Common Magento 2 Errors and How to Fix Them
Fixes for classic Magento 2 errors: Area code is not set, Class does not exist, Invalid Form Key, stuck indexers, Unable to unserialize value, static 404s.
← Back to blog
Articles about PHP
4 articles
Magento 2 GraphQL: Add a Custom Query and Resolver
How to add a custom GraphQL query in Magento 2.4: schema.graphqls, a resolver with ResolverInterface, errors, auth checks and cache identity for Varnish.
PHPStan for Magento 2: Static Analysis Setup Guide
Run PHPStan on Magento 2 custom code: the phpstan-magento extension for generated classes, choosing a level, baselines for legacy code and CI integration.
Magento 2 Unit Tests with PHPUnit: A Practical Guide
Write useful Magento 2 unit tests with PHPUnit: folder layout, mocking interfaces, data providers, running only your tests and designing code that is testable.