ICU dates relatives

number_spellout.php

<?php
function number_spellout($number, $ordinal = FALSE, $feminine = FALSE, $plural = FALSE, $locale = NULL) {
    # see: http://saxonica.com/html/documentation/extensibility/config-extend/localizing/ICU-numbering-dates/ICU-numbering.html
    static $map = array(
        0b000 => '%spellout-cardinal-masculine',
        0b001 => '%spellout-cardinal-masculine', // no plural
        0b010 => '%spellout-cardinal-feminine',
        0b011 => '%spellout-cardinal-feminine', // no plural
        0b100 => '%spellout-ordinal-masculine',
        0b101 => '%spellout-ordinal-masculine-plural',
        0b110 => '%spellout-ordinal-feminine',
        0b111 => '%spellout-ordinal-feminine-plural',
    );

    $numfmt = new NumberFormatter($locale ?: Locale::getDefault(), NumberFormatter::SPELLOUT);
    if ($rule = $map[($ordinal << 2) | ($feminine << 1) | ($plural << 0)]) {
        $numfmt->setTextAttribute(NumberFormatter::DEFAULT_RULESET, $rule);
    }

    return $numfmt->format($number);
}

var_dump(
    number_spellout(1, FALSE, FALSE, FALSE), // un
    number_spellout(1, FALSE, FALSE, TRUE), // un (pas de pluriel)
    number_spellout(1, FALSE, TRUE, FALSE), // une
    number_spellout(1, FALSE, TRUE, TRUE), // une (pas de pluriel)
    number_spellout(1, TRUE, FALSE, FALSE), // premier
    number_spellout(1, TRUE, FALSE, TRUE), // premiers # obtenu: un
    number_spellout(1, TRUE, TRUE, FALSE), // première
    number_spellout(1, TRUE, TRUE, TRUE), // premières # obtenu: un
    NULL
);

relative_date.php

<?php
date_default_timezone_set('Europe/Paris');

if (!defined('IntlDateFormatter::RELATIVE')) {
    define('RELATIVE', 1 << 7);
    define('SHORT_RELATIVE', IntlDateFormatter::SHORT | RELATIVE);
    define('FULL_RELATIVE', IntlDateFormatter::FULL | RELATIVE);
    define('LONG_RELATIVE', IntlDateFormatter::LONG | RELATIVE);
    define('MEDIUM_RELATIVE', IntlDateFormatter::MEDIUM | RELATIVE);
}
$datefmt = new IntlDateFormatter('fr_FR', FULL_RELATIVE, IntlDateFormatter::NONE);
var_dump(
  INTL_ICU_VERSION,
  $datefmt->format(new DateTime('yesterday'))
);