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Kaj Clausen
Kaj Clausen
15,192 Points

Outputting a list of available meta field keys for a given post?

How did you find the _wp_attachment_image_alt meta key? Is there a way to var_dump available meta fields, even the ones that are empty?

<?php

$meta = get_post_meta( get_post_thumbnail_id() );
echo var_dump($meta);

?>