How can create a nested array in php dynamically

Question

I want to create a nested array in php. The structure of the array I am trying to create

array(
  'year' => 2017
  'month' => array(
       '0' => 'December',
       '1' => 'December',
   ) 

)

I am trying to create this array dynamically using array_push() function.

$date=array();
foreach ($allPosts as $p) {
    $year=date("Y", strtotime($p['published']));
    $month=date("F", strtotime($p['published']));
    array_push($date, $year);
    array_push($date['month'], array($month));
}

This don't work and it shouldn't :). But How can I achieve the structure dynamically.

Thank you.

I don't really understand what you're trying to do. You have a loop in your code, but where would you put multiple years in the desired result? — Barmar
– Barmar, Commented Dec 21, 2017 at 22:47
I want to put the result in $date array which I am trying to make a nested array — Hkm Sadek
– Hkm Sadek, Commented Dec 21, 2017 at 22:48
Can you show what $p['published'] looks like? The contents of it or one of them? — C Miller
– C Miller, Commented Dec 21, 2017 at 22:53

Barmar · Accepted Answer · 2017-12-21 22:52:24Z

1

Initialize the array with the keys you want, and initialize the month element with an empty array. Then fill them in in the loop.

$date = array('year' => null, 'month' => array());
foreach ($allPosts as $p) {
    $date['year'] = date("Y", strtotime($p['published']));
    $date['month'][] = date("F", strtotime($p['published']));
}

The final result will have the year of the last post, and an array of all the months.

answered Dec 21, 2017 at 22:52

Barmar

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