IntlDateTimePatternGenerator

This PHP extension introduces IntlDateTimePatternGenerator class — the missing part from PHP's intl extension.

All kudos for the native PHP7 version send to xBazilio.

Motivation

The motivation is described in https://blog.ksimka.io/a-long-journey-to-formatting-a-date-without-a-year-internationally-with-php/#header .

Long story short: currently (with standard intl) there is no way to format a date internationally without a year field (like "February 10" or "10 февраля"). IntlDateTimePatternGenerator fixes this issue, see examples.

Installation

• Install ICU libraries
  • i.e. sudo apt-get install libicu-dev for Debian-like systems
• Build and install extension
  • phpize && ./configure && make && sudo make install

  Note: if you have PHP installed from sources you should use full paths: [/path/to/php/]phpize && ./configure --with-php-config=[/path/to/php/]php-config && make && sudo make install

• Make sure you have extension=intl_dtpg.so in your php.ini

Note: if you didn't install the extension via make install you have to use a full path: extension=[/path/to/ext_src_dir/modules/]intl_dtpg.so

• Try it using example php example.php

Examples

See example.php.

<?php

foreach (['ru_RU', 'en_US', 'fr_FR', 'zh_CN', 'fa_IR'] as $locale) {
    echo $locale, PHP_EOL;

    $dtpg = new IntlDateTimePatternGenerator($locale);

    foreach (['MMMMd', 'MMMdHHmm', 'YYMMM', 'eeeeMMMMdH'] as $skeleton) {
        $pattern = $dtpg->findBestPattern($skeleton);
        $formatted = (new IntlDateFormatter($locale, 0, 0, null, null, $pattern))->format(1455111783);
        printf("  %s%s%s\n", str_pad($skeleton, 12), str_pad($pattern, 20), str_pad($formatted, 32));
    }
}

/*
ru_RU
  MMMMd       d MMMM              10 февраля
  MMMdHHmm    d MMM, H:mm         10 февр., 17:43
  YYMMM       LLL YY              Февр. 16
  eeeeMMMMdH  cccc, d MMMM, H     Среда, 10 февраля, 17
en_US
  MMMMd       MMMM d              February 10
  MMMdHHmm    MMM d, HH:mm        Feb 10, 17:43
  YYMMM       MMM YY              Feb 16
  eeeeMMMMdH  EEEE, MMMM d, HH    Wednesday, February 10, 17
fr_FR
  MMMMd       d MMMM              10 février
  MMMdHHmm    d MMM HH:mm         10 févr. 17:43
  YYMMM       MMM YY              févr. 16
  eeeeMMMMdH  EEEE d MMMM HH 'h'  mercredi 10 février 17 h
zh_CN
  MMMMd       M月d日            2月10日
  MMMdHHmm    M月d日 HH:mm      2月10日 17:43
  YYMMM       YY年M月           16年2月
  eeeeMMMMdH  M月d日EEEE H时   2月10日星期三 17时
fa_IR
  MMMMd       d LLLL              ۱۰ فوریه
  MMMdHHmm    d LLL،‏ H:mm     ۱۰ فوریه،‏ ۱۷:۴۳
  YYMMM       MMM YY G            فوریهٔ ۱۶ م.
  eeeeMMMMdH  EEEE d LLLL،‏ H  چهارشنبه ۱۰ فوریه،‏ ۱۷
*/