Adding get_random_suggestion_by_tags.php

Author: Marcel Moll

get_random_post_suggestion_by_tags.php

@@ -0,0 +1,17 @@
+//get categories of post
+$tags = get_the_terms( get_the_ID(), 'tag' );
+
+//extract tag id's from term objects
+$tag_ids = array_column($tags, 'term_id');
+
+//concat id's to a string with ',' as seperator
+$tags_string = implode($tag_ids, ',');
+
+//get five random posts that are in any tag of the current post
+$posts = query_posts([
+    'post_not_in' => get_the_ID(),
+    'tag__in' => $categories_string,
+    'order' => 'ASC',
+    'orderby' => 'rand',
+    'post_per_page' => 5
+]);