env() returns null (config cached) Laravel Origin: Application & API OSI layer 7 · Application Last updated 4 Nov 2026

Laravel: .env changes ignored / env('X') returns null after php artisan config:cache

After config:cache, Laravel no longer reads .env, so env() calls outside config files return null and edits to .env have no effect.

Exact message you may see env() returns null after config:cacheLaravel .env changes not working.env not being read Laravel config cachedenv('APP_DEBUG') returns nullLaravel changes to .env file not taking effect
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Seen on: Laravel PHP

Meaning

When config is cached, .env isn't loaded; only values compiled into config/*.php exist. Use config('app.x') in app code and call env() only inside config files. After changing .env run php artisan config:clear (or config:cache again).

Common causes

  • env() used in controllers/models instead of config()
  • .env edited but config cache not rebuilt
  • Different .env on the server
  • Cache stored from another environment
  • config/*.php missing the key

⚡ Quick fix

  1. Read values via config('services.key') and define them in config files
  2. php artisan config:clear after editing .env
  3. Rebuild caches on deploy: php artisan config:cache

Detailed fix by platform

Laravel

  1. php artisan optimize:clear clears config, route, view and event caches

How to diagnose

  1. Cached — bootstrap/cache/config.php exists?
  2. Usage — env() outside config?
  3. Deploy — Cache step?

🔧 Still not fixed?

Many errors look alike. If the steps above didn’t solve it, one of these is probably what you’re facing:

Where this error sits

Origin: Application & API. Errors that are often confused with or caused by this one (click to open):

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