QA
Senior LevelLaravel

How do you prevent memory leaks and global state contamination in Laravel Octane?

❓ Interview Prompt: Explain Octane memory management, request-scoped singletons, avoiding static property mutation, and resets via Octane listeners.

Because Laravel Octane keeps worker processes alive in memory across requests, storing request-specific data in singletons, static properties, or global arrays causes Global State Contamination (data leaking from User A to User B!).

Prevention Rules:

1
Never mutate static class properties during a request.
2
Use 'scoped()' bindings instead of 'singleton()' for request-bound services.
3
Register reset listeners in 'config/octane.php'.

Code Implementation Example

php
<?php
// In AppServiceProvider::register()
// ❌ LEAK: singleton() persists across requests in Octane!
// ✅ FIX: scoped() resets binding instance for every new HTTP request:
$this->app->scoped(CurrentTenant::class, function ($app) {
    return new CurrentTenant();
});
💡Preventing Octane state leaks using scoped service container bindings.
🎯 Interview Key Takeaway

Use scoped() bindings and avoid static property mutations to prevent memory leaks and state contamination in Laravel Octane.

#Octane State Leaks#Memory Leaks#Scoped Bindings#Senior
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