Php intlDateFormatter夏季时间

Symfony 2在自己的DateTimeToLocalizedStringTransformer中使用intlDateFormatter 但它不能正常工作

$tz = new DateTimeZone('Europe/Moscow');
$date = new DateTime('1 march', $tz);


echo "PHP: " . phpversion() . "<br/>\n";
echo "Intl: " . phpversion('intl') . "<br/>\n";
echo "<br/>\n";

echo "TZ: " . $tz->getName() . "<br/>\n";

echo "Native:<br/>\n";
echo $date->format('H:i:s d.m.Y');
echo "<br/>\n";


echo "Intl:<br/>\n";
$formatter = new IntlDateFormatter('RU_ru', IntlDateFormatter::FULL, IntlDateFormatter::FULL, $tz->getName());
echo $formatter->format($date);
echo "\n";

我试着

然后重新安装libicu44，我明白了：

<?php
$tz = new DateTimeZone('UTC');
$date = new DateTime('1 march', $tz);

echo "ICU data version: ", INTL_ICU_DATA_VERSION, "\n";
$formatter = new IntlDateFormatter('RU_ru', IntlDateFormatter::FULL,
        IntlDateFormatter::FULL, "Europe/Moscow");
echo $formatter->format($date), "\n";

---

那么，我如何更新ICU数据？这样地？或者简单地用最新版本重新安装libicu？libicu48用于example@user1747168您可以按照该过程操作，但要注意，如果您的包管理器管理libicu，则数据可能会在更新时被重写。如果您想更新ICU，则必须重新编译PHP intl扩展（例如通过使用pecl重新安装）。
pecl install timezonedb
pecl install intl

<?php
$tz = new DateTimeZone('UTC');
$date = new DateTime('1 march', $tz);

echo "ICU data version: ", INTL_ICU_DATA_VERSION, "\n";
$formatter = new IntlDateFormatter('RU_ru', IntlDateFormatter::FULL,
        IntlDateFormatter::FULL, "Europe/Moscow");
echo $formatter->format($date), "\n";

ICU data version: 4.4.0.1
пятница, 1 марта 2013 г. 3:00:00 Московское стандартное время
ICU data version: 49.1
пятница, 1 марта 2013 г., 4:00:00 Московское стандартное время