Примеры
PHP Manual

Basic usage of this extension

Each module provides two kind of APIs: a procedural one and an object oriented one. Both are actually identical and described in the corresponding document.

Замечание:

All input strings must be in UTF-8 encoding. All output strings are also in UTF-8.

Пример #1 Example of using the procedural API

<?php
$coll  
collator_create('en_US');
$result collator_compare($coll"string#1""string#2");
?>

Пример #2 Example of using the object-oriented API

<?php
$coll 
= new Collator('en_US');
$al   $coll->getLocale(Locale::ACTUAL_LOCALE);
echo 
"Actual locale: $al\n";

$formatter = new NumberFormatter('en_US'NumberFormatter::DECIMAL);
echo 
$formatter->format(1234567);
?>

Примеры
PHP Manual