How to get a few words from the string on PHP

fewWords.php

<?php

function fewWords($str, $limit) {
	return rtrim(implode(' ', array_slice(explode(' ', $str), 0, $limit)), ',-');
}

// Example:

$str = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt';

echo fewWords($str, 5); // Lorem ipsum dolor sit amet