<?php

function connection(): bool|int|mysqli
{

    $username = $_ENV["USER"];                                           //Get the username
    $host = $_ENV["HOST"];                                               //Get the url of the database
    $password = $_ENV["PASSWORD"];                                       //Get the password for the user selected
    $db_name = $_ENV["DATABASE"];                                        //Get the name of the database

    try {                                                                //Try to connect to the database

        return mysqli_connect($host, $username, $password,$db_name);     //Connecting to database

    }catch (mysqli_sql_exception) {                                      //If the connection failed

        return  -1;                                                      //Send a return code as -1, so insertAndMakeListUser.php can know if the connection is successful

    }
}



