How to prepend array to each element of another array with my choice of key and value (in php)?

Question

This code :

for ($p=0;$p<count($results);$p++){
    foreach ($results[$p] as $k => $v){
        $typeee = ['type' => strtolower(str_replace('_','',$results[$p][$k]['metric']))."container"];
        array_insert2($results[$p],0,$typeee);
    }
}
print_r($results);

gives me this:

Array (
    [0] => Array
        (
            [type] => pagestoriescontainer
            [0] => Array
                (
                    [type] => pagestories
                    [object_id] => 123456778
                    [metric] => page_stories
                    [end_time] => 1386057600
                    [period] => 86400
                    [value] => 2090
                )

            [1] => Array
                (
                    [type] => pagestorytellers
                    [object_id] => 123456778
                    [metric] => page_storytellers
                    [end_time] => 1386057600
                    [period] => 86400
                    [value] => 2041
                )


 [...]

[1] => Array
        (

            [0] => Array
                (
                    [type] => pagestories
                    [object_id] => 199193463123456778
                    [metric] => page_stories
                    [end_time] => 1386057600
                    [period] => 86400
                    [value] => 0
                )

            [1] => Array
                (
                    [type] => pagestorytellers
                    [object_id] => 199193463123456778
                    [metric] => page_storytellers
                    [end_time] => 1386057600
                    [period] => 86400
                    [value] => 0
                )

   [...]

But this code:

for ($p=0;$p<count($results);$p++){
    foreach ($results[$p] as $k => $v){ 
        $typeee = ['type' => strtolower(str_replace('_','',$results[$p][$k]['metric']))."container"];
        array_insert2($results[$p],$k,$typeee);
    }
}

DOES NOT give me this:

Array (
    [0] => Array
        (
            [type] => pagestoriescontainer
            [0] => Array
                (
                    [type] => pagestories
                    [object_id] => 123456778
                    [metric] => page_stories
                    [end_time] => 1386057600
                    [period] => 86400
                    [value] => 2090
                )
            [type] => pagestorytellerscontainer
            [1] => Array
                (
                    [type] => pagestorytellers
                    [object_id] => 123456778
                    [metric] => page_storytellers
                    [end_time] => 1386057600
                    [period] => 86400
                    [value] => 2041
                )


 [...]

[1] => Array
        (
            [type] => pagestoriescontainer
            [0] => Array
                (
                    [type] => pagestories
                    [object_id] => 199193463123456778
                    [metric] => page_stories
                    [end_time] => 1386057600
                    [period] => 86400
                    [value] => 0
                )
            [type] => pagestorytellerscontainer
            [1] => Array
                (
                    [type] => pagestorytellers
                    [object_id] => 199193463123456778
                    [metric] => page_storytellers
                    [end_time] => 1386057600
                    [period] => 86400
                    [value] => 0
                )

   [...]

Why? How can I get what I want? :)

Also,

function array_insert2 (&$array, $position, $insert_array) {  
    $first_array = array_splice ($array, 0, $position);
    $array = array_merge ($first_array, $insert_array, $array);
}

PROTIP: When formatting code, use the {} button, not the " button on the toolbar. — gen_Eric
– gen_Eric, Commented Dec 12, 2013 at 15:57
The array you seem to want doesn't make any sense. You are trying to do: ['type' => '', 0 => [], 'type' => '', 1 => []]. You can't have multiple type keys. Can you try to explain what exactly it is you want? — gen_Eric
– gen_Eric, Commented Dec 12, 2013 at 16:02
stackoverflow wouldnt let me use {} because I havent written enough "text" in comparison to amount of code. More text != better explained problem (its called waffling). I need to add type to every single level of multidimensional array and convert all numeric indexes to "own".$variable so I can do this: redbeanphp.com/cooker — codepreneur
– codepreneur, Commented Dec 12, 2013 at 16:43
I still don't understand. Every level already has a type value. Why do you want to add another? Do you want a structure like this: [['type' => '', 'data' => []], ['type' => '', 'data' => []]]? — gen_Eric
– gen_Eric, Commented Dec 12, 2013 at 16:47

Stijn van Grinsven · Accepted Answer · 2013-12-12 16:03:42Z

1

array_insert2's second param is the position. In the first code you are actually giving it an integer making it a valid position ( $p, combined with the array_splice function ). In the second piece of code, the position supplied to array_insert2 is the key ( $k ) from the foreach loop on $results[$p]. The key given cannot be used correctly with the array_splice function. Maybe instead of supplying $k, give the array_search result of $k in $results[$p].

short-answer: The position supplied in the second piece of code is not an integer, making it not usable for the array_splice function.

answered Dec 12, 2013 at 16:03

Stijn van Grinsven

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