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<IntlCalendar::isEquivalentToIntlCalendar::isSet>
^IntlCalendarLast updated: Mon, 26 Oct 2026

IntlCalendar::isLenient

(PHP 5 >= 5.5.0, PHP 7, PHP 8, PECL >= 3.0.0a1)

IntlCalendar::isLenient — Whether date/time interpretation is in lenient mode

Description

Object-oriented style

public function IntlCalendar::isLenient(): bool

Procedural style

function intlcal_is_lenient(IntlCalendar $calendar): bool

Returns whether the current date/time interpretations is lenient (the default). If that is case, some out of range values for fields will be accepted instead of raising an error.

Parameters

calendar

An IntlCalendar instance.

Return Values

A bool representing whether the calendar is set to lenient mode.

Examples

Example #1 IntlCalendar::isLenient()

<?php
ini_set('date.timezone', 'Europe/Lisbon');
ini_set('intl.default_locale', 'pt_PT');
ini_set('intl.use_exceptions', '1');

$cal = new IntlGregorianCalendar(2013, 6 /* July */, 1);
var_dump(IntlDateFormatter::formatObject($cal), // 01/07/2013, 00:00:00
$cal->isLenient()); // true

$cal->set(IntlCalendar::FIELD_DAY_OF_MONTH, 33);
var_dump(IntlDateFormatter::formatObject($cal)); // 02/08/2013, 00:00:00

$cal->setLenient(false);
var_dump($cal->isLenient()); // false
$cal->set(IntlCalendar::FIELD_DAY_OF_MONTH, 33);
var_dump(IntlDateFormatter::formatObject($cal)); // error

The above example will output:

string(20) "01/07/2013, 00:00:00"
bool(true)
string(20) "02/08/2013, 00:00:00"
bool(false)

Fatal error: Uncaught exception 'IntlException' with message 'datefmt_format_object: error obtaining instant from IntlCalendar' in /home/foobar/example.php:16
Stack trace:
#0 /home/foobar/example.php(16): IntlDateFormatter::formatObject(Object(IntlGregorianCalendar))
#1 {main}
  thrown in /home/foobar/example.php on line 16


<IntlCalendar::isEquivalentToIntlCalendar::isSet>
^IntlCalendarLast updated: Mon, 26 Oct 2026