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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Implements PMA_StringByte interface using the "mbstring" extension.
*
* @package PhpMyAdmin-String
* @subpackage MB
*/
if (! defined('PHPMYADMIN')) {
exit;
}
require_once 'libraries/StringByte.int.php';
/**
* Implements PMA_StringByte interface using the "mbstring" extension.
*
* @package PhpMyAdmin-String
* @subpackage MB
*/
class PMA_StringMB implements PMA_StringByte
{
/**
* Returns length of string depending on current charset.
*
* @param string $string string to count
*
* @return int string length
*/
public function strlen($string)
{
return mb_strlen($string);
}
/**
* Returns substring from string, works depending on current charset.
*
* @param string $string string to count
* @param int $start start of substring
* @param int $length length of substring
*
* @return string the sub string
*/
public function substr($string, $start, $length = 2147483647)
{
return mb_substr($string, $start, $length);
}
/**
* Returns postion of $needle in $haystack or false if not found
*
* @param string $haystack the string being checked
* @param string $needle the string to find in haystack
* @param int $offset the search offset
*
* @return integer position of $needle in $haystack or false
*/
public function strpos($haystack, $needle, $offset = 0)
{
return mb_strpos($haystack, $needle, $offset);
}
/**
* Make a string lowercase
*
* @param string $string the string being lowercased
*
* @return string the lower case string
*/
public function strtolower($string)
{
return mb_strtolower($string);
}
/**
* Get the ordinal value of a multibyte string
* (Adapted from http://www.php.net/manual/en/function.ord.php#72463)
*
* @param string $string the string for which ord is required
*
* @return string the ord value
*/
public function ord($string)
{
$str = mb_convert_encoding($string, "UCS-4BE", "UTF-8");
$substr = mb_substr($str, 0, 1, "UCS-4BE");
$val = unpack("N", $substr);
return $val[1];
}
}
?>
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