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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* Specialized String Functions for phpMyAdmin
*
* Copyright 2002 Robin Johnson <robbat2@users.sourceforge.net>
* http://www.orbis-terrarum.net/?l=people.robbat2
*
* 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.
*
* @version $Id$
*/
/**
* Returns length of string depending on current charset.
*
* @uses mb_strlen()
* @param string string to count
* @return int string length
* @access public
* @author nijel
* @todo rename to PM_STR_len()
*/
function PMA_strlen($string)
{
return mb_strlen($string);
}
/**
* Returns substring from string, works depending on current charset.
*
* @uses mb_substr()
* @param string string to count
* @param int start of substring
* @param int length of substring
* @return int substring
* @access public
* @author nijel
* @todo rename to PM_STR_sub()
*/
function PMA_substr($string, $start, $length = 2147483647)
{
return mb_substr($string, $start, $length);
}
/**
* returns postion of $needle in $haystack or false if not found
*
* @uses mb_strpos()
* @param string $needle
* @param string $haystack
* @return integer position of $needle in $haystack or false
*/
function PMA_STR_pos($haystack, $needle, $offset = 0)
{
return mb_strpos($haystack, $needle, $offset);
}
/**
* returns right most postion of $needle in $haystack or false if not found
*
* @uses mb_strrpos()
* @param string $needle
* @param string $haystack
* @return integer position of $needle in $haystack or false
* @todo add workaround for offset for PHP < 5.2.0
*/
function PMA_STR_rPos($haystack, $needle, $offset = 0)
{
return mb_strrpos($haystack, $needle);
}
?>
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