fixing the old project errors

controllers/group.php

@@ -1,7 +1,4 @@
 <?php
-error_reporting(0);
-session_start();
-
 if(isset($_SESSION['user']))
 {
 	$user=$_SESSION['user'];
@@ -9,6 +6,7 @@ if(isset($_SESSION['user']))
 else
 {
 	header("Location: ../views/signinPage.php?message=".urlencode("Login Again!"));
+	exit();
 }
 $aerror = "";
 if(isset($_POST['addGroup']))
@@ -16,12 +14,13 @@ if(isset($_POST['addGroup']))
 	$name = $_POST['name'];
 	
 	include_once('../models/group.php');
-	if(group::insertGroup($name))
+	$groupId = group::insertGroup($name);
+	if($groupId)
 	{
-		if(group::insertMember($name, $user['username']))
+		if(group::insertMember($groupId, $user['username']))
 		{
 			$aerror = "Group Created!";
-			header("Location: ../views/allgroups.php");	
+			header("Location: ../views/allgroups.php");
 		}
 	}
 	else