Session in PHP Function - php

Question

I'm new in php i create one function from where i'm login my session now i want to use this function for multiple time like for admin login too how i can use this function for multiple session. I updated my answer as per instruction of PacMan. Rightnow I'm doing it like this:
Code For USER & Admin Login:
//Check Wheather User Logged in or Not
if (isset($_SESSION['LoggedID']) && !empty($_SESSION['LoggedID'])){
$tableName = "prd_rgistration";
$id = $_SESSION['UserLogin'];
}else{
$tableName = "user_register";
$id = $_SESSION['AdminID'];
}
//Check Wheather User Logged in or Not
function Logged(){
if(LoggedIn()){
global $conn;
return $conn->query(sprintf('SELECT * FROM ' + $tableName + ' WHERE id = \'%d\'',$id))->fetchObject();
}else{
return (object)array();
}
}
function LoggedIn(){
return isset($id) && intval($id);
}
function redirect($Location){
header(sprintf('Location: %s',$Location),true,301);
exit;
}
if(LoggedIn()){
$User = Logged();
}
Admin Login Page Code
if($email_err == "" && $password_err == ""){
$Code = 0;
try{
$get_data = $conn->query("SELECT * FROM `user_register` WHERE `reg_email` = '$email' AND `reg_pass` = '$password' LIMIT 1");
if($get_data->rowCount() > 0){
$_SESSION['AdminID'] = $get_data->fetchObject()->id;
redirect('/domain.com/temp/admin/index.php');
}else{
$error = '<div class="alert alert-info">Invalid Email/Password</div>';
}
}catch(PDOException $E){
$Code = $E->getCode();
}
}
User Login Page Code
if($email_err == '' && $user_pass_err == ''){
$Code = 0;
try{
$get_data = $conn->query("SELECT * FROM `prd_rgistration` WHERE `email_db` = '$email' AND `password_db` = '$user_pass' LIMIT 1");
if($get_data->rowCount() > 0){
$_SESSION['UserLogin'] = $get_data->fetchObject()->id;
redirect('/domain.com/temp/index.php');
//redirect('/domain.com/index.php');
}else{
$error = '<div class="alert alert-info">Invalid Email/Password</div>';
}
}catch(PDOException $E){
$Code = $E->getCode();
}
}
Now It's giving Error Undefined AdminID and also not login user.

Answer 1

i can suggest you to follow this procedure it may be helpful , by changing the table name to a variable
if (isset($_SESSION['LoggedID']) && !empty($_SESSION['LoggedID'])){
$tableName = "prd_rgistration";
$id = $_SESSION['LoggedID'];
}else if(isset($_SESSION['adminID']) && !empty($_SESSION['adminID'])){
$tableName = "admin";
$id = $_SESSION['adminID']
}
//Check Wheather User Logged in or Not
function Logged(){
if(LoggedIn()){
global $conn;
return $conn->query(sprintf('SELECT * FROM '$tableName' WHERE id = \'%d\'',$id))->fetchObject();
}else{
return (object)array();
}
}
and here is it you have parametred only one function for both of usses admin and user login