I'm the author. phpClaw is an MIT agent runtime for PHP: a ReAct tool loop, memory, input guards, and an MCP server, with no framework dependencies in core (PHP 8.1+). There are adapters for Laravel, Symfony, Drupal, and others. Happy to answer questions.
I will say I'm a bit sceptical to the general quality and probably sloppiness of this based on the 300k loc initial commit wich sets off some warning signs for me.
I've since switched to Go for most of my development, but I have a decades old fondness for PHP and seeing what people can get it to do. PHP is dead! Long live PHP!