Yuri Kuznetsov
84 lines
2.0 KiB
PHP
84 lines
2.0 KiB
PHP
<?php
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/**
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* Zend Framework (http://framework.zend.com/)
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*
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* @link http://github.com/zendframework/zf2 for the canonical source repository
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* @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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namespace Zend\Stdlib\StringWrapper;
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use Zend\Stdlib\Exception;
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class Intl extends AbstractStringWrapper
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{
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/**
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* List of supported character sets (upper case)
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*
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* @var string[]
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*/
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protected static $encodings = array('UTF-8');
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/**
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* Get a list of supported character encodings
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*
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* @return string[]
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*/
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public static function getSupportedEncodings()
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{
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return static::$encodings;
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}
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/**
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* Constructor
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*
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* @throws Exception\ExtensionNotLoadedException
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*/
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public function __construct()
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{
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if (!extension_loaded('intl')) {
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throw new Exception\ExtensionNotLoadedException(
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'PHP extension "intl" is required for this wrapper'
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);
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}
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}
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/**
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* Returns the length of the given string
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*
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* @param string $str
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* @return int|false
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*/
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public function strlen($str)
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{
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return grapheme_strlen($str);
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}
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/**
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* Returns the portion of string specified by the start and length parameters
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*
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* @param string $str
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* @param int $offset
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* @param int|null $length
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* @return string|false
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*/
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public function substr($str, $offset = 0, $length = null)
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{
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return grapheme_substr($str, $offset, $length);
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}
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/**
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* Find the position of the first occurrence of a substring in a string
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*
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* @param string $haystack
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* @param string $needle
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* @param int $offset
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* @return int|false
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*/
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public function strpos($haystack, $needle, $offset = 0)
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{
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return grapheme_strpos($haystack, $needle, $offset);
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}
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}
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