<?php
$records = array(
array(
1 => 2135,
'first_name' => 'John',
'last_name' => 'Doe',
),
array(
1 => 3245,
'first_name' => 'Sally',
'last_name' => 'Smith',
),
array(
1 => 5342,
'first_name' => 'Jane',
'last_name' => 'Jones',
),
array(
1 => 5623,
'first_name' => 'Peter',
'last_name' => 'Doe',
)
);
var_dump(array_column($records, 1));
preferences:
55.51 ms | 402 KiB | 5 Q