wordpress - Show image captions inside the_content

Question

I read the post content within my own Wordpress theme using the_content(). How do I achieve that the images within the content are output with captions? Preferably without a plugin, directly via the loop or the functions.php.

(The media are already provided with titles, etc.)

Answer 1

Images in the post/page content which have captions are automatically output as figure elements including the caption, see the official docs here: https://developer.wordpress.org/themes/functionality/media/images/#caption