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You can test if a string will produce a relative or absolute date with $now = Carbon::now(); echo $now; // 2019-08-25 echo "\n"; $today = Carbon::today(); echo $today; // 2019-08-25 echo "\n"; $tomorrow = Carbon::tomorrow('Europe/London'); echo $tomorrow; // 2019-08-26 echo "\n"; $yesterday = Carbon::yesterday(); echo $yesterday; // 2019-08-24 functions allow you to provide as many or as few arguments as you want and will provide default values for all others.Generally default values are the current date, time or timezone.var_dump($modified Immutable === $immutable); // bool(false) var_dump($immutable-iso Format('dddd D')); // string(9) "Monday 26" // While $immutable is still set to now and cannot be changed and // $modified Immutable is a new instance created from $immutable // set to now 1 day.$mutable = Carbon Immutable::now()- The library also provides Carbon Interface interface extends Date Time Interface and Json Serializable, Carbon Interval class extends Date Interval, Carbon Time Zone class extends Date Time Zone and Carbon Period class polyfills Date Period.So while I can’t answer what’s wrong in your specific code, I can tell you why it is happening.In PHP, the date function takes in a Unix timestamp, then formats it according to the format mask you provide.The second, Ever need to loop through some dates to find the earliest or latest date?Didn't know what to set your initial maximum/minimum values to?
With a 64-bit OS system and 64-bit version of PHP, the minimum is 01-01-01 and maximum is 9999-12-31 .
In PHP, a good sign that something is wrong with your date data or logic is when you start seeing dates displayed as “12/31/1969” (or however you specified the format).
Unfortunately, there’s not a one-fits-all solution to that, since it could be caused by any number of things, but ultimately, the root of the matter is that you’re passing an invalid timestamp into .
You can see from the code snippet above that the Carbon class is declared in the Carbon namespace.
You need to import the namespace to use Carbon without having to provide its fully qualified name each time.