Online PHP editor | output for AUXSe

@ 2018-04-24T10:00:11Z

<?php

$a = new stdClass();
$a->id = 17;
$a->res_id = 10;
$a->cat_id = 3;

$b = new stdClass();
$b->id = 18;
$b->res_id = 10;
$b->cat_id = 4;

$c = new stdClass();
$c->id = 52;
$c->res_id = 19;
$c->cat_id = 1;

$d = new stdClass();
$d->id = 53;
$d->res_id = 19;
$d->cat_id = 3;

$e = new stdClass();
$e->id = 54;
$e->res_id = 19;
$e->cat_id = 4;

$array = Array
(
    $a,
    $b,
    $c,
    $d,
    $e
);

$result = array_map(function($x){
    return $x->cat_id;
}, $array);

print_r($result);

Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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] => 3 [1] => 4 [2] => 1 [3] => 3 [4] => 4 )
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] => 3 [1] => 4 [2] => 1 [3] => 3 [4] => 4 )

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