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Laravel cache and deployment

Fix Laravel continuing to use old settings after .env changes

When configuration is cached, Laravel does not reload .env during requests. Long-running processes such as queue workers, Octane or PHP-FPM may also retain old configuration in memory.

root@eka:~/application
php artisan config:cache
.env changed
Application still uses old DB_HOST
php artisan optimize:clear
CACHE.env may not be reloaded per request
ENVenv() should only be used in config files
WORKERLong-running processes must be restarted
DEPLOYCache rebuild belongs in the deployment sequence
01
Technical diagnosis

Editing the file does not automatically change the running process

Laravel config:cache combines all configuration into one cached file and .env is no longer loaded on subsequent requests. Therefore env() should not be called outside configuration files; application code should read values through config(). Long-running workers must also be restarted.

01

Incorrect application code

Move env() into a configuration file.

Incorrect
$adres = env('API_URL');
Correct
$adres = config('services.api.url');
02

Incomplete deployment sequence

Code updates and cache rebuilds should be deployed together.

Incorrect
git pull
composer install
Correct
git pull
composer install --no-dev --optimize-autoloader
php artisan optimize:clear
php artisan optimize
03

Stale queue worker

New jobs should start with the updated configuration.

Incorrect
.env değişti fakat worker çalışmaya devam ediyor
Correct
php artisan queue:restart
02
SSH and terminal

Measure and verify logs before guessing

01

Inspect cache state

Checks the active environment and generated cache files.

php artisan about --only=environment
php artisan config:show database
ls -lah bootstrap/cache
02

Clear Laravel optimization caches

Clears configuration, route, event and view optimization caches.

php artisan optimize:clear
03

Rebuild production caches

Run after verifying the application does not contain non-cacheable route closures.

php artisan config:cache
php artisan route:cache
php artisan view:cache
04

Restart long-running processes

Run only the commands relevant to your stack.

php artisan queue:restart
php artisan octane:reload 2>/dev/null || true
systemctl reload php8.3-fpm
03
Controlled implementation

Safe step-by-step resolution sequence

01

Step 1

Identify the stale value using config:show.

02

Step 2

Find env() calls outside configuration files.

03

Step 3

Move values to config/services.php or the appropriate configuration file.

04

Step 4

Run optimize:clear and verify the new .env value.

05

Step 5

Rebuild production cache files.

06

Step 6

Reload queue, Octane and PHP-FPM processes in a controlled manner.

04
Error dictionary

Map similar-looking errors to the correct cause

4 entries
Error

env() returns null

env() is called outside config files while configuration is cached.

Error

Eski DB_HOST kullanılıyor

bootstrap/cache/config.php contains the old value.

Error

Queue eski API anahtarını kullanıyor

The worker is still running with old in-memory configuration.

Error

Route cache createulamıyor

A non-cacheable route closure or unserializable structure exists.

No matching error was found.

What to avoid

Actions that make the problem worse

  • Do not edit generated cache files manually in production.
  • Do not run cache:flush on shared Redis without impact analysis.
  • Do not call env() directly in controllers or services.
  • Use the same deployment sequence on every web node.
Success verification

How do you know the fix is complete?

  • config:show displays the new value.
  • Web requests and Artisan use the same configuration.
  • New queue jobs run with updated settings.
  • bootstrap/cache ownership and timestamps are correct.
05
FAQ

Frequently asked technical questions

Is optimize:clear required after every .env change?

If configuration is cached, it must be rebuilt. In development without config cache, most values are read on the next request.

config:clear or optimize:clear?

config:clear is enough for configuration only. optimize:clear is broader and removes Laravel optimization caches after deployment.

Must PHP-FPM always be restarted?

Not for every .env change; a controlled reload may be needed when OPcache, preload or long-running processes retain stale code or values.

06
Topic cluster

Related Laravel and server error guides

Official technical sources

Resolution steps were verified against primary documentation

Laravel Configuration CacheLaravel DeploymentLaravel CacheLaravel Directory Structure
EKA SOFTWARE AND INFORMATION SYSTEMS

Keep Laravel configuration consistent across web, CLI and worker processes

We implement permanent fixes by reviewing Laravel, PHP-FPM, Nginx, Apache, MySQL, cPanel and Plesk layers together with their logs.

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