<?php
// Array representing a possible record set returned from a database
),
array(3245,'Sally','Smith' ),
array(5342,'Jane','Jones' ),
)
);
$first_names = array_column($records, 1);
?>
// your code goes here
PD9waHAKLy8gQXJyYXkgcmVwcmVzZW50aW5nIGEgcG9zc2libGUgcmVjb3JkIHNldCByZXR1cm5lZCBmcm9tIGEgZGF0YWJhc2UKJHJlY29yZHMgPSBhcnJheSgKICAgIGFycmF5KDIxMzUsJ0pvaG4nLCdEb2UnCiAgICApLAogICAgYXJyYXkoMzI0NSwnU2FsbHknLCdTbWl0aCcKICAgICksCiAgICBhcnJheSg1MzQyLCdKYW5lJywnSm9uZXMnCiAgICApLAogICAgYXJyYXkoNTYyMywnUGV0ZXInLCdEb2UnCiAgICApCik7CiAKJGZpcnN0X25hbWVzID0gYXJyYXlfY29sdW1uKCRyZWNvcmRzLCAxKTsKcHJpbnRfcigkZmlyc3RfbmFtZXMpOwo/PgovLyB5b3VyIGNvZGUgZ29lcyBoZXJl