How to share content from our site to google plus

keerthi

How to share content from our site to google plus

I tried it like this

<a href="javascript:void(0);" onclick="window.open('https://plus.google.com/share?url=<?php echo urlencode('http://example.com');?>&via=example', 'Share on Google Plus', 'width=600,height=400,left=450').focus();" >

Here I can not share content from my site. How it is possible with this?
I want to share content (example: hello) to goggle plus with sharing capability