Create a random password with PHP

Some websites require access control, and sometimes you may need to generate a password for a user. Here’s a simple function that can do just that.

The $base-variable contains the characters allowed in the password. The supplied string may be changed, but the selected charaters should exist on all keyboards (as far as I know). When calling the function, you can specify the lenght of the password you want. Simple, right?

function makePassword($desiredLenght = 8) {
    $password = '';
    $base = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';

    for($i=0;$i<$desiredLenght;$i++) {
        $password .= $base\[(rand(0, (strlen($base)-1)))\];
    return $password;