<?php
$servername = $_ENV['DB_HOSTNAME'];
$username = $_ENV['DB_USERNAME'];
$password = $_ENV['DB_PASS'];
$dbname = $_ENV['DB_NAME'];

try {
  $conn = new PDO("mysql:host=$servername;dbname=$dbname", $username, $password);
  // set the PDO error mode to exception
  $conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
  $conn->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
  $conn->setAttribute(PDO::ATTR_EMULATE_PREPARES, false);
} catch(PDOException $e) {
  echo json_encode(["error" => "error.connect.faild", "exc" => $e->getMessage()]);
  exit;
}