Contributing Advent 20: Xdebug halting on error
After Rob came up with the idea for xdebug_print_function_stack() from episode 17 he filed another issue. This new issue request thats a new setting to be added to Xdebug that allows users to decide whether notices and warnings should be treated as (fatal) errors. It's very much like GCC's -Werror setting which converts every compiler warning into an error that aborts the compilation process. The article for episode 4 talks a bit more about GCC's flags.
But as we are talking about PHP and Xdebug here, lets focus on this new feature that I added. xdebug.halt_level is a setting that allows you to configure a mask. This mask determines which notices get converted to errors. Right now, you can configure notices and warnings that are generated by PHP, and notices and warnings that you generate yourself (by means of trigger_error()). For example, to convert the warning of strlen() (without arguments) to an error, you would do:
<?php
ini_set('xdebug.halt_level', E_WARNING);
strlen();
?>
Which will then result in the showing of the error message, and the abortion of the script. echo "Hi!\n"; will not be executed.
The new setting is a bit mask, so to convert all notices and warnings into errors for all applications, you can set this in php.ini:
xdebug.halt_level=E_WARNING|E_NOTICE|E_USER_WARNING|E_USER_NOTICE
And that means, that errors created by trigger_error() also cause the termination of the script.
This new feature is going to be part of Xdebug 2.3. Stay tuned!
Comments
Ok this is good and it's probably a bit late to comment, but instead of halting it would be nice to make it stop (not error/exit) like a breakpoint. Or are we talking about the same thing? :)
Thanks for a great product!
Andrew
@Andrew: Xdebug already supports that through an exception breakpoint on Notice. Not many IDEs support that though.
Life Line
TIL that Kingfishers can hover just like hummingbird. I'll hopefully have some reasonable shots after I've gone through my nearly thousand shots today...
I hiked 9.8km in 3h40m47s
Updated a restaurant
Updated a vacant business
I walked 7.1km in 1h16m56s
I walked 3.9km in 45m56s
I walked 1.1km in 10m47s
I think this was my favourite photo of the set that I took. It's not at maximum coverage, but it does have a sun spot group (4508) just on the cusp of the terminator.
#eclipse #eclipse2026 #SolarEclipse #London #Astronomy #AstroPhotography #Photography
No totality here in London, but still had a great evening out in the local park and taking some snaps.
I did have a nice Solar Filter that I made for my lens, and had many conversations with people from different backgrounds. Kids loves to look through my filter after I was done (ran out of battery power).
More photos later...
#london #eclipse2026 #eclipse #photography
I walked 0.9km in 9m28s
I walked 1.2km in 19m05s
Merged pull request #1100
Fixed issue #2267: Application slow when debugger is not listening on…
I walked 4.7km in 48m18s
I walked 3.0km in 1h10m24s
Is there somebody who runs PHP on native windows (with Xdebug) and can run a simple script for me?
It must be in a file (`test.php`):
```
<?php
echo microtime(true), "\n";
xdebug_connect_to_client();
echo microtime(true), "\n";
```And run like:
php -dxdebug.log_level=11 -dxdebug.log=c:\temp\xdebug-i.log -dxdebug.client_host=localhost -dxdebug.client_port=9111 -dxdebug.mode=debug c:\temp\test.php
With the port 9111 not open.
Would love to see the output and log file (in a DM).
I walked 5.5km in 55m06s
@harry_wood This is this list of 100 Go-mistakes that I was talking about: https://100go.co/
Updated a crossing
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Enjoying my afternoon and evening out at Lords for some cricket!
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I walked 9.1km in 1h34m28s
Updated a gate
Updated a bakery shop
Shortlink
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