Online PHP editor | output for 2fVhp

@ 2017-08-09T23:07:27Z

<?php
declare(strict_types=1);

$incomingArray = [
    'foo' => 'abc',
    'bar' => null,
    'candy' => 1,
    'foobar' => true,
    'df' => 'this should not be in results',
];

$myKeyCheck = ['foo', 'bar', 'candy', 'foobar', 'barfoo', 'fd'];

$filter = function($a) {
    return is_string($a);
};

\var_dump(\array_filter(\array_intersect_key($incomingArray, \array_flip($myKeyCheck)), $filter));

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(1) { ["foo"]=> string(3) "abc" }
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(1) { ["foo"]=> string(3) "abc" }

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