Transfer variables to another php script

[Oskare100]

Hello,
I've one registration page where the users fills in their information, is it possible to trasnfer the things the fill in on the registration page to another script that does someting and returnes something to the first page like true/false and then the registration gives an error messange if the other php script returned false?

Something like the script "activates" another script that does something and returnes the result back to the original script.

Best Regards
Oskar R

[Merve]

Why use a second script. Why not have the page submit to itself and perform the check on that page?

[sfullman]

I usually separate coding from html like this. The file you're looking at is index.php. index_login.php is the login form with fields username and password. index_result.php is the page they see when they're logged in.

I set vars in $_SESSION which will then persist from page to page as long as the browser window is open or until the session times out.

if($_POST['username'] && $_POST['password']){
   //they are attempting to log in

   //check username and password against db or text file, whatever, if good set loginOK=true; - you'll need to write the code here

   if($loginOK){
      $_SESSION['loggedIn']=true;
      //show the success page
      require('index_result.php');
      exit;
   }else{
      $error=true;
      //show the login form again - have error notices on the page triggered by $error
      require('index_login.php');
      exit;
   }
}else{
   if($_SESSION['loggedIn']){
      //show the logged in page
      require('index_result.php');
      exit;
   }else{
      //present the login page
      require('index_login.php');
      exit;
   }
}

[cinzano]

If i'd use $SESSION everywhere in any script , what would happen?? I mean , what is the good side and the bad side using alot of $SESSION ??

I have a function named "register" to register users . in that function , I'd like to pass the variable $err to another script , and with the value of $err , my page will show the appropriate String :

function register($user_details){
if (filled_out($user_details)){
extract($user_details);
if (!($conn = db_connect())) {$err = 1 ;return false ;}
$result = $conn->query ("select * from zakaznik where username ='$username'");
if ($result->num_rows > 0) {$err= 2;
return false ;
} else {
$result = $conn->query("insert into zakaznik values('','$username',sha1('$Pswd'),'$Jmeno','$Prijmeni','$adresa',
'$Ulice','$Obec','$Mesto','$PSC','$Tel','$Email')");
if (!result) {
$err= 3;
return false ;
} else return true;
}
}
else {$err= 4 ; return false ;}
}
///////////////////////////////////

doReg.php :

switch ($err){
case 0 : {
do_html_header('the variable err is not here !!! ');
display_regis_form($_POST); break;
}

case 1 : {
do_html_header('nemohu spojit s serverem!!');
display_regis_form($POST); break;
}
case 2 : {do_html_header('The username that you have choosen is already used , try another one!!');
display_regis_form($POST); break;
}
case 3 : {
do_html_header('cant register try again later!!');
display_regis_form($POST);break;
}
case 4 : {do_html_header('You have to fill all the fields !!!');
display_regis_form($POST);break;}
default : {do_html_header('Nemohu vam evidovat !!!!! Zkuste jeste jednou za chvilku!!');
display_regis_form($_POST);break;}

}

////////////
in practice i saw that when user didn't fill all the fields in the form , the page always show that the variable $err is not available.
Should I or Should not I use the $_SESSION['err'] instead of $err , do you guys have any more ideas???
Thanks in advance!!