登录失败重定向到其他页面

Question

I am working on my website, and I incorporated the login form in the homepage, not a separate page. It works great unless you have an error "enter wrong info" Then the displayed errors mess up the form margins and formatting. So I would like to have it redirect to a separate page (login.php) if the user entered the wrong details. My question is how to do that and also is it possible to keep the displayed erros? Thanks in advanced, Josh

Here is my code for handling errors:

/**
    * login - The user has submitted his username and password
    * through the login form, this function checks the authenticity
    * of that information in the database and creates the session.
    * Effectively logging in the user if all goes well.
    */
   function login($subuser, $subpass, $subremember){
      global $database, $form;  //The database and form object
  /* Username error checking */
  $field = "user";  //Use field name for username
  if(!$subuser || strlen($subuser = trim($subuser)) == 0){
     $form->setError($field, "* Username not entered");
  }
  else{
     /* Check if username is not alphanumeric */
     if(!preg_match("/^([0-9a-z])*$/i", $subuser)){
        $form->setError($field, "* Username not alphanumeric");
     }
  }

  /* Password error checking */
  $field = "pass";  //Use field name for password
  if(!$subpass){
     $form->setError($field, "* Password not entered");
  }

  /* Return if form errors exist */
  if($form->num_errors > 0){
     return false;
  }



  /* Checks that username is in database and password is correct */
  $subuser = stripslashes($subuser);
  $result = $database->confirmUserPass($subuser, md5($subpass));

  /* Check error codes */
  if($result == 1){
     $field = "user";
     $form->setError($field, "* Username not found");
  }
  else if($result == 2){
     $field = "pass";
     $form->setError($field, "* Invalid password");
  }

  /* Return if form errors exist */
  if($form->num_errors > 0){
     return false;
  }

  /* Username and password correct, register session variables */
  $this->userinfo  = $database->getUserInfo($subuser);
  $this->username  = $_SESSION['username'] = $this->userinfo['username'];
  $this->userid    = $_SESSION['userid']   = $this->generateRandID();
  $this->userlevel = $this->userinfo['userlevel'];

  /* Insert userid into database and update active users table */
  $database->updateUserField($this->username, "userid", $this->userid);
  $database->addActiveUser($this->username, $this->time);
  $database->removeActiveGuest($_SERVER['REMOTE_ADDR']);

  /**
   * This is the cool part: the user has requested that we remember that
   * he's logged in, so we set two cookies. One to hold his username,
   * and one to hold his random value userid. It expires by the time
   * specified in constants.php. Now, next time he comes to our site, we will
   * log him in automatically, but only if he didn't log out before he left.
   */
  if($subremember){
     setcookie("cookname", $this->username, time()+COOKIE_EXPIRE, COOKIE_PATH);
     setcookie("cookid",   $this->userid,   time()+COOKIE_EXPIRE, COOKIE_PATH);
  }

  /* Login completed successfully */
  return true;

}

Answer 1

You can redirect with the header function. http://php.net/manual/en/function.header.php

header('Location: http://www.example.com/');