function codeAuditLog($event, $details = []) { $log = loadJsonFile(AUDIT_LOG_FILE); if (!isset($log['events'])) $log['events'] = []; $log['events'][] = [ 'event' => $event, 'email' => $_SESSION['email'] ?? null, 'ip' => $_SERVER['REMOTE_ADDR'] ?? null, 'details' => $details, 'created_at' => date('c'), ]; $log['events'] = array_slice($log['events'], -5000); saveJsonFile(AUDIT_LOG_FILE, $log); } function codeRateLimit($bucket, $limit = 30, $windowSeconds = 3600) { $key = $bucket . ':' . ($_SESSION['email'] ?? ($_SERVER['REMOTE_ADDR'] ?? 'unknown')); $now = time(); $store = loadJsonFile(RATE_LIMITS_FILE); if (!isset($store['buckets'])) $store['buckets'] = []; $hits = array_values(array_filter($store['buckets'][$key] ?? [], function($ts) use ($now, $windowSeconds) { return ($now - (int)$ts) < $windowSeconds; })); if (count($hits) >= $limit) { $store['buckets'][$key] = $hits; saveJsonFile(RATE_LIMITS_FILE, $store); return false; } $hits[] = $now; $store['buckets'][$key] = $hits; saveJsonFile(RATE_LIMITS_FILE, $store); return true; } TylerCode - Learn, Practice, Build
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Learn code by building real things.

TylerCode is a full learning hub for web development, programming, AI, data, cloud, security, accessibility, and career skills. Study lessons, use references, practice exercises, follow roadmaps, and open the editor when you are ready to build.

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16Tracks
64Lessons
3Certificates

What makes this different

Built into your TYLERROSSUSA auth, connected to progress tracking, and designed for future AI tutoring, labs, certificates, and creator/community features.

Follow a roadmapPractice exercisesUse referencesTry the editor

Featured Lessons

Start with practical lessons that can grow into portfolio projects.

All Tutorials

Learning Tracks

Comparable breadth to major coding schools, organized around what builders actually need.

📄

HTML

Structure pages with semantic markup, forms, tables, media, SEO, and accessibility.

🎨

CSS

Style professional interfaces with layouts, responsive design, animation, and design systems.

⚡

JavaScript

Build interactive websites with the DOM, events, async code, APIs, and modern patterns.

🐍

Python

Learn Python fundamentals, scripts, automation, APIs, data work, and backend foundations.

💻

PHP

Build server-rendered apps, forms, sessions, auth, JSON APIs, and secure backend workflows.

📊

SQL

Query, model, and optimize relational databases with practical app-focused examples.

⚛

React

Create component-based frontends with state, props, hooks, routing, and app structure.

🟢

Node.js

Build JavaScript backends, REST APIs, auth middleware, jobs, and integrations.

🛠

Git & GitHub

Use version control, branching, pull requests, releases, and team workflows.

🛡

Web Security

Protect apps with secure auth, validation, headers, sessions, permissions, and threat modeling.

♿

Accessibility

Build inclusive products with semantic HTML, keyboard flows, ARIA, contrast, and testing.

📈

Data & Analytics

Turn data into useful decisions with CSVs, charts, dashboards, and Python analysis.

🧠

AI Development

Use AI APIs, prompt design, embeddings, retrieval, evaluation, and AI product patterns.

☁

Cloud & DevOps

Deploy reliable apps with Linux, Nginx, Docker concepts, CI, backups, and monitoring.

📱

Mobile Web

Create installable, fast mobile-first experiences with PWA, offline UX, and touch design.

💼

Developer Career

Build portfolios, technical resumes, interview habits, freelancing systems, and project proof.

Build Beyond Tutorials

Reference tables, labs, certificates, and roadmaps are now first-class parts of Code.

References

Fast lookup pages for syntax, patterns, gotchas, and production notes.

Exercises

Challenge labs with starter code and quality checks.

Roadmaps

Step-by-step tracks for frontend, backend, full stack, AI, and credit-tech products.

Certificates

Certificate structure is ready for future paid/free credential programs.