How to Make Your PHP SDK Client-Agnostic with PSR‑7, PSR‑17, and PSR‑18

Learn how to decouple a PHP SDK from a specific HTTP client by leveraging PSR‑7, PSR‑17, and PSR‑18 standards together with php‑http/discovery, enabling users to plug in Guzzle, Symfony HttpClient, or any compatible client while keeping the SDK lightweight and flexible.

ComposerHTTP clientPHP

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How to Make Your PHP SDK Client-Agnostic with PSR‑7, PSR‑17, and PSR‑18

Open Source Tech Hub

Sep 28, 2025 · Backend Development

How to Implement Bring Your Own HTTP Client in PHP Using PSR Standards

This article explains the concept of Bring Your Own HTTP Client in PHP, outlines the relevant PSR-7, PSR-17, and PSR-18 standards, shows how php-http/discovery simplifies client selection, and provides concrete SDK code and usage examples for flexible, high‑performance HTTP integration.

HTTP clientPHPPSR-18

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How to Implement Bring Your Own HTTP Client in PHP Using PSR Standards