FrankenPHP Xdebug

This is a project to debug how to get xdebug running correctly with FrankenPHP

With Xdebug enabled AND liip imagine bundle installed and a filter applied when loading the initial page it gets stuck for a very long time and uses 100% cpu on a core per imagine filter being applied.

Here that means it is stuck on 3 cores at 100%.

To start the project run

docker compose up

It will be available at http://localhost:8888/.

To start gdb for debugging :

docker compose exec php sh
dpg -p 1
set logging enabled on

Then press c until the page is rendered (or atleast partially). This will create a gdb.txt file at the root of the project.

Xdebug versions

To change the Xdebug version modify ENV XDEBUG_VERSION=3.2.1 in the Dockerfile.

PHP versions

Using the alpine FrankenPHP image it can be changed from PHP8.3.3 to PHP 8.2.16 By changing

FROM dunglas/frankenphp:1.1.0-alpine AS frankenphp_upstream

into

FROM dunglas/frankenphp:1.1-php8.2.16-alpine AS frankenphp_upstream

The problem seems to only be for php 8.3.3