<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Specialized String Functions for phpMyAdmin
*
* Defines a set of function callbacks that have a pure C version available if
* the "ctype" extension is available, but otherwise have PHP versions to use
* (that are slower).
*
* The SQL Parser code relies heavily on these functions.
*
* @package PhpMyAdmin-String
* @subpackage MB
*/
if (! defined('PHPMYADMIN')) {
exit;
}

/**
* Returns length of string depending on current charset.
*
* @param string $string string to count
*
* @return int string length
*/
function PMA_strlen($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 $length length of substring
*
* @return string the sub string
*/
function PMA_substr($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 $haystack or false
*/
function PMA_strpos($haystack, $needle, $offset = 0)
{
return mb_strpos($haystack, $needle, $offset);
}

/**
* Make a string lowercase
*
* @param string $string the string being lowercased
*
* @return string the lower case string
*/
function PMA_strtolower($string)
{
return mb_strtolower($string);
}

?>