has categories and I want it to get only the subcategories for the page the user is currently on. Here's an example of the array I get:

 

array(5) {
  ["id"]=>
  string(1) "1"
  ["link"]=>
  string(59) "/clients/2008/august/krisskappel/category.php?id_category=1"
  ["name"]=>
  string(4) "Home"
  ["desc"]=>
  string(0) ""
  ["children"]=>
  array(4) {
    [0]=>
    array(5) {
      ["id"]=>
      string(1) "3"
      ["link"]=>
      string(59) "/clients/2008/august/krisskappel/category.php?id_category=3"
      ["name"]=>
      string(11) "Accessories"
      ["desc"]=>
      string(35) "Wonderful accessories for your iPod"
      ["children"]=>
      array(1) {
        [0]=>
        array(5) {
          ["id"]=>
          string(1) "6"
          ["link"]=>
          string(59) "/clients/2008/august/krisskappel/category.php?id_category=6"
          ["name"]=>
          string(11) "Subcategory"
          ["desc"]=>
          string(11) "Description"
          ["children"]=>
          array(0) {
          }
        }
      }
    }
    [1]=>
    array(5) {
      ["id"]=>
      string(1) "2"
      ["link"]=>
      string(59) "/clients/2008/august/krisskappel/category.php?id_category=2"
      ["name"]=>
      string(5) "iPods"
      ["desc"]=>
      string(110) "Now that you can buy movies from the iTunes Store and sync them to your iPod, the whole world is your theater."
      ["children"]=>
      array(0) {
      }
    }
    [2]=>
    array(5) {
      ["id"]=>
      string(1) "4"
      ["link"]=>
      string(59) "/clients/2008/august/krisskappel/category.php?id_category=4"
      ["name"]=>
      string(7) "Laptops"
      ["desc"]=>
      string(246) "The latest Intel processor, a bigger hard drive, plenty of memory, and even more new features all fit inside just one liberating inch. The new Mac laptops have the performance, power, and connectivity of a desktop computer. Without the desk part."
      ["children"]=>
      array(0) {
      }
    }
    [3]=>
    array(5) {
      ["id"]=>
      string(1) "5"
      ["link"]=>
      string(59) "/clients/2008/august/krisskappel/category.php?id_category=5"
      ["name"]=>
      string(13) "Test Category"
      ["desc"]=>
      string(0) ""
      ["children"]=>
      array(1) {
        [0]=>
        array(5) {
          ["id"]=>
          string(1) "7"
          ["link"]=>
          string(59) "/clients/2008/august/krisskappel/category.php?id_category=7"
          ["name"]=>
          string(5) "test2"
          ["desc"]=>
          string(0) ""
          ["children"]=>
          array(0) {
          }
        }
      }
    }
  }
}

 

So basically, the Home is what everything goes in, so I don't need to worry about that, it's just for the children of home I need to worry about. For example, lets look at the category "Accessories". Accessories is a main category and it's subcategory is "subcategory". Basically what I want to do is, if the user is on the accessories page already, show them the subcategories for accessories. I can get the category id for the page they're already on with $_GET['category_id']; so it's just a matter of getting the right stuff from the array. I hope i've explained this right.

 

I would really appreciate any help!

[garry]

Anyone? I would really appreciate some help with this.

[MasterACE14]

what type of array is it? could you show the PHP array?

[garry]

Well, I'm just running var dump on the variable I get from app (it's using smarty). How can I find out what type of array? I pasted the entire contents of the var_dump

[MasterACE14]

is structured like...

<?php

$array = array();
$array[1] = "lol";
$array['lol'] = 1;

 

or is  it more like..

<?php
$array {
name => "value";
}

[garry]

Can't you see from the code I posted?

 

It is like this:

 

array(5) {

  ["id"]=>

  string(1) "1"

  ["link"]=>

  string(59) "/clients/2008/august/krisskappel/category.php?id_category=1"

  ["name"]=>

  string(4) "Home"

[MasterACE14]

if so, you should be able to access elements like this. I think.

 

echo $array['5']['id'];

[garry]

Yeah, I know that. But what I want to be able to do is find which number (the [5]) has the information that the current category is. Where does the 5 come from? Do you know?

[MasterACE14]

I was using your above example...

array(5) { // <-- Thats the five
  ["id"]=>
  string(1) "1" // <-- thats the one

[garry]

Oh, I was talking about the whole array that I posted in my very first post. Basically, I just need to go to the array which corresponds to the category in the url (?category_id=x) I need to get to the array which has the id => x in it. Do you understand this?

[wildteen88]

Rather than use var_dump to print the array can you post the output of print_r instead, it'll make the array structure more clear to read.

echo '<pre>' . print_r($your_array_var, true) . '</pre>';

 

Also can you post details of how that array is constructed.

[garry]

I'm not 100% on how the array is constructed, it's done by the application. I'm just trying to alter the results. Here's the result of your print_r:

 

Array
(
    [id] => 1
    [link] => /clients/2008/august/krisskappel/category.php?id_category=1
    [name] => Home
    [desc] => 
    [children] => Array
        (
            [0] => Array
                (
                    [id] => 3
                    [link] => /clients/2008/august/krisskappel/category.php?id_category=3
                    [name] => Accessories
                    [desc] => Wonderful accessories for your iPod
                    [children] => Array
                        (
                            [0] => Array
                                (
                                    [id] => 6
                                    [link] => /clients/2008/august/krisskappel/category.php?id_category=6
                                    [name] => Subcategory
                                    [desc] => Description
                                    [children] => Array
                                        (
                                        )

                                )

                        )

                )

            [1] => Array
                (
                    [id] => 2
                    [link] => /clients/2008/august/krisskappel/category.php?id_category=2
                    [name] => iPods
                    [desc] => Now that you can buy movies from the iTunes Store and sync them to your iPod, the whole world is your theater.
                    [children] => Array
                        (
                        )

                )

            [2] => Array
                (
                    [id] => 4
                    [link] => /clients/2008/august/krisskappel/category.php?id_category=4
                    [name] => Laptops
                    [desc] => The latest Intel processor, a bigger hard drive, plenty of memory, and even more new features all fit inside just one liberating inch. The new Mac laptops have the performance, power, and connectivity of a desktop computer. Without the desk part.
                    [children] => Array
                        (
                        )

                )

            [3] => Array
                (
                    [id] => 5
                    [link] => /clients/2008/august/krisskappel/category.php?id_category=5
                    [name] => Test Category
                    [desc] => 
                    [children] => Array
                        (
                            [0] => Array
                                (
                                    [id] => 7
                                    [link] => /clients/2008/august/krisskappel/category.php?id_category=7
                                    [name] => test2
                                    [desc] => 
                                    [children] => Array
                                        (
                                        )

                                )

                        )

                )

        )

)

[garry]

anyone?

[DarkWater]

I was using your above example...

array(5) { // <-- Thats the five
  ["id"]=>
  string(1) "1" // <-- thats the one

 

The 5 shows how many elements are in that array, not the index of the array.

[wildteen88]

You'll have to create a function for this. You'll have to loop through the array and search for the requested id. I have come up with this

function array_multi_search($search, $array)
{
    $r = null;
    foreach($array as $key => $value)
    {
        if($key == 'id' && $value == $search)
        {
            unset($array['children']);
            return $array;
        }
        elseif(is_array($value))
        {
            $r = array_multi_search($search, $value);

            if(is_array($r))
            {
                return $r;
            }
        }
    }

    return false;

}

$result = array_multi_search(3, $arr);
echo '<pre>' . print_r($result, true) . '</pre>';

$result = array_multi_search(7, $arr);
echo '<pre>' . print_r($result, true) . '</pre>';

 

change $arr to your array variable name.

[garry]

Wow, you're a genius! That function worked great, thanks a lot.

 

Now I just have one more little problem and that's it. I'm not sure if this can be done.. but basically, when a user clicks on a sub-category, they are just assigned another id_category in the url, e.g 7. So when they're in the subcategory, the sidebar on the left will try to show the subcategories for the subcategory, which I don't want it to do. What I want it to do is still show the subcategories for the main categories (main categories are the children to home). Is there a way to do this?

[garry]

Bump.. please?

[wildteen88]

Not sure what you mean, but it has nothing to do with my code. It must be to do with what you're doing, you'll need to post the relevant code to your problem