Contributing Advent 17: Printing stacks
Anybody who is vaguely familiar with Xdebug probably has seen its glorious orange stack traces gracing their screens. In case you have not, they look like:
In this case, the tell_a_lie_and_hurt_you() function tried to call strlen() with incorrect arguments.
Xdebug overloads PHP's internal error handler to do this, but it is also possible to trigger stack traces yourself. You can of course use trigger_error(), but Xdebug also provides the xdebug_print_function_stack() function. Running xdebug_print_function_stack() instead of the erroneous strlen() results in:
As the documentation state, you can also provide your own message:
<?php
function tell_a_lie_and_hurt_you()
{
xdebug_print_function_stack("You have been rickrolled!");
}
Which then results in:
This was all good, and then my friend Rob asked:
hypothetically, how hard would it be to change xdebug_print_function_stack() so that it didn't output the filename and line number in the orange box?
Well, it didn't turn out to be very hard. Rob requested this feature because he was writing his own error handler. And with your own error handler it does not make a whole lot of sense to show where xdebug_print_function_stack() was called from. After my commit, you can now supply a second argument to xdebug_print_function_stack():
<?php
function tell_a_lie_and_hurt_you()
{
xdebug_print_function_stack("You have been rickrolled!", XDEBUG_STACK_NO_DESC);
}
Which then results in a stack trace without header:
This new feature will be part of Xdebug 2.3.
Life Line
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
I walked 2.1km in 20m08s
Enjoying my afternoon and evening out at Lords for some cricket!
I walked 3.2km in 38m54s
I walked 9.1km in 1h34m28s
Updated a gate
Updated a bakery shop
Updated a convenience shop
I walked 8.1km in 1h32m18s
I walked 5.6km in 59m13s
Updated a restaurant and a cafe; Confirmed 2 restaurants and a cafe
I walked 6.7km in 1h8m27s
I walked 4.7km in 50m02s
I got myself a sheet of Sun-safe filter material, and McGuyvered a pop-up filter for my lens.
The first attempt sort of worked, but I didn't get the filter 100% straight. Luckily I have more material.
But this is sort of my first attempt, and a few sunspots are clearly visible on the right of the image.
Warning: Never look at the Sun without protection!
#Sun #Photography #Astronomy #AstroPhotography
Shortlink
This article has a short URL available: https://drck.me/adv1317-afc