Get specific number of words from a string.

brief-text

/**
 * returns a specific number of words
 * 
 * @param  string  $string     the whole string
 * @param  integer $num_words  number of words to return from the whole string
 * @return string              returned string
 */
if (!function_exists("brief_text")) { 
    function brief_text($string, $num_words = 50) {
        $string = trim(preg_replace('/\s+/', ' ', $string));
        $words = explode(" ", $string);
        $required_words = array_slice($words, 0, $num_words); // get sepecific number of elements from the array
        return implode(" ", $required_words);
    }
}