How to generate random password with PHP?

Question

Or is there a software to auto generate random passwords?

Answer 1

This function will include half digits and half numbers:

     function generateMixedPassword($length = 8) {
        $base = 'abcdefghijklmnopqrstuvwxyz';
        $baseD = '0123456789';

        $r = array();

        for ($i = 0; $i < $length; $i += 2) {
            $r[] = substr($base, rand(0, strlen($base) - 1), 1);
        }
        for ($i = 0; $i < $length; $i += 2) {
            $r[] = substr($baseD, rand(0, strlen($baseD) - 1), 1);
        }
        shuffle($r);

        return implode('', $r);
    }

Using the same login, it can be extended to also include special characters