Online PHP editor | output for Y60bn

@ 2018-04-09T09:22:07Z

<?php

$a = 1234455;
$b = 54456;
function digits_in_both($x, $y)
{
    $in_both = [];
    $split_y = str_split($y);
    foreach(str_split($x) as $n) {
        $key = array_search($n, $split_y);
        if($key !== false) {
            $in_both[] = $n;
            unset($split_y[$key]);
        }
    }

    return $in_both;
}

$in_both = digits_in_both(123445, 54456);
var_export($in_both);
var_dump(count($in_both));

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 => '4', 1 => '4', 2 => '5', )int(3)
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 => '4', 1 => '4', 2 => '5', )int(3)

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