Convert substr filter from character count to word count

Question

I\'m using the getExcerpt() function below to dynamically set the length of a snippet of text. However, my substr method is currently based on character count. I\'d like to

Answer 1

Use str_word_count

Depending on the parameters, it can either return the number of words in a string (default) or an array of the words found (in case you only want to use a subset of them).

So, to return the first 100 words of a snippet of text:

function getExcerpt($text)
{
    $words_in_text = str_word_count($text,1);
    $words_to_return = 100;
    $result = array_slice($words_in_text,0,$words_to_return);
    return ''.implode(" ",$result).'';
}