Undefined function getTeam() - php

Question

So what I want to do is to show who's in a team. I've created a function called getTeam().
class admin
{
private $db;
public function __construct($conn)
{
return $this->db;
}
public function getTeam($teamname)
{
try
{
$sql = "SELECT * FROM `tbl_players` WHERE EXISTS (SELECT id FROM `tbl_teams` WHERE team_name=:team_name)";
$stmt = $this->db->prepare($sql);
$stmt->bindparam(":team_name", $teamname);
$stmt->execute();
return $stmt;
}
catch(PDOException $e)
{
echo $e->getMessage();
}
}
}
Here is my dbconnect I'm using
session_start();
$DB_host = "localhost";
$DB_user = "root";
$DB_pass = "";
$DB_name = "project_fifa";
try
{
$conn = new PDO("mysql:host={$DB_host};dbname={$DB_name}",$DB_user,$DB_pass);
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
}
catch(PDOException $e)
{
echo $e->getMessage();
}
include ('assets/classes/admin.php');
$user = new admin($conn);
So now I'm trying to use the function here
require('../dbconnect.php');
if(isset($_POST['findteam'])){
$teamname = $_POST['teamname'];
getTeam($teamname);
}
It can't find the function and I don't know why.

Answer 1

If you are doing code with OOPS, First you have to learn some basics about it Read it
Object(new) :
To create an instance of a class, the new keyword must be used. An object will always be created unless the object has a constructor defined that throws an exception on error. Classes should be defined before instantiation (and in some cases this is a requirement).
If a string containing the name of a class is used with new, a new instance of that class will be created. If the class is in a namespace, its fully qualified name must be used when doing this.
$adminObject = new admin();
$adminObject->getTeam($teamname);