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@ 2017-07-11T14:52:34Z

<?php

function password($len = 12) {
    $chars = 'abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ23456789';
    $len = strlen($chars);
    $multiplier = floor(256 / $len);
    
    $byte = ord(openssl_random_pseudo_bytes(1)[0]);
    
    return $byte;
}

echo password();

Output
Performance
VLD
References
Branches

floor: documentation ( source)
ord: documentation ( source)

preferences:dark modelive preview

35.85 ms | 402 KiB | 5 Q