<?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];

}

}

?>