php array with nested arrays as query parameter implode/explode

Question

i have to send this array with nested arrays

            $tags=[];
            foreach ($importedTags->tags as $key => $value) {
                $tags[]=array(
                    "name"=>$value->getName(),
                    "id"=>$value->getId(),
                );
            }

the array (if there were 3 importedTags) may look like this :

array(3) { 
   [0]=> array(2) { ["name"]=> string(14) "foo" ["id"]=> string(7) "3375095" } 
   [1]=> array(2) { ["name"]=> string(12) "bar" ["id"]=> string(7) "3378925" } 
   [2]=> array(2) { ["name"]=> string(8) "foobar" ["id"]=> string(7) "3405555" } 
}

as a GET query parameter on a url

i tryed

            $params=array(
                "pageId"=>$pageId,
                "tags"=>urlencode(implode(",", $tags))
            );

return $this->redirect($this->generateUrl('my_route.create_sth',$params));

but when i parse it like

    $tags=urldecode($request->query->get('tags'));
            $tags=explode(",",$tags);

it returns to

array(3) {  
     [0]=> string(5) "Array" 
     [1]=> string(5) "Array" 
     [2]=> string(5) "Array" 
}

and i know why its like this, and this makes sense

but i´m a php newbie, so how can i solve this and get a string representation like i tryed to get with implode and explode to get array back with such nested arrays?

They aren't nested arrays. They're strings (as you can see from var_dump) with the string content Array. You're most likely trying to cast an array to a string at some point. — h2ooooooo
– h2ooooooo, Commented Mar 22, 2014 at 11:18
Note $tags is a bi-dimensional array. You have $tags[$item]["name"] and $tags[$item]["id"], so a mere implode does not convert it into flat string. What value do you want to send on GET, name or id? — fedorqui
– fedorqui, Commented Mar 22, 2014 at 11:19
@h2ooooooo hmn sry for bad wording, updated first line of text @ fedorqui i need the whole array with its nested arrays — john Smith
– john Smith, Commented Mar 22, 2014 at 11:22
(Note you cannot use @ for two people in the same comment, just first one gets notified) How do you want the string to look like? — fedorqui
– fedorqui, Commented Mar 22, 2014 at 11:24
when i parse the queryparameter i want to have the full array with its access, so im looking for a way to string-representate the array with nested array, i updated the answer with var_dump($tags) before they get send — john Smith
– john Smith, Commented Mar 22, 2014 at 11:27

WebHQ · Accepted Answer · 2014-03-22 16:12:19Z

2

change generating of params to:

$params=[];
foreach ($importedTags->tags as $key => $value)
{
    $params[]=$value->getName() .'|'. $value->getId();
}

$this->redirect($this->generateUrl('my_route.create_sth',$params));

on the other site do:

$tags=[];
foreach ($params as $param)
{
    $paramArray = split('|', $param);
    $tags[$paramArray[0]]=$paramArray[1];
}

and you have nested array.

good luck

answered Mar 22, 2014 at 16:12

WebHQ

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