Normalize Email

user.php

    /**
     * @param $email
     * @return string
     */
    public function normaliseEmail($email)
    {
        if (ends_with($email, 'gmail.com')) {

            $segments = explode('@', $email);

            // hmm, we just need the part before + sign!
            $beforePlus = strstr($segments[0], '+', true);
            $beforeAt = $beforePlus ? $beforePlus : $segments[0];

            // let's check for periods! we don't need them too.
            $beforeAt = str_replace('.', '', $beforeAt);

            // let's concat them again.
            $email = $beforeAt . '@' . $segments[1];
        }

        return strtolower($email);
    }