/**
* nv_substr_clean()
*
* @param mixed $string
* @param string $mode
* @return
*/
function nv_substr_clean($string, $mode = 'lr')
{
$strlen = nv_strlen($string);
$pos_bg = nv_strpos($string, " ") + 1;
$pos_en = nv_strrpos($string, " ");
if ($mode == 'l') {
$string = "..." . nv_substr($string, $pos_bg, $strlen - $pos_bg);
} elseif ($mode == 'r') {
$string = nv_substr($string, 0, $strlen - $pos_en) . "...";
} elseif ($mode == 'lr') {
$string = "..." . nv_substr($string, $pos_bg, $pos_en - $pos_bg) . "...";
}
return $string;
}
/**
* nv_strrpos()
*
* @param mixed $haystack
* @param mixed $needle
* @param mixed $offset
* @return
*/
function nv_strrpos($haystack, $needle, $offset = null)
{
if (is_null($offset)) {
$ar = explode($needle, $haystack);
if (count($ar) > 1) {
array_pop($ar);
$haystack = join($needle, $ar);
return nv_strlen($haystack);
}
return false;
} else {
if (!is_int($offset)) {
trigger_error('nv_strrpos expects parameter 3 to be long', E_USER_WARNING);
return false;
}
$haystack = nv_substr($haystack, $offset);
if (false !== ($pos = nv_strrpos($haystack, $needle))) {
return $pos + $offset;
}
return false;
}
}