痞客興的部落格

本範例取自http://stackoverflow.com/questions/4356289/php-random-string-generator

function generateRandomString($length = 10) {
    $characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
    $charactersLength = strlen($characters);
    $randomString = '';
    for ($i = 0; $i < $length; $i++) {
        $randomString .= $characters[rand(0, $charactersLength - 1)];
    }
    return $randomString;
}

之後要取個亂數值,只要呼叫這個函數就可以了,像下面的做法

$rn = generateRandomString();

$rn就任你自己運用了