(PHP 5 >= 5.5.0, PHP 7, PHP 8, PECL >= 3.0.0a1)
IntlCalendar::before — Whether this object?s time is before that of the passed object
面向对象风格
过程化风格
Returns whether this object?s time precedes the argument?s time.
calendar
An IntlCalendar instance.
other
The calendar whose time will be checked against the primary object?s time.
Returns true
if this object?s current time is before that of the
calendar
argument?s time. Returns false
otherwise.
On failure false
is also returned. To detect error conditions use intl_get_error_code(), or set up Intl to throw exceptions.