Trim excerpt without incomplete words

ExcerptTrimmer

function excerpt_char($text, $lim, $delim="…") 
{ 
    $len = strlen($text); 
    if ($len <= $lim) return $text; 
 
    // split at first word boundary after $lim chars 
    preg_match('/(.{' . $lim . '}.*?)\b/', $text, $matches); 
 
    $text = preg_replace("'(&[a-zA-Z0-9#]+)$'", '$1;', $matches[1]); 
    $text .= $delim; 
    return $text; 
}

// Can pass in WordPress excerpt like this - echo excerpt_char(get_the_excerpt(), 200);
// This will limit the excerpt to around 200 characters and will not leave you with an incomplete word.