--- title: "In Search of the Missing PDO Interface" url: https://daily.dev/posts/in-search-of-the-missing-pdo-interface-v3mbsz7lc source_url: https://maximegosselin.com/posts/in-search-of-the-missing-pdo-interface/ type: article source: "Maxime Gosselin" published: 2026-03-22T11:39:32.011Z updated: 2026-03-22T11:39:54.902Z tags: ["architecture", "php", "design-patterns"] reading_time: 10 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # In Search of the Missing PDO Interface **[Maxime Gosselin](https://daily.dev/sources/maximegosselin)** · 10 min read · 0 upvotes · 0 comments ## Summary PHP's PDO extension has lacked a formal interface for nearly 20 years, forcing the ecosystem into fragmented workarounds: inheritance-based lazy loaders, abandoned packages, and incompatible abstractions across libraries like Aura.Sql and Doctrine DBAL. The post proposes a minimal PdoInterface that mirrors PDO's existing public API, demonstrates a clean lazy-loading proxy implementation using composition, and outlines a non-breaking migration path via PHP union types. Two standardization routes are explored: a PHP-FIG PSR (analogous to PSR-3 for loggers or PSR-7 for HTTP messages) and a native language-level interface (similar to DateTimeInterface), which are not mutually exclusive. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Proposing a PSR for PDO Providers](https://daily.dev/posts/proposing-a-psr-for-pdo-providers-i5qczabet) · Maxime Gosselin · 5 upvotes · 0 comments --- Tags: [#architecture](https://daily.dev/tags/architecture), [#php](https://daily.dev/tags/php), [#design-patterns](https://daily.dev/tags/design-patterns) [View this post on daily.dev](https://daily.dev/posts/in-search-of-the-missing-pdo-interface-v3mbsz7lc)