<span function</span> wp_cache_set( <span $key</span>, <span $data</span>, <span $group</span> = '', <span $expire</span> = 0<span ) {
</span><span global</span> <span $wp_object_cache</span><span ;
</span><span return</span> <span $wp_object_cache</span>->set( <span $key</span>, <span $data</span>, <span $group</span>, (int) <span $expire</span><span );
}</span>
<span function</span> wp_cache_get( <span $key</span>, <span $group</span> = '', <span $force</span> = <span false</span>, &<span $found</span> = <span null</span><span ) {
</span><span global</span> <span $wp_object_cache</span><span ;
</span><span return</span> <span $wp_object_cache</span>->get( <span $key</span>, <span $group</span>, <span $force</span>, <span $found</span><span );
}</span>
ID,’related_posts’);
=->ID,,'related_posts',3600);
<span global</span> <span $post</span><span ;
</span><span $related_posts_data</span> = wp_cache_get(<span $post</span>->ID,'related_posts'<span );
</span><span if</span>(<span false</span> === <span $related_posts_data</span><span ){
</span><span $related_posts_data</span> =<span wp_get_related_posts();
wp_cache_set(</span><span $post</span>->ID,<span $related_posts_data</span>,'related_posts',3600<span );
}
</span><span echo</span> <span $related_posts_data</span>;
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