(PHP 5 >= 5.5.0, PHP 7, PECL >= 3.0.0a1)
IntlCalendar::clear — Clear a field or all fields
Stil obiect-orientat
$field
= NULL
) : boolStil procedural
Clears either all of the fields or a specific field. A cleared field is
marked as unset, giving it the lowest priority against overlapping fields or
even default values when calculating the time. Additionally, its value is set
to 0
, though given the fieldʼs low priority, its value may
have been internally set to another value by the time the field has finished
been queried.
cal
The IntlCalendar resource.
field
Una din constantele de câmp
dată/oră ale IntlCalendar. Acestea sunt valori întregi
de la 0
până la IntlCalendar::FIELD_COUNT
.
Returns true
on success sau false
în cazul eșecului. Failure can only occur is
invalid arguments are provided.
Example #1 IntlCalendar::clear() examples
<?php
ini_set('intl.default_locale', 'es_ES');
ini_set('date.timezone', 'UTC');
$fields = array(
'FIELD_ERA' => 0,
'FIELD_YEAR' => 1,
'FIELD_MONTH' => 2,
'FIELD_WEEK_OF_YEAR' => 3,
'FIELD_WEEK_OF_MONTH' => 4,
'FIELD_DATE' => 5,
'FIELD_DAY_OF_YEAR' => 6,
'FIELD_DAY_OF_WEEK' => 7,
'FIELD_DAY_OF_WEEK_IN_MONTH' => 8,
'FIELD_AM_PM' => 9,
'FIELD_HOUR' => 10,
'FIELD_HOUR_OF_DAY' => 11,
'FIELD_MINUTE' => 12,
'FIELD_SECOND' => 13,
'FIELD_MILLISECOND' => 14,
'FIELD_ZONE_OFFSET' => 15,
'FIELD_DST_OFFSET' => 16,
'FIELD_YEAR_WOY' => 17,
'FIELD_DOW_LOCAL' => 18,
'FIELD_EXTENDED_YEAR' => 19,
'FIELD_JULIAN_DAY' => 20,
'FIELD_MILLISECONDS_IN_DAY' => 21,
'FIELD_IS_LEAP_MONTH' => 22,
'FIELD_FIELD_COUNT' => 23,
);
function getSetFields(IntlCalendar $cal) {
global $fields;
$ret = array();
foreach ($fields as $name => $value) {
if ($cal->isSet($value)) {
$ret[] = $name;
}
}
return $ret;
}
$cal = new IntlGregorianCalendar(2013, 2 /* March */, 15);
echo "After GregorianCalendar creation\n";
print_r(getSetFields($cal));
echo "\n";
echo IntlDateFormatter::formatObject($cal), "\n";
echo "After the formatter requested the extended year\n";
print_r(getSetFields($cal));
echo "\n";
$cal->clear(IntlCalendar::FIELD_YEAR);
echo "After the year has been cleared, the date stays the same\n";
echo IntlDateFormatter::formatObject($cal), "\n";
echo "because FIELD_EXTENDED_YEAR is still set\n";
print_r(getSetFields($cal));
echo "\n";
var_dump($cal->clear(IntlCalendar::FIELD_EXTENDED_YEAR));
echo "After the extended year has been cleared\n";
print_r(getSetFields($cal));
echo IntlDateFormatter::formatObject($cal), "\n";
echo "\n";
echo "After the fields are recalculated,\n"
. " extended year is set again (to 1970)\n";
print_r(getSetFields($cal));
echo "\n";
$cal->clear();
echo "After calling variant with no arguments\n";
print_r(getSetFields($cal));
echo IntlDateFormatter::formatObject($cal), "\n";
Exemplul de mai sus va afișa:
After GregorianCalendar creation Array ( [0] => FIELD_ERA [1] => FIELD_YEAR [2] => FIELD_MONTH [3] => FIELD_DATE ) 15/03/2013 00:00:00 After the formatter requested the extended year Array ( [0] => FIELD_ERA [1] => FIELD_YEAR [2] => FIELD_MONTH [3] => FIELD_DATE [4] => FIELD_EXTENDED_YEAR ) After the year has been cleared, the date stays the same 15/03/2013 00:00:00 because FIELD_EXTENDED_YEAR is still set Array ( [0] => FIELD_ERA [1] => FIELD_MONTH [2] => FIELD_DATE [3] => FIELD_EXTENDED_YEAR ) bool(true) After the extended year has been cleared Array ( [0] => FIELD_ERA [1] => FIELD_MONTH [2] => FIELD_DATE ) 15/03/1970 00:00:00 After the fields are recalculated, extended year is set again (to 1970) Array ( [0] => FIELD_ERA [1] => FIELD_MONTH [2] => FIELD_DATE [3] => FIELD_EXTENDED_YEAR ) After calling variant with no arguments Array ( ) 01/01/1970 00:00:00