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Docker Compose .env File Not Loading: Common Fixes - Fix 'Port Already Used by Another Container' in Docker Compose-Resolve Nginx 502 with Docker and PHP-FPM

2026-07-28 14:40:20
Docker Compose .env File Not Loading: Common Fixes - Fix 'Port Already Used by Another Container' in Docker Compose-Resolve Nginx 502 with Docker and PHP-FPM

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.