88 lines
2.1 KiB
PHP
88 lines
2.1 KiB
PHP
<?php
|
|
|
|
/**
|
|
* @see https://github.com/laminas/laminas-stdlib for the canonical source repository
|
|
* @copyright https://github.com/laminas/laminas-stdlib/blob/master/COPYRIGHT.md
|
|
* @license https://github.com/laminas/laminas-stdlib/blob/master/LICENSE.md New BSD License
|
|
*/
|
|
|
|
namespace Laminas\Stdlib\StringWrapper;
|
|
|
|
use Laminas\Stdlib\Exception;
|
|
|
|
class Intl extends AbstractStringWrapper
|
|
{
|
|
/**
|
|
* List of supported character sets (upper case)
|
|
*
|
|
* @var string[]
|
|
*/
|
|
protected static $encodings = ['UTF-8'];
|
|
|
|
/**
|
|
* Get a list of supported character encodings
|
|
*
|
|
* @return string[]
|
|
*/
|
|
public static function getSupportedEncodings()
|
|
{
|
|
return static::$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, $length = null)
|
|
{
|
|
// Due fix of PHP #62759 The third argument returns an empty string if is 0 or null.
|
|
if ($length !== null) {
|
|
return grapheme_substr($str, $offset, $length);
|
|
}
|
|
|
|
return grapheme_substr($str, $offset);
|
|
}
|
|
|
|
/**
|
|
* 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);
|
|
}
|
|
}
|