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/***
**** LIMIT WORDS IN EXCERPTS (or any supplied content)
Usage:
$text = get_the_excerpt();
echo string_limit_words($text, 40);
*/

function string_limit_words($string, $word_limit) {
  $words = explode(' ', $string, ($word_limit + 1));
  if(count($words) > $word_limit)
  array_pop($words);
  return implode(' ', $words);
}