4wp.dev

Principles for WordPress Development

Single Responsibility Principle in WordPress

A class should have one, and only one, reason to change

The Single Responsibility Principle is the cornerstone of maintainable WordPress development. When a component has multiple responsibilities, changes to one responsibility can impact or break the others, creating tight coupling and fragile code.

Clean Code | Modular Plugins | Scalable Themes

Full version: https://4wp.dev/architectures/solid/single-responsibility/

“When you have one plugin — it’s great. When you have several — even better. When they are actively used — perfect. But then the real pain begins…”
— Full-stack WordPress developer with open two eyes

I have 12+ plugins and over 30+ projects where use it and know how management it from one place:

Site: https://4wp.dev/plugin/
GitHub: https://github.com/4wpdev/4wpdev

GitHub - 4wpdev/4wpdev Contribute to 4wpdev/4wpdev development by creating an account on GitHub.

add_filter(‘practice_case_b2b_migration’): Why Using __return_false Changes the Core Email Flow in WordPress
Filters in WordPress are not just about modifying data.In complex projects, they become tools for controlling core behavior. Sometimes — they prevent infrastructure-level problems. This article walks through…

add_filter('practice_case_b2b_migration'): Why Using __return_false Changes the Core Email Flow in WordPress - 4wp.dev - FSE WordPress development Filters in WordPress are not just about modifying data.In complex projects, they become tools for controlling core behavior. Sometimes — they prevent infrastructure-level problems. This article walks through a real B2B marketplace migration case and explains why returning false in specific filters...

4WP Responsive
Responsive controls for core Gutenberg blocks with per-breakpoint spacing, visibility, font-size, and alignment support. Designed to be theme.json-first and editor-friendly.

4wp Responsive Plugin - 4wp.dev - FSE WordPress development # 4WP Responsive Responsive controls for core Gutenberg blocks with per-breakpoint spacing, visibility, font-size, and alignment support. Designed to be theme.json-first and editor-friendly. # # Documentation – Plugin page: https://4wp.dev/plugin/4wp-responsive/ – GitRepository: https://github.co...

4WP-FAQ is not another FAQ plugin and not a new block.
It’s a smart wrapper over the WordPress core Accordion, adding structure and meaning to existing content.

The plugin does not change design, does not break layouts, and does not modify the base block structure. It works entirely on top of native Accordion blocks, adding aggregation logic and Schema.org support.

What 4WP-FAQ does

Automatically converts Accordion-based questions and answers into valid FAQPage Schema (JSON-LD)

Aggregates all FAQ blocks across the site and understands where and in what context each question is used

Works only with real content — no duplication, no invented questions

Core value

4WP-FAQ creates a single source of truth for real questions and answers:

Clear visibility into which questions are actually used

Transparent mapping of questions to pages and contexts

Easy validation of content reuse and relevance

Philosophy

Content is the source of truth.
The plugin doesn’t generate knowledge — it records facts, aggregates them, and exposes data for analysis, reuse, and integrations.

Built for scale

Reuse common questions via autocomplete

Real usage and interaction statistics

Click and expansion tracking with entry-point context

A knowledge base built on actual user questions, not copies or assumptions

🔗 Plugin page & documentation:
https://4wp.dev/plugin/4wp-faq/

💻 GitHub repository:
https://github.com/4wpdev/4wp-faq