php - phpdotenv not working with me and showing blank page

Solution:

For anyone who finds this and wonders why theres is not working. getenv was marked unsafe a while back, you must instantiate dotenv in your script with Dotenv::createUnsafeImmutable to be able to use getenv() rather than $_ENV, although it is not advised to do so.

Solution:

I had the same problem as you, but I solved it with the following code.

<?php
  require './vendor/autoload.php';
  Dotenv\Dotenv::createImmutable(__DIR__)->load();
  $stripeSecretKey = $_ENV['STRIPE_SECRET_KEY'];
  echo $stripeSecretKey;

.env file content

STRIPE_SECRET_KEY=sk_test_1234567890123456

Solution:

I Used an old version From Node.js and an old version from vlucas/phpdotenv and it works!