When working with dates and times, we use awesome Carbon class, right? And there's a lot of small things in it which we might not even know. I will give you one example today.
True story: I had to write the IF-statement in the code which would say "if day of week is Saturday". Of course, it's easy:
if ($dt->dayOfWeek == ...
And then my brain went "But wait. What number is Saturday? Should be 6? Or 5, since the whole array is from 0 to 6? Oh come on..."
Then I went to Carbon docs and found out that you don't have to remember such things - there are constants for that!
if ($dt->dayOfWeek == Carbon::SATURDAY) // ... do some Saturday magic
Yes, there are constants for all days of week:
var_dump(Carbon::SUNDAY); // int(0)
var_dump(Carbon::MONDAY); // int(1)
var_dump(Carbon::TUESDAY); // int(2)
var_dump(Carbon::WEDNESDAY); // int(3)
var_dump(Carbon::THURSDAY); // int(4)
var_dump(Carbon::FRIDAY); // int(5)
var_dump(Carbon::SATURDAY); // int(6)
But it doesn't stop there. For those who are totally lost in time and don't know how much years are in a century or hours in a day - there you go!
var_dump(Carbon::YEARS_PER_CENTURY); // int(100)
var_dump(Carbon::YEARS_PER_DECADE); // int(10)
var_dump(Carbon::MONTHS_PER_YEAR); // int(12)
var_dump(Carbon::WEEKS_PER_YEAR); // int(52)
var_dump(Carbon::DAYS_PER_WEEK); // int(7)
var_dump(Carbon::HOURS_PER_DAY); // int(24)
var_dump(Carbon::MINUTES_PER_HOUR); // int(60)
var_dump(Carbon::SECONDS_PER_MINUTE); // int(60)
Note to self: sometimes it's quite useful to just read the manual of packages.
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