19. Enterprise Generative AI Integration: LLM Tool Calling, Vector Search & OpenAI/Claude APIs • PHP 8+ & Laravel 11/12: Enterprise Full-Stack AI Developer • Rishabh Ki Kaksha

PHP 8+ & Laravel 11/12: Enterprise Full-Stack AI Developer › 19. Enterprise Generative AI Integration: LLM Tool Calling, Vector Search & OpenAI/Claude APIs

50 mins

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Course Syllabus

Module 1: Modern PHP 8.2/8.3 Internals, Type System & CLI

01. PHP 8.2/8.3 Evolution: JIT Compiler, Zend VM Internals & Strict Typing System 02. Control Flow, Pattern Matching with match(), First-Class Callables & Fiber Concurrency 03. Modern OOP PHP: Constructor Promotion, Readonly Classes, Traits, Enums & Attributes

Module 2: Dependency Management, Autoloading & Database Engineering

04. Composer Mastery: PSR-4 Autoloading, Custom Packages & Composer Scripts 05. PDO Database Layer: Prepared Statements, SQL Injection Defense & Transaction Savepoints 06. Memory Profiling, Garbage Collection (Zend GC) & OPcache Performance Tuning

Module 3: Laravel 11/12 Core Architecture & Service Container

07. Laravel 11/12 Architecture: Request Lifecycle, bootstrap/app.php & Service Providers 08. The Inversion of Control (IoC) Service Container & Automatic Dependency Injection 09. Middleware Pipeline, Custom Global Pipeline Handlers & Terminating Middleware 10. Advanced Routing, Route Model Binding & Rate Limiting (Throttle Middleware)

Module 4: Eloquent ORM Masterclass & High-Scale Database Systems

11. Eloquent ORM Internals: Active Record vs Data Mapper, Eager vs Lazy Loading (N+1 Problem) 12. Advanced Relationships: Polymorphic, Many-to-Many with Pivots & HasManyThrough 13. Query Scopes, Custom Eloquent Casts, Mutators/Accessors & Raw Query Optimizations

Module 5: High-Performance Queues, WebSockets & Security Architecture

14. Laravel Queues & Background Jobs: Redis Drivers, Horizon, Retries & Dead Letter Queues 15. Real-Time Event Broadcasting with Laravel Reverb, WebSockets & Echo 16. Authentication & API Security: Laravel Sanctum, Passport (OAuth2) & Policy Gates (RBAC) 17. Security Hardening: CSRF, XSS, Mass Assignment Protection & Encrypted Cookies

Module 6: Enterprise Full-Stack AI, Testing & Cloud Deployment

18. Testing Masterclass: Pest PHP, PHPUnit, Database Transactions & Mocking HTTP Calls 19. Enterprise Generative AI Integration: LLM Tool Calling, Vector Search & OpenAI/Claude APIs 20. Production Deployment: Laravel Octane (FrankenPHP/Swoole), PM2/Supervisor & Docker Deployments

Interactive Lesson Studio

# 19. Enterprise Generative AI Integration: LLM Tool Calling, Vector Search & OpenAI/Claude APIs

> PHP 8+ & Laravel 11/12 Notes by Rishabh - Topic 19

---

### 1. Direct LLM Integration in Laravel 🤖

Calling OpenAI / OpenRouter / Anthropic APIs with streaming responses and structured JSON tool calling:

```php
use OpenAI\Laravel\Facades\OpenAI;

$response = OpenAI::chat()->create([
    'model' => 'gpt-4o',
    'messages' => [
        ['role' => 'system', 'content' => 'You are Rishabh Ki Kaksha AI Tutor.'],
        ['role' => 'user', 'content' => $userPrompt],
    ],
    'temperature' => 0.2,
]);

$answer = $response->choices[0]->message->content;
```

---

### 2. Semantic Search with `pgvector` in Eloquent

```php
$queryEmbedding = EmbeddingService::generate($searchTerm);

$relevantLessons = Lesson::query()
    ->selectRaw("id, title, 1 - (embedding <=> ?) as similarity", [json_encode($queryEmbedding)])
    ->whereRaw("1 - (embedding <=> ?) > 0.82", [json_encode($queryEmbedding)])
    ->orderByRaw("embedding <=> ?", [json_encode($queryEmbedding)])
    ->limit(3)
    ->get();
```

---

### 3. Interview Ke 3 Sawal Is Topic Se

1. **Server-Sent Events (SSE) streaming response Laravel Controller se kaise return hota hai?** -> `response()->stream(function() { ... }, 200, ['Content-Type' => 'text/event-stream'])`.
2. **LLM API Failures / Rate-Limits resilience kaise handle karte hain?** -> Exponential backoff retry policies aur fallback model routing (Switching to local/backup model).
3. **Structured Outputs (JSON Schema mode) OpenAI SDK me kaise enforce hota hai?** -> `response_format => ['type' => 'json_object']` or passing strict Zod/JSON schema.

---
**Next Topic:** 20. Production Deployment: Laravel Octane (FrankenPHP/Swoole), PM2/Supervisor & Docker Deployments

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CERTIFICATE OF COMPLETION

Rishabh Gehlot

PHP 8+ & Laravel 11 Master Track