Sub words with length

sub-words.php

<?php
// Sub words with length
function truncate( $text, $length = 100, $more = null ) {
	if ( null === $more )
		$more = ' ...';
	$text = strip_tags( $text );
	$text = substr($text, 0, $length - strlen($more) + 1);

	$words_array = preg_split("/[\s]+/", $text);
	array_pop( $words_array );
	$text = implode( ' ', $words_array );
	$text .= $more;

	return $text;
}
?>