The MessageFormatter class
(PHP 5 >= 5.3.0, PHP 7, PECL intl >= 1.0.0)
Введение
MessageFormatter is a concrete class that enables users to produce concatenated, language-neutral messages. The methods supplied in this class are used to build all the messages that are seen by end users.
The MessageFormatter class assembles messages from various fragments (such as text fragments, numbers, and dates) supplied by the program. Because of the MessageFormatter class, the program does not need to know the order of the fragments. The class uses the formatting specifications for the fragments to assemble them into a message that is contained in a single string within a resource bundle. For example, MessageFormatter enables you to print the phrase "Finished printing x out of y files..." in a manner that still allows for flexibility in translation.
Previously, an end user message was created as a sentence and handled as a string. This procedure created problems for localizers because the sentence structure, word order, number format and so on are very different from language to language. The language-neutral way to create messages keeps each part of the message separate and provides keys to the data. Using these keys, the MessageFormatter class can concatenate the parts of the message, localize them, and display a well-formed string to the end user.
MessageFormatter takes a set of objects, formats them, and then inserts the formatted strings into the pattern at the appropriate places. Choice formats can be used in conjunction with MessageFormatter to handle plurals, match numbers, and select from an array of items. Typically, the message format will come from resources and the arguments will be dynamically set at runtime.
Обзор классов
Содержание
- MessageFormatter::create — Constructs a new Message Formatter
- MessageFormatter::formatMessage — Quick format message
- MessageFormatter::format — Format the message
- MessageFormatter::getErrorCode — Get the error code from last operation
- MessageFormatter::getErrorMessage — Get the error text from the last operation
- MessageFormatter::getLocale — Get the locale for which the formatter was created.
- MessageFormatter::getPattern — Get the pattern used by the formatter
- MessageFormatter::parseMessage — Quick parse input string
- MessageFormatter::parse — Parse input string according to pattern
- MessageFormatter::setPattern — Set the pattern used by the formatter
- PHP Руководство
- Функции по категориям
- Индекс функций
- Справочник функций
- Поддержка языков и кодировок
- Введение
- Установка и настройка
- Предопределенные константы
- Примеры
- The Collator class
- The NumberFormatter class
- The Locale class
- The Normalizer class
- The MessageFormatter class
- The IntlCalendar class
- The IntlTimeZone class
- The IntlDateFormatter class
- The ResourceBundle class
- The Spoofchecker class
- The Transliterator class
- The IntlBreakIterator class
- The IntlRuleBasedBreakIterator class
- The IntlCodePointBreakIterator class
- The IntlPartsIterator class
- The UConverter class
- Grapheme Функции
- IDN Функции
- IntlChar
- Exception class for intl errors
- The IntlIterator class
- intl Функции
Коментарии
MessageFormatter does not work with DateTime instances as parameters in PHP < 5.5. Instance will be converted to timestamp with value 0 (e.g. 1970-01-01) and following Notice will be raised: „Object of class DateTime could not be converted to int“. You have to manually convert the instance to timestamp in these old PHP versions.
<?php
$datetime = new DateTime();
if (PHP_VERSION_ID < 50500) { // PHP < 5.5 needs conversion to timestamp
MessageFormatter::formatMessage('en_US', 'Today is {0, date, full}.', array($datetime->getTimestamp()));
} else {
// current code
MessageFormatter::formatMessage('en_US', 'Today is {0, date, full}.', array($datetime));
}
?>