Online PHP editor | output for UHAfJ

@ 2022-04-19T04:14:09Z

<?php

function array_rand_cryptographically_secure(array $array): int|string {
    $max = count($array) - 1;
    if ($max < 0) {
        throw new ValueError ('Argument #1 ($array) cannot be empty');
    }
    return key(array_slice($array, random_int(0, $max), 1, true));
}

$tests = [
    [5, 6, 7],
    ['a' => 1, 'b' => 2, 'c' => 3],
    ['zero', 4 => 'four', 9 => 'nine']
];
foreach ($tests as $test) {
    echo array_rand_cryptographically_secure($test) . "\n";
}

Output for 8.1.5: 0 b 0
Output for 8.1.4: 1 c 0
Output for 8.1.3: 1 b 4
Output for 8.1.2: 1 a 9
Output for 8.1.1: 0 a 9
Output for 8.0.12, 8.0.18, 8.1.0: 2 c 4
Output for 8.0.2, 8.0.11, 8.0.17: 2 b 0
Output for 8.0.13, 8.0.16: 2 b 9
Output for 8.0.15: 0 a 4
Output for 8.0.10, 8.0.14: 1 b 9
Output for 8.0.9: 0 b 4
Output for 8.0.8: 1 c 4
Output for 8.0.1, 8.0.7: 2 a 4
Output for 8.0.6: 0 c 9
Output for 8.0.5: 2 b 4
Output for 8.0.3: 0 c 4
Output for 7.4.0 - 7.4.29: Parse error: syntax error, unexpected '|', expecting '{' in /in/UHAfJ on line 3
Process exited with code 255.

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