(PHP 5 >= 5.5.0, PHP 7, PECL >= 3.0.0a1)
IntlCalendar::isSet — Whether a field is set
Object oriented style
public IntlCalendar::isSet ( int $field ) : bool
Procedural style
intlcal_is_set ( IntlCalendar $cal , int $field ) : bool
Returns whether a field is set (as opposed to clear). Set fields take priority over unset fields and their default values when the date/time is being calculated. Fields set later take priority over fields set earlier.
cal
The IntlCalendar resource.
field
One of the IntlCalendar date/time field constants. These are integer values between 0
and IntlCalendar::FIELD_COUNT
.
Assuming there are no argument errors, returns true
if the field is set.
See the example on IntlCalendar::clear().
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https://www.php.net/manual/en/intlcalendar.isset.php