Manually Add JSON-LD Article to WordPress in 5 minutes without Plugin

Schema JSON-LD markup for linking Data in a Website has gained lots of popularity for the past couple years, primarily because its is the recommended and preferred structured data mark-up prescribed by none other than Google Developers. In this article, I have published a code, which can enable anybody, including lay-persons, not well-versed with coding to add Schema JSON-LD Blogposting vocabulary for articles to their WordPress Blogs within 5 minutes without the use of any resource consuming free or paid Rich Snippets Mark-UP WordPress-Plugins.

Even though there are scores of articles and tutorials available on the internet, giving examples of JSON-LD mark-up and other Semantic Microdata and Microformat Structured Data/Rich Snippets Mark-Up for Blogs, I could not find any particular tutorial satisfactory because there was no ready-made code, which could be easily copied to your Blog.

The essential and requires properties needed for Google Structered Data Tool validation like mainEntryofPage, headline, Date-Published-Modified, Author Mark-Up, Publisher Logo etc. are met using the code.

//For articlesJSON-LD
add_action(‘wp_head’,’insert_json_ld_article’);
function insert_json_ld_article (){
if (is_single()) {
if (have_posts()) : while (have_posts()) : the_post();

//Configuration
$context = ‘http://schema.org’;
$type = ‘BlogPosting’;
$name = get_the_title();
$authorType = ‘Person’;
$authorName = get_the_author();
$dataPublished = get_the_date(‘Y-n-j’);
$dateModified = get_the_modified_time(‘Y-n-j’);
$thumbnail_id = get_post_thumbnail_id($post->ID);
// ↓ Please set it yourself
$imageLogo = ‘http://www.royalchef.info/wp-content/uploads/2016/12/Royalchef-Sujata-e1481865798965.jpg’;
$category_info = get_the_category();
$articleSection = $category_info[0]->name;
$articleBody = get_the_content();
$url = get_permalink();
$publisherType = ‘Organization’;
$publisherName = get_bloginfo(‘name’);

$image = wp_get_attachment_image_src( $thumbnail_id, ‘full’ );
$imageurl = $image[0];
// When the thumbnail can not be taken, set the first picture in the sentence
if(!$imageurl){
$imageurl = catch_that_image();
}
// If the first image in the sentence could not be taken, set the logo set above
if(!$imageurl){
$imageurl = $imageLogo;
}

// Get the size of the image
$imginfo = getimagesize($imageurl);
$imagewidth = $imginfo[0];
$imageheight = $imginfo[1];

// Obtain the size of the logo image
$imginfoLogo = getimagesize($imageLogo);
$imagewidthLogo = $imginfoLogo[0];
$imageheightLogo = $imginfoLogo[1];

$json= “
\”@context\” : \”{$context}\”,
\”@type\” : \”{$type}\”,
\”mainEntityOfPage\” : {
\”@type\” : \”WebPage\”,
\”url\” : \”{$url}\”
},
\”headline\” : \”{$name}\”,
\”author\” : {
\”@type\” : \”{$authorType}\”,
\”name\” : \”{$authorName}\”
},
\”datePublished\” : \”{$dataPublished}\”,
\”dateModified\” : \”{$dateModified}\”,
\”image\” : {
\”@type\” : \”imageObject\”,
\”url\” : \”{$imageurl}\”,
\”width\” : {$imagewidth},
\”height\” : {$imageheight}
},
\”articleSection\” : \”{$articleSection}\”,
\”publisher\” : {
\”@type\” : \”{$publisherType}\”,
\”name\” : \”{$publisherName}\”,
\”logo\” : {
\”@type\” : \”imageObject\”,
\”url\” : \”{$imageLogo}\”,
\”width\” : {$imagewidthLogo},
\”height\” : {$imageheightLogo}
}
}
“;

echo ‘<script type=”application/ld+json”>{‘.$json.’}</script>’;
endwhile; endif;
rewind_posts();
}
}

function catch_that_image() {
global $post, $posts;
$first_img = ”;
ob_start();
ob_end_clean();
$output = preg_match_all(‘/<img.+src=[\'”]([^\'”]+)[\'”].*>/i’, $post->post_content, $matches);
$first_img = $matches[1][0];

return $first_img;
}

 

The mark-up should be inserted in the function.php file, I have added it before the closing ?>. Replace the logo-url in bold letters with your Logo url. I have included a 80px × 60px for my site, which does not show any validation errors in the Google Mark-Up tool.

About Sujata Nerurkar (1949 Articles)
I am an Expert Indian Chef, Food Columnist and Adviser. I write on food and recipes on my site and conduct cooking, candle making, chocolate making, dry cleaning, decoration and other art classes. The recipes and food themes given by me are unique and original and appear regularly in numerous reputed periodicals, newspapers and magazines.

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