[Resolved] Schema Markup with Elements

[Reza]

Hi,

I would like to add Schema markups to my articles using a hook. I am not using any SEO or page building plugins, if possible I would like to keep it that way..

<script type=”application/ld+json”>
{“@context”:”http://schema.org&#8221;,
“@type”:”—–”,
mainEntityOfPage”:”—–“,
“url”:”—–“,
“headline”:”—–“,
“description”:”—–“,
“logo”:{“@type”:”ImageObject”,”url”:”—–“,”width”:xxx,”height”:xx}},
“articleSection”:”—–“,
“keywords”:[“—–“,”—–“,”—–“],
“image”:[{“@type”:”ImageObject”,”url”:”—–“,”width”:xxx,”height”:xxx},
</script>

I understand that this is the script I have to insert in the header.

Could anyone please help on how to best implement this on my posts AND how to automatically fill out the blanks. I would like to use the post’s excerpt for “description”. If I am not mistaken, WordPress automatically creates an excerpt if the manual excerpt box is empty.

As far as keywords are concerned, is there a way to add them without using a plugin like ACF?

Also is there a practical way to change “@type” depending on tags? Like the default being “Article” and if the article has a tag called “News”, the value will be “NewsArticle” instead.

Thanks in advance

[Tom]

Hi there,

You could use a Hook Element for this, but it will require a certain amount of PHP/WordPress knowledge.

To get the excerpt, you can use this function: https://developer.wordpress.org/reference/functions/get_the_excerpt/

When it comes to getting the logo URL, width and height, this should help: https://wordpress.stackexchange.com/a/356961/90661

The same applies for the featured image, but you’d replace $logo with get_the_ID() to get the featured image.

Keywords could be tough depending on where they’re coming from.

As for the type, you could try something like:

$type = 'Article';

if ( has_tag( 'News' ) ) {
    $type = 'NewsArticle';
}

[Reza]

Hi,

So it is not possible to add template tags like “headline”:”{{post_title}}“, to fill out the fields?

[David]

Hi there,

Template Tags only work if they are output within a Header Element, they’re not a global thing.

[Reza]

Hi,

Is this approach a good idea or should I look for a way using the Loop? Not that I yet know what to do in both cases but using hooks seems more appealing.

Any guidance would be much appreciated, I have nothing against detailed guides 😉

[David]

This is where SEO and other plugins make stuff easier. If you’re not after a full blown SEO plugin then maybe this:

https://en-gb.wordpress.org/plugins/wp-structuring-markup/

If you want to pursue the manual route then maybe this users example will help:

https://help.gulshankumar.net/t/add-blogposting-article-schema-markup-in-wordpress-without-any-plugin/2099

[Reza]

I’ll try to wrap my head around the code and get back to you if there are any theme related questions.

Thanks for the help.

[David]

That code looks like it should work as it is, its not theme specific.
You’re welcome

[Author]

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