<?php
$plan = [
[
'id' => 2,
'subscr_unit' => 'D',
'subscr_period' => '',
'subscr_fee' => ''
],
[
'id' => 3,
'subscr_unit' => 'M,Y',
'subscr_period' => '1,1',
'subscr_fee' => '90,1000'
],
[
'id' => 32,
'subscr_unit' => 'M,Y',
'subscr_period' => '1,1',
'subscr_fee' => '150,1500'
],
];
var_export(array_column($plan, null, 'id'));
preferences:
54.09 ms | 402 KiB | 5 Q