Online PHP editor | output for nRkvn

@ 2017-06-16T17:36:34Z

<?php

$items = [
    'some',
    'test',
    'stuff',
    1,
];

$filtered = array_filter($items, function ($item) {
    return is_string($item);
});

$capitalized = array_map(function ($item) {
    return strtoupper($item);
}, $filtered);

$result = array_reduce($capitalized, function ($carry, $item) {
    return $carry . $item;
});

print_r($result);

$result = '';
foreach ($items as $item) {
    if (is_string($item)) {
        $result .= strtoupper($item);
    }
}

print_r($result);

Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 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: SOMETESTSTUFFSOMETESTSTUFF
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 SOMETESTSTUFFSOMETESTSTUFF

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