array_push creates new arrays instead of adding

Question

I would like to add a key=>value pair to an existing array depending on an if statement. But it keeps adding the key=>value pair as a new index.

Here is my code:

foreach ($messageRepo as $oneMessage) {
        $calculatedTime = $oneMessage->getTimeToLive();
        $creationTime = $oneMessage->getCrdate();

        $calculatedTimes = $this->androidService->renderFormat($calculatedTime);
        $expiringDate = $creationTime + $calculatedTime;

        $ausgabe[] = array(
            'Time' => key($calculatedTimes),
            'Format' => current($calculatedTimes),
            'Title' => $oneMessage->getMessageTitle(),
            'Text' => $oneMessage->getMessageText(),
            );

        if (time() > $expiringDate) {
           array_push($ausgabe[]['Expired'], $expiringDate);

            } else {
            array_push($ausgabe[]['Expiring'], $expiringDate);
            }   
    }

The dump says:

    array(60 items)
0 => array(4 items)
  Time => 0 (integer)
  Format => 'Stunden' (7 chars)
  Title => '3 wochen total neu' (18 chars)
  Text => 'dfdsfsdf fgdsfgdsgf' (19 chars)
1 => array(1 item)
  Expired => NULL

But I want Expired => NULL as field in the original index and not as a new one.

Answer 1

You shouldn't use array_push in this case. Use simple assignment instead. As you don't know the index of the element that you are adding, you can create the new array, set all its values and then add it to the overall array. Something like this:

foreach ($messageRepo as $oneMessage) {
        $calculatedTime = $oneMessage->getTimeToLive();
        $creationTime = $oneMessage->getCrdate();

        $calculatedTimes = $this->androidService->renderFormat($calculatedTime);
        $expiringDate = $creationTime + $calculatedTime;

        $newval = array(
            'Time' => key($calculatedTimes),
            'Format' => current($calculatedTimes),
            'Title' => $oneMessage->getMessageTitle(),
            'Text' => $oneMessage->getMessageText(),
            );

        if (time() > $expiringDate) {
           $newval['Expired'] = $expiringDate;
        } else {
           $newval['Expiring'] = $expiringDate;
        }   

        $ausgabe[] = $newval;
}