Add schema.org itemprop code to the (custom) post content for search engines and bots for better SERP results

Umbrovskis.com

This plugin is very simple. Using WordPress built in function to filter element attributes and adding < meta > tags with schema.org item properties.
This plugin will NOT FIX BADly programmed WordPress sites!
<a href="https://simplemediacode.com/?utm_source=https://wordpress.org/extend/plugins/itempropwp/&utm_medium=link&utm_campaign=itempropWP-WordPress-theme-feature-requests-3.5.201610051&utm_content=WordPress-plugin-itempropwp-3.5.201610051" rel="nofollow ugc">Project itempropWP homepage</a>
Have a good idea for improvement? <a href="https://github.com/rolandinsh/itempropwp/issues" rel="nofollow ugc">Share it</a> | <a href="https://github.com/rolandinsh/itempropwp/issues" rel="nofollow ugc">BUG report</a>
Example output:
<pre><code>
 
 
 <meta itemprop="name" content="Title of the Article" />
 <meta itemscope itemprop="mainEntityOfPage" 
 itemType="https://schema.org/WebPage" 
 itemid="http://fulllink.example.com/seo-optimized-article/"/>

 <meta itemprop="url" content="http://fulllink.example.com/seo-optimized-article/" />
 
 <meta itemprop="url" content="http://fulllink.example.com/seo-optimized-article/example.jpg" />
 <meta itemprop="width" content="640"/>
 <meta itemprop="height" content="480"/>
 
 <meta itemprop="author" content="http://fulllink.example.com/author/authorusername/"/>
 <meta itemprop="description" content="excerpt from post OR first 170 symbols (with full word), ..." />
 <meta itemprop="datePublished" content="2012-09-13 19:17:21"/>
 <meta itemprop="dateModified" content="2016-02-15 13:33:25" />
 <meta itemprop="interactionCount" content="UserComments:356"/>
 
 
 <meta itemprop="url" content="http://fulllink.example.com/logo.jpg">
 
 <meta itemprop="name" content="Example Blog">
 
 

</code></pre>
Review
<pre><code><div itemprop="review" itemscope itemtype="http://schema.org/Review">
 <meta itemprop="name" content="Item Title is greate!" />
 <meta itemprop="author" content="Rolands Umbrovskis" />
 <meta itemprop="datePublished" content="2011-03-25" />
 
 <meta itemprop="worstRating" content = "1"/>
 <meta itemprop="ratingValue" content="4.5" />
 <meta itemprop="bestRating" content="5" />
 
 
 <meta itemprop="name" content="Item Title" />
 

 <div itemscope itemtype="http://schema.org/Product">
 <meta itemprop="name" content="Item Title" />
 
 <meta itemprop="price" content="55.36" />
 <meta itemprop="priceCurrency" content="USD" />
 <link itemprop="availability" href="http://schema.org/InStock" />
 
 </div>
 <meta itemprop="description" content="Great Item Title for the price." />
</div>
</code></pre>
How does it work?
This assumes that Your page is not fully integrated with HTML5’s data properties for microdata. This plugin will create small code inside Your <code>full content</code>, with extra microdata from schema.org. This will be ONLY on singular pages – post, page or your custom post type.
Once we are on singular page:
<ul>
<li>we will extract from it EXCERPT.</li>
<li>If You haven’t provided excerpt, plugin will look-up for post content, and downsize it to 170 symbols up to full word.</li>
<li>If your content consist ONLY of shortcode, it will strip it out, and leave empty content. 🙁</li>
<li>If we have empty content, from previous step, we will use post title. Not best choice, but at least we have some <code>description</code>.</li>
<li>If Your post do not have even title, plugin will give up and your description will be empty. (This is very bad :’) )</li>
</ul>
Other options, like <code>datePublished</code>, <code>dateModified</code> (if enabled), <code>UserComments</code> (if enabled), <code>url</code> are taken from post
<ul>
<li><a href="https://www.facebook.com/simplemediacode" rel="nofollow ugc">SMC Facebook</a></li>
<li><a href="https://www.facebook.com/RolandsUmbrovskis.public" rel="nofollow ugc">Author’s Facebook page</a></li>
</ul>
Development: <a href="https://github.com/rolandinsh/itempropwp" rel="nofollow ugc">Github</a>
Developer on twitter <a href="http://twitter.com/UmbrovskisCom" rel="nofollow ugc">@UmbrovskisCom</a> / <a href="http://twitter.com/SimpleMediaCode" rel="nofollow ugc">@SimpleMediaCode</a>
Require PHP at least 5.3

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