如何在PHP的for循环中使用带有键值的array_push

Question

I'm trying to use array_push with key value pair in a for loop in php but I'm not getting anything in there, I only get 2 keys with no values, can anyone see what I'm doing wrong,

any help would be appreciated.

$totalItems = $dataArray["totalItemsCount"];
$linkNamesTaken = array();
for($i=0; $i<$totalItems; $i++) {
   array_push($linkNamesTaken[$dataArray["data"][$i]["subMediaType"]], $dataArray["data"][$i]["code"]);
}

print_r($linkNamesTaken);

I'm only getting

 [Track] => 
 [Album] => 

I'm expecting something like

[Track] => LSD-ThundercloudswithSiaDiploLabrinth-Single
[Album] => DuaLipa-ElectricitywithDuaLipa-Album

the dataArray contains data like the following

{"totalItemsCount": 7,
 "data": [
    {
        "id": "366eff50-d6e2-4038-a091-4b84849c7e9e",
        "url": "https://APItestboard.lnk.to/GeorgeEzra-Shotgun-Single",
        "code": "GeorgeEzra-Shotgun-Single",
        "subMediaType": "Track"
    },
   ... 6 more items here like above

 ]
}

Answer 1

Maybe you're looking for something like this?

$totalItems = $dataArray["totalItemsCount"];
$linkNamesTaken = array();
foreach($totalItems as $key => $value) {
   foreach($value['data'] as $key2 => $value2) {
       $linkNamesTaken[]['subMediaType'] = $value2['subMediaType'];
       $linkNamesTaken[]['code'] = $value2['code'];
   }
}

Answer 2

Here you go with key has subMediaType & value as code in your linkNamesTaken array

$linkNamesTaken = array();
foreach($dataArray['data'] as $k1 => $v1) { //7 loop on key value pair
      $linkNamesTaken[$v1['subMediaType']] = $v1['code']; // hopefully key value should be unique.
}

print_r($linkNamesTaken);

O/P

Array
(
    [Track] => GeorgeEzra-Shotgun-Single
    [New Track] => GeorgeEzra-Shotgun-Double
)

EDIT : see http://php.net/manual/en/function.array-push.php#108118