[site-reviews] Use an excerpt of the review for the title

/**
 * Replaces the title of a review with the first few words of the review text
 * @param object $review
 * @return object
 */
add_filter( 'site-reviews/get/review', function( $review ) {
    $limit = 6; // change this number to the desired number of words
    $split = 0;
    if( str_word_count( $review->content, 0 ) > $limit ) {
        $words = array_keys( str_word_count( $review->content, 2 ));
        $split = $words[$limit];
    }
    $review->title = substr( $review->content, 0, $split );
    return $review;
});