Fb:share-button
From Facebook Developer Wiki
Description
Renders a standard Facebook Share button in a profile for the specified URL or content. Use this tag if you've already implemented Facebook Connect on your site. If you have a website but have not implemented Facebook Connect on it yet, then follow the steps for implementing the Share button using <a> tags at Facebook Share.
Important: All attributes in the table below must be written in all lowercase letters.
Attributes
| Required | Name | Type | Description | |
| required | class | string | The type of share button. When used as an FBML tag, valid values are url, to render a share of the URL specified with the href attribute, and meta, to render a share with the given data. When used as an XFBML tag, the value must be url. | |
|---|---|---|---|---|
| href | string | The reference URL to share. This attribute is required for the url class only. You must specify the full URL to the page you are sharing. | ||
| optional | meta | string | The metadata about the shared item. See descriptions of the necessary data. The meta class may contain this attribute. (This attribute is not supported in XFBML.) | |
| link | string | The content (such as image thumbnails) for the shared item. See descriptions of the necessary data. The meta class may contain this attribute. (This attribute is not supported in XFBML.) | ||
| type | string | This attribute must be one of: box_count, button_count, button, icon, or icon_link. See descriptions and images describing each option. The value for the attribute indicates how the Share button will be rendered; it does not affect functionality. (This attribute is only supported in XFBML.) (Default value is icon_link.) |
Examples
If you're formatting the tag as XFBML for Facebook Connect, you must use a closing tag.
<fb:share-button href="http://apps.facebook.com/example" type="box_count"></fb:share-button>
 |
<fb:share-button class="meta" type="icon_link">
<meta name="medium" content="blog"/>
<meta name="title" content="Leonidas in All of Us"/>
<meta name="video_type" content="application/x-shockwave-flash"/>
<meta name="video_height" content="345"/>
<meta name="video_width" content="473"/>
<meta name="description" content="That's the lesson 300 teaches us."/>
<link rel="image_src" href="http://9.content.collegehumor.com/d1/ch6/f/6/collegehumor.b38e345f621621dfa9de5456094735a0.jpg"/>
<link rel="video_src" href="http://www.collegehumor.com/moogaloop/moogaloop.swf?clip_id=1757757&autoplay=true"/>
<link rel="target_url" href="http://www.collegehumor.com/video:1757757"/>
</fb:share-button>
 |
