Online PHP editor | output for llMrL

@ 2017-07-09T20:47:02Z

<?php
// Array representing a possible record set returned from a database
$records = array(
    'a' => array(
        'id' => 2135,
        'first_name' => 'John',
        'last_name' => 'Doe',
    ),
    'b' => array(
        'id' => 3245,
        'first_name' => 'Sally',
        'last_name' => 'Smith',
    ),
    'c' => array(
        'id' => 5342,
        'first_name' => 'Jane',
        'last_name' => 'Jones',
    ),
    'd' => array(
        'id' => 5623,
        'first_name' => 'Peter',
        'last_name' => 'Doe',
    )
); 
$first_names = array_column($records, 'first_name');
print_r($first_names);

Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: Array ( [0] => John [1] => Sally [2] => Jane [3] => Peter )
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Array ( [0] => John [1] => Sally [2] => Jane [3] => Peter )

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