2023 · Creator & Maintainer

Freemius SDK PHP Stubs

PHPStan-compatible stub declarations for the Freemius SDK — enables full static analysis for WordPress plugins that monetise via Freemius.

The challenge

Plugins monetised via Freemius can't run PHPStan above level 0 because Freemius SDK classes aren't visible to static analysis. Type-safety stops at the paywall code.

The result

A complete stub package for the Freemius SDK enabling PHPStan level 8 across the whole plugin — including the licensing, paywall, and analytics surface.

Year: 2023
Role: Creator & Maintainer
Stack: 4 teches
Status: Published

Overview

Freemius is the most widely-used SDK for selling and licensing WordPress plugins. This package provides PHPStan stub declarations for all public Freemius classes, methods, and functions — enabling type-safe development against the SDK without requiring the full Freemius codebase as a dev dependency.

Usage

composer require --dev mralaminahamed/freemius-stubs

Add to phpstan.neon:

parameters:
    stubFiles:
        - vendor/mralaminahamed/freemius-stubs/stubs

What's Included

Freemius, FS_Plugin, FS_User, FS_Site and all related class stubs
License management and pricing plan API stubs
Hooks and filter signatures

Adoption

Over 1,500 Composer installs across WordPress plugin development teams.

Tech

PHP, PHPStan stubs, Freemius SDK.

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