Advertising Gutenberg use on your website

The brand-new, all-singing, all-dancing, editor for WordPress is due imminently and I’ve been using the beta version for some time for creating posts on this site. Recently you may have noticed a little advertisement of this fact has appeared at the top of (some of) my posts – I’ve added this to help promote Gutenberg.

Let me share the code I’ve used to do this…

function add_gutenberg_promo( $content ) {
global $post;
if ( function_exists( 'gutenberg_post_has_blocks' ) && gutenberg_post_has_blocks( $post->ID ) && is_single() ) {
$content = '<div style="background:#fff8c4; border:1px solid #f2c779; border-radius:10px; padding:10px; margin-bottom:10px;">This post was created using Gutenberg, the new editor, coming soon, for WordPress. You can <a href="">learn more about it here</a>, <a href="">try the Beta plugin</a> or simply <a href="">try it out for yourself</a>, no site required.</div>' . $content;
return $content;
add_filter( 'the_content', 'add_gutenberg_promo' );
view raw functions.php hosted with ❤ by GitHub

This uses a Gutenberg function to see if any blocks exist in the current post. If so, and this is a single post, it will then add a simple text box to the top of the content. Obviously, please style the message box to taste.

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