MySql connection and query in PHP

<?php
    // Connection function
    function myConnection(){
        $serverName = "localhost";
        $username = "root";
        $password = "";
        $dbName = "DB_NAME";

        // Create connection
        $conn = new mysqli($serverName, $username, $password, $dbName);

        // Check connection
        if ($conn->connect_error) {
            die("Connection failed: " . $conn->connect_error);
        }
        return $conn;
    }

    // Run query
    function MySqlQuery($query){
        $conn = myConnection();
        $result = $conn->query($query);
        return $result;
    }

    // Formatted mySql result
    function getSqlResult($query){
        $conn = myConnection();

        $result = $conn->query($query);

        if ($result->num_rows > 0) {
            // output data of each row
            while($row = $result->fetch_assoc()) {
                $return[] = (object)$row; // Converting data to object by use (object)
            }
        } else {
        }
        return $return;
    }


    // Run the query
    $allUsers = getSqlResult("SELECT * FROM `users`");

    // Print result
    echo "<PRE>"; print_r($allUsers); echo "</PRE>";