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