PHP生成随机用户名

Question

I am doing a little function to generate random usernames, as the following:

public static function nicknames($data) {
    if ($data['request'] == 'nickAvailable') {

        foreach ($data as $value)
            if (is_array($value))
                $nick = $value['nickname'];

        $random = rand(2, 2);
        $nickname = $nick . '_' . $random;

        $count = 3;
        $nicknames = array();
        for ($i = 1; $i <= $count; $i++) {
            $select = self::$db->select('users', 'nickname', array('nickname' => $nickname));

            if (count($select) == 0) {
                $nicknames[] = $nickname;
            } else {
                $count = $count + 1;
            }
        }

        $array = array("status" => 0,
            "errors" => $nicknames,
            "data" => array());

        model::json($array);
    }

}

The only problem I have is that $random is just executed one time and not on each loop. I need 3 different usernames to be in the array, and they must be different from each other. How can I edit my code to achieve this? Thanks for any suggestion

Answer 1

Place the random number generator and nickname building variable at the start of your loop. Also increase the range of numbers that rand is allowed to return, as it will always return 2 at the moment

$usernames = array();
do {

 // inside generate random number, 
 // build nickname, 
 // query to see if its taken, 
 // and if NOT taken, add to the usernames array

} while(count($usernames) < 3);