登录验证时刷新页面

Question

In a PHP Code, when i am trying to validate basic login validation (empty field, numeric field, etc.), my page gets refresh and all the already entered data gets away. My sample code:

if(isset($_POST['Submit']))
{

// username and password sent from form 
$MailId=$_POST['MailId']; 
$Password=$_POST['Password']; 


  if(empty($_POST['MailId'])) 
  {
    $MerrorMessage = "You forgot to enter a MailId!";
  }

  else if(!preg_match("/^[_\.0-9a-zA-Z-]+@([0-9a-zA-Z][0-9a-zA-Z-]+\.)+[a-zA-Z]{2,6}$/", $MailId))
  {
    $MailformaterrorMessage = "Email ID format is not correct!";
  }


  if(empty($_POST['Password'])) 
  {
    $PerrorMessage = "You forgot to enter a Password!";
  }


  else
    {
      main Logic
    .....

  }

Any suggestions if without using Javascript, page refresh can be avoided ?

Answer 1

Use AJAX instead to validate it to the server without RELOADING. Read more about how AJAX works and its uses .