How do I add content negotiation to my PHP Laravel app?

In your controller: if ($request->expectsJson()) { return response()->json($data); } else { return view('template', compact('data')); }. Fetch data once upfront.

Does Symfony support content negotiation out of the box?

Yes — use #[Route(..., requirements: ['_format' => 'html|json'])] and $request->getPreferredFormat(). Handles Accept headers natively.

Is content negotiation secure for public APIs?

Secure as your auth setup. Use middleware for tokens; browsers won't trigger JSON by default.

🛠️ Developer Tools

Your PHP Site Is a Hidden API: Unlock It with HTTP Content Negotiation

Stop building parallel APIs. Your existing PHP website already serves product data—flip a switch with content negotiation to feed mobile apps JSON without new code. Here's how it slashes dev time.

theAIcatchup Apr 08, 2026 4 min read

PHP code example using content negotiation to serve JSON or HTML from one endpoint

⚡ Key Takeaways

Transform existing PHP endpoints into APIs using HTTP Accept headers—no new codebases needed. 𝕏
Symfony and Laravel handle content negotiation natively, reducing maintenance by reusing business logic. 𝕏
This spec-compliant trick cuts dev time and tech debt, reviving true REST principles. 𝕏

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#Laravel #PHP API #Symfony #content negotiation #http-accept-header #laravel-json #php-content-negotiation #symfony-api

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Originally reported by Dev.to

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