/home/mip/public_html_/old-website/employerxxx/login.php
<?php

	require_once("func_all.php");
	
	$db=db_connect();
	
	if (!$db) {
		echo "<center> Error connecting to database. </center>\n";
		exit;
	}
	
	session_start();	
  
	
	if ($submit) {
		 if (!$username || !$password ){
     		$msg = "You did not fill in all the fields!";
	      display_login_form($msg);
	      exit;
     }
     else{// both fields are filled in
		 		if ($myprincipalid = login($username,$password)){
					 $principal_valid_user = $username;
					 session_register("myprincipalid");
					 session_register("principal_valid_user");
					 setcookie ("myprincipalid", $myprincipalid,time()+7200);
					 setcookie ("principal_valid_user", $principal_valid_user,time()+7200);
					 header ("Location: mainpage.php");
					 exit;
				}
				else{ // no array fetch
           $msg = "Either username/password is incorrect or User account has expired.";
					 display_login_form($msg);
					 exit;
        }// end of else no array fetch  
  	}//else end of both fields are field in    
	}// end of if $submit 
	else {
			 
			 display_login_form(); //login_form();
  }
?>