Importing existing login datebase

<?php

class pmUser extends modUser {
    function __construct(xPDO & $xpdo) {
        parent::__construct($xpdo);
        $this->set('class_key', 'pmUser');
    }

    /**
     * Determines if the provided password matches the hashed password stored for the user.
     *
     * @param string $password The password to determine if it matches.
     * @param array $options Optional settings for the hashing process.
     * @return boolean True if the provided password matches the stored password for the user.
     */
    public function passwordMatches($password, array $options = array()) {
        $match = false;


        $hashedPassword = md5(addslashes($password) . "xxxxxxxxxxxxxxxx");//code from old system deleted

        $_SESSION['hashings']['hashedpw'] = $hashedPassword;
        $_SESSION['hashings']['thispw'] = $this->get('password');

        $match = ($this->get('password') === $hashedPassword);
        if (!$match && $this->xpdo->getService('hashing', 'hashing.modHashing')) {
            $options = array_merge(array('salt' => $this->get('salt')), $options);
            $hashedPassword = $this->xpdo->hashing->getHash('', $this->get('hash_class'))->hash($password, $options);
            $match = ($this->get('password') === $hashedPassword);
        }

        return $match;
    }


    /**
     * The modUser password field is hashed automatically, and prevent sudo from being set via mass-assignment
     *
     * {@inheritdoc}
     */
    public function set($k, $v = null, $vType = '', $checkhash = true) {
        if (!$this->getOption(xPDO::OPT_SETUP)) {
            if ($k == 'sudo')
                return false;
        }
        if ($checkhash && in_array($k, array('password', 'cachepwd')) && $this->xpdo->getService('hashing', 'hashing.modHashing')) {
            if (!$this->get('salt')) {
                $this->set('salt', md5(uniqid(rand(), true)));
            }
            $vOptions = array('salt' => $this->get('salt'));
            $v = $this->xpdo->hashing->getHash('', $this->get('hash_class'))->hash($v, $vOptions);
        }
        return modPrincipal::set($k, $v, $vType);
    }

}