# Warning: opcache_invalidate(): No such file or directory in /var/www/app/src/Cache/OpcacheManager.php:15

- **ID:** `php/opcache-invalidate-failure`
- **Domain:** php
- **Category:** runtime_error
- **Verification:** ai_generated
- **Fix Rate:** 75%

## Root Cause

The opcache_invalidate() function is called with a file path that does not exist on the filesystem, often due to a stale cache key or a file that was deleted between the time the cache was built and the invalidation attempt.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| php:8.1.0 | active | — | — |
| php:8.2.0 | active | — | — |
| php:8.3.0 | active | — | — |

## Workarounds

1. **Before calling opcache_invalidate(), check if the file exists using file_exists(): if (file_exists($filePath)) { opcache_invalidate($filePath); } else { // log or handle gracefully }** (90% success)
   ```
   Before calling opcache_invalidate(), check if the file exists using file_exists(): if (file_exists($filePath)) { opcache_invalidate($filePath); } else { // log or handle gracefully }
   ```
2. **Use opcache_get_status() to list cached files and ensure the file is actually cached before attempting invalidation: $status = opcache_get_status(false); if (isset($status['scripts'][$filePath])) { opcache_invalidate($filePath); }** (85% success)
   ```
   Use opcache_get_status() to list cached files and ensure the file is actually cached before attempting invalidation: $status = opcache_get_status(false); if (isset($status['scripts'][$filePath])) { opcache_invalidate($filePath); }
   ```
3. **If the file path is dynamic, normalize it with realpath() to resolve symlinks and relative paths before invalidation: $realPath = realpath($filePath); if ($realPath !== false) { opcache_invalidate($realPath); }** (80% success)
   ```
   If the file path is dynamic, normalize it with realpath() to resolve symlinks and relative paths before invalidation: $realPath = realpath($filePath); if ($realPath !== false) { opcache_invalidate($realPath); }
   ```

## Dead Ends

- **** — Ignoring the warning and continuing to call opcache_invalidate() with non-existent paths leads to OPcache never being properly invalidated, which can cause stale code to be served indefinitely. (90% fail)
- **** — Increasing OPcache memory limits (opcache.memory_consumption) does not address the root cause of invalid file paths, as the warning is about file existence, not memory. (80% fail)
- **** — Disabling OPcache entirely (opcache.enable=0) eliminates the warning but also removes all caching benefits, significantly degrading application performance. (70% fail)