Button to share on Likedin

Question

I’m trying to share news from my site on Likedin, only I’m not able to share.

I tried to follow this topic Create share button on Linkedin only it didn’t work for me.

My code:

<a href="#" onclick="linkedin(event, '<?= Site ?>/noticias/?noticia=2', '<?= $noticia->title ?>');return false;">
    <button type="button" class="btn info";"><i class="fab fa-linkedin-in"></i></button>
</a>

linkedin = function (event, s, a){
    event.preventDefault();
    window.open('https://www.linkedin.com/cws/share?url=' +s+ '?name=' +a, 'newwindow', 'width=680, height=450');
};

He’s not sending the id from news to sharing.