The Y2K7 problem
Right, that "Y2K7" is not a typo. It "refers to the Year 2007 problem, caused by a US-mandated change to Daylight Saving Time" ( wikipedia ). From this year the US (and Canada) changed the dates on when daylight saving time is active. DST now starts three weeks earlier, and ends one week later. This causes quite a lot of problems with software that hard coded those rules. On Linux (and other Unix-like operating systems) this can be remedied by updating the zoneinfo information - check your Operating System's documentation on how to do that.
PHP before PHP 5.1.0 relies on the Operating System to provide time zone information, while PHP versions 5.1.0 and higher come with a bundled time zone database. The database that ships with PHP 5.1.0 already covers the changes in the US and Canada, however, the US and Canada are not the only places changing rules. Many places on earth change those rules all the time which means PHP's database needs to be updated as well.
Every PHP version comes with the latest release of the time zone database at the moment PHP is released. However, it is also possible to just update this data by installing the PECL extension timezonedb . This extension is released whenever a new version of the Olson database becomes available. The current version is 2007c (2007.3).
Comments
Hey Derick, That does seem to be a problem, but I wonder how many sites/systems will be affected.
Its a lesson us brazilians have already been through, because over here we have no specific date for begining or end of the daylight savings time. And this year we had a real mess because only half (or less) of the states actually "accepted" the change, so we had an internal timezone going. Real mess as you can see.
Well great post, interesting stuff, will you be here for this year's PHP Conf?
Greetz!
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
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
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