I spent most of my time this month fixing bugs, resulting in the release of Xdebug 3.4.3 on May 14th.

This bug fix fixes a few crashes, and also improves debugging with PHP 8.4's property hooks, by recognising that they have code attached, and no longer throwing fatal errors or exceptions in some situations.

However, it seems that I also might have introduced a new bug — or perhaps with different code, this bug now surfaced. Unfortunately, there is no reproducible case for this specific bug yet, which makes it nearly impossible for me to find and fix it.

In addition to this, due to a memory leak fix, it became apparent that Xdebug does not handle code coverage correctly, when Fibers are used.

Code coverage maintains a stack to remember which lines, branches, and paths have been executed. Once a function finishes, the stack element for it, including path information, gets freed. However, if after freeing code switches to a different Fiber, with a larger stack, the original stack frame's memory is still referenced, causing a crash.

The fix for this will need to include switch stacks, not just for normal PHP scripts as I already do, but also for the one that stores code coverage information. This is unfortunately not a simple task, and hence, it will take a while before I can make another bug fix release addressing this issue.

I hope to have that done by the end of the month.

I have also continued to work on Native Path Mapping, and can now successfully debug templates right from within VS Code.

I have created a teaser video to show it working in a limited fashion.

It does not work yet with PhpStorm due to limitations in the IDE. I have filed a bug report which hopefully will get addressed soon.

More work is necessary, such as understand that some lines will not have code on them at all, and adding many more tests. I will also have to figure out ways to automatically create the source map as I did for the demo in the video.

I have created one new video in the last month:

• Xdebug 3.5: Native Path Mapping Teaser

All Xdebug videos can be watched on my channel.

If you have any suggestions, feel free to reach out to me on Mastodon or via email.

On GitHub sponsors, I am currently 40% towards my $2,500 per month goal, which is set to allow continued maintenance of Xdebug.

If you are leading a team or company, then it is also possible to support Xdebug through a subscription.

In the last month, no new business supporters signed up.

Besides business support, I also maintain a Patreon page, a profile on GitHub sponsors, as well as an OpenCollective organisation.

If you want to contribute to specific projects, you can find those on the Projects page.

Xdebug Cloud is the Proxy As A Service platform to allow for debugging in more scenarios, where it is hard, or impossible, to have Xdebug make a connection to the IDE. It is continuing to operate as Beta release.

Packages start at £49/month, and I have recently introduced a package for larger companies. This has a larger initial set of tokens, and discounted extra tokens.

If you want to be kept up to date with Xdebug Cloud, please sign up to the mailing list, which I will use to send out an update not more than once a month.