From Zero to Static Analysis Hero

on YouTube ↗32m

" summary

Claim: static analysis can catch the same runtime errors earlier by parsing code into an AST, traversing nodes, building a symbol repository and using PHPStan’s type system. Demonstration uses PHPStan level 5, implements a custom rule preventing unnecessary value() calls via node inspection, scope type checks and RuleErrorBuilder, runs across the repo and surfaces a real warning, and notes that Laran already supplies a more robust variant for Laravel projects.

AI-written summary · about

" chapters (8)

1. 0:00Introduction
2. 1:02What is static analysis
3. 5:56Static analysis levels
4. 9:55PHPStan for conformance
5. 10:59How PHPStan works
6. 14:51Custom PHPStan rule
7. 28:41Extending PHPStan with Laravel
8. 29:43Q&A

" related talks

• 25mTypes & static analysis are good in PHPSam Greenwood · Laracon AU 2019
• 53mStatic Analysis Saved My Code TonightDamien Damien Seguy · PHP UK Conference 2017
• 38mWhy you should be using PHPStan in all your projectsAlvaro J Hurtado Villegas · DrupalCamp Spain 2023
• 50mPractical Advanced Static AnalysisDave Liddament · PHP UK Conference 2022
• 57mExtending the PHP Language with Static Analysis- Dave LiddamentDave Liddament · PHP UK Conference 2023
• 45mTesting Strategy with the Help of a Static AnalyzerOndrej Mirtes · Dutch PHP Conference 2018
• 55mSquash Bugs with Static AnalysisDave Liddament · International PHP Conference Munich 2018
• 55mReview unknown code with static analysisDamien Damien Seguy · Dutch PHP Conference 2017