<?php

ini_set("intl.error_level", E_WARNING);
ini_set("intl.default_locale", "nl");
$intlcal = IntlCalendar::createInstance('UTC');
$intlcal->setTime(strtotime('2012-02-29 05:06:07 +0000') * 1000);
var_dump($intlcal->getLeastMaximum(IntlCalendar::FIELD_DAY_OF_MONTH), intlcal_get_least_maximum($intlcal, IntlCalendar::FIELD_DAY_OF_MONTH), $intlcal->getActualMaximum(IntlCalendar::FIELD_DAY_OF_MONTH), intlcal_get_actual_maximum($intlcal, IntlCalendar::FIELD_DAY_OF_MONTH), $intlcal->getMaximum(IntlCalendar::FIELD_DAY_OF_MONTH), intlcal_get_maximum($intlcal, IntlCalendar::FIELD_DAY_OF_MONTH));
?>
==DONE==
<?php

ini_set("intl.error_level", E_WARNING);
$c = new IntlGregorianCalendar(NULL, 'pt_PT');
var_dump($c->getLeastMaximum());
var_dump($c->getMaximum());
var_dump($c->getGreatestMinimum());
var_dump($c->getMinimum());
var_dump($c->getLeastMaximum(-1));
var_dump($c->getMaximum(-1));
var_dump($c->getGreatestMinimum(-1));
var_dump($c->getMinimum(-1));
var_dump(intlcal_get_least_maximum($c, -1));
var_dump(intlcal_get_maximum($c, -1));
var_dump(intlcal_get_greatest_minimum($c, -1));
var_dump(intlcal_get_minimum($c, -1));
function eh($errno, $errstr)
{
    echo "error: {$errno}, {$errstr}\n";
}
set_error_handler('eh');
var_dump(intlcal_get_least_maximum(1, 1));
var_dump(intlcal_get_maximum(1, 1));
var_dump(intlcal_get_greatest_minimum(1, -1));
var_dump(intlcal_get_minimum(1, -1));