Counting String Characters

gistfile1.txt

function smartShorten($charset='utf-8', $str, $maxlength = 140, $max_cut_len = 10) {

  $len = iconv_strlen($str, $charset);

	if ($len > $maxlength) {
		$str = iconv_substr($str, 0, $maxlength, $charset);
    	$prev_space_pos = iconv_strrpos($str, ' ', $charset);
		if ( ($maxlength-$prev_space_pos) < $max_cut_len) {
			$str = iconv_substr($str, 0, $prev_space_pos, $charset);
		}
		$str .= '...';	
	}
	return $str;
}