PHP Mutation Testing library
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Minimum PHP version: 8.1.0 Latest Stable Version Continuous Integration Build Status Scrutinizer Code Quality Infection MSI codecov Slack channel: #infection on the Symfony slack StandWithUkraine

Infection - Mutation Testing framework

Please read documentation here:


Infection is an open source project that welcomes pull requests and issues from anyone. Before opening pull requests, please consider reading our short Contribution Guide.


This project is highly inspired from Pádraic Brady (@padraic)'s Humbug library. Humbug has since then been discontinued in favour of this project.

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