Carbon: 🐛 Parsing date string (2.41.0) not correct

[mrcnpdlk]

Hello,

I encountered an issue with the following code:

echo Carbon::parse('20201006')->toDateTimeString();

Carbon version: 2.41.0

PHP version: 7.3.22 & 7.2.33

I expected to get:

2020-10-06 00:00:00

But I actually get:

1970-08-22 19:23:26

On 2.40.1 parsing date without special chars was correct.

Thanks!

[tomvo]

We are experiencing the exact same thing as @mrcnpdlk since the upgrade to 2.41.0 yesterday, breaking code.

Reverting to 2.40.1 solves the issue for now.

[kylekatarnls]

Hello,

Pure digits string is interpreted as a timestamp. You also can work around with:

Carbon::createFromFormat('Ymd', '20201006')

I will check if we can keep this feature somehow.

Thanks

[kylekatarnls]

As the parse previously supported this format up to year 9999. and as 99991231 is now a very old timestamp. It would be fine to keep the Ymd parsing below this limit.

[kylekatarnls]

This format is supported again in 2.41.1 in parse() and the constructor.

I still recommend to use more explicit formats (- separator for dates, : for times) and use createFromFormat() when handling non-ISO formats.

For those who handle timestamps, the dedicated createFromTimestamp() or createFromTimestampUTC() are the explicit way to create an instance from timestamp (without the new minimum of 99991231).