<?php
function getDatabaseConnection($dbname = 'tcp') {
    $host = 'localhost';
    //$dbname = 'tcp';
    $username = 'root';
    $password = '';

    if(strpos($_SERVER['HTTP_HOST'], 'herokuapp') !== false) {
        $url = parse_url(getenv("CLEARDB_DATABASE_URL"));
        $host = $url["host"];
        $dbname = substr($url["path"], 1);
        $username = $url["user"];
        $password = $url["pass"];
    }

    $dbConn = new PDO("mysql:host=$host;dbname=$dbname", $username, $password);
    $dbConn -> setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    return $dbConn;
}
?>