User class

User.php

<?php

/*
 * @author Radu Topala <radu.topala@trisoft.ro>
 */

class User
{
    protected $id;

    /**
     * @var string
     */
    protected $username;

    /**
     * @var string
     */
    protected $email;

    /**
     * @var string
     */
    protected $password;
    
    /**
     * @var string
     */
    protected $firstName;
    
    /**
     * @var string
     */
    protected $lastName;

    /**
     * @var \DateTime
     */
    protected $lastLogin;

    /**
     * @var array
     */
    protected $roles;
    
    /**
     * Some data array example for __get/__set
     *
     * @var array
     */
    private $data;

    public function __construct()
    {
        $this->roles = array();
    }

    public function getFirstName($firstName)
    {
        return $this->firstName;
    }
    
    public function getLastName($lastName)
    {
        return $this->lastName;
    }
    
    public function setFirstName($firstName)
    {
        $this->firstName = $firstName;
        
        return $this;
    }
    
    public function setLastName($lastName)
    {
        $this->lastName = $lastName;
        
        return $this;
    }

    public static function isValidPassword($pwd)
    {
        $valid = true;
        
        if( strlen($pwd) < 8 ) {
        	$errors[]= "Password too short! <br />";
        }
        
        if( strlen($pwd) > 20 ) {
        	$errors[]= "Password too long! <br />";
        }
        
        if( !preg_match("#[0-9]+#", $pwd) ) {
        	$errors[]= "Password must include at least one number! <br />";
        }
        
        if( !preg_match("#[a-z]+#", $pwd) ) {
        	$errors[]= "Password must include at least one letter! <br />";
        }
        
        if( !preg_match("#[A-Z]+#", $pwd) ) {
        	$errors[]= "Password must include at least one CAPS! <br />";
        }      
        
        if( !preg_match("#\W+#", $pwd) ) {
        	$errors[]= "Password must include at least one symbol! <br />";
        }
        
        $valid = isset($errors)?false:true;

        return $valid;
    }
    
    /**
     * Adds a role to the user.
     *
     * @param string $role
     *
     * @return User
     */
    public function addRole($role)
    {
        $role = strtoupper($role);
        
        if (!in_array($role, $this->roles, true)) {
            $this->roles[] = $role;
        }

        return $this;
    }

    /**
     * Returns the user unique id.
     *
     * @return mixed
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * @return string
     */
    public function getUsername()
    {
        return $this->username;
    }

    /**
     * Gets email.
     *
     * @return string
     */
    public function getEmail()
    {
        return $this->email;
    }

    /**
     * Gets the encrypted password.
     *
     * @return string
     */
    public function getPassword()
    {
        return $this->password;
    }

    /**
     * Gets the last login time.
     *
     * @return \DateTime
     */
    public function getLastLogin()
    {
        return $this->lastLogin;
    }

    /**
     * Returns the user roles
     *
     * @return array The roles
     */
    public function getRoles()
    {
        return $this->roles;
    }

    /**
     * @param string $role
     *
     * @return Boolean
     */
    public function hasRole($role)
    {
        return in_array(strtoupper($role), $this->getRoles(), true);
    }

    /**
     * Removes a role to the user.
     *
     * @param string $role
     */
    public function removeRole($role)
    {
        if (false !== $key = array_search(strtoupper($role), $this->roles, true)) {
            unset($this->roles[$key]);
            $this->roles = array_values($this->roles);
        }
    }

    /**
     * Sets the username.
     *
     * @param string $username
     *
     * @return User
     */
    public function setUsername($username)
    {
        $this->username = $username;

        return $this;
    }

    /**
     * Sets the email.
     *
     * @param string $email
     *
     * @return User
     */
    public function setEmail($email)
    {
        $this->email = $email;

        return $this;
    }

    /**
     * Sets the hashed password.
     *
     * @param string $password
     *
     * @return User
     */
    public function setPassword($password)
    {
        $this->password = $password;

        return $this;
    }

    /**
     * Sets the last login time
     *
     * @param \DateTime $time
     *
     * @return User
     */
    public function setLastLogin(\DateTime $time)
    {
        $this->lastLogin = $time;

        return $this;
    }

    /**
     * Sets the roles of the user.
     *
     * This overwrites any previous roles.
     *
     * @param array $roles
     *
     * @return User
     */
    public function setRoles(array $roles)
    {
        $this->roles = array();

        foreach ($roles as $role) {
            $this->addRole($role);
        }

        return $this;
    }

    public function __toString()
    {
        return (string) $this->getUsername();
    }
    
    public function __set($name, $value)
    {
        $this->data[$name] = $value;
    }

    public function __get($name)
    {
        if (array_key_exists($name, $this->data)) {
            return $this->data[$name];
        }
    }
}

$test = new User();
$test->setUsername('radutopala');
$test->setFirstName('Radu');
$test->setLastName('Topala');

echo "Password xyz is ".(User::isValidPassword('xyz')?'valid':'invalid')."<br>";
echo "Password xyz12 is ".(User::isValidPassword('xyz12')?'valid':'invalid')."<br>";
echo "Password xyz12H$6 is ".(User::isValidPassword('xyz12H$6')?'valid':'invalid')."<br>";

//Setting a private property through __set
$test->alfa = 'xyz';
echo "Accessing a private property through __get: ".$test->alfa."<br>";