/**
* Returns the portion of string specified by the start and length parameters. If $trimmarker is supplied, it is appended to the return string. This function works fine with multi-byte characters if mb_* functions exist on the server.
*
* @param string $str
* @param int $start
* @param int $length
* @param string $trimmarker
* @return string
*/
function xoops_substr($str, $start, $length, $trimmarker = '...')
{
xoops_load('XoopsLocal');
return XoopsLocal::substr($str, $start, $length, $trimmarker);
}
/**
* Returns the portion of string specified by the start and length parameters. If $trimmarker is supplied, it is appended to the return string. This function works fine with multi-byte characters if mb_* functions exist on the server.
*
* @param string $str
* @param int $start
* @param int $length
* @param string $trimmarker
*
* @return string
*/
function xoops_substr($str, $start, $length, $trimmarker = '...')
{
if (is_callable(array("XoopsLocal", "substr"))) {
return XoopsLocal::substr($str, $start, $length);
// Or
// return xoops_local("substr", $str, $start, $length);
}
if (!XOOPS_USE_MULTIBYTES) {
return strlen($str) - $start <= $length ? substr($str, $start, $length) : substr($str, $start, $length - strlen($trimmarker)) . $trimmarker;
}
if (function_exists('mb_internal_encoding') && @mb_internal_encoding(_CHARSET)) {
$str2 = mb_strcut($str, $start, $length - strlen($trimmarker));
return $str2 . (mb_strlen($str) != mb_strlen($str2) ? $trimmarker : '');
}
}
