Problem solved:
<?php echo get_post_meta( get_the_ID(), 'doc', true ) ?>
‘doc’ fetches one of meta_boxes array items. Then you can echo them
And.. check if you are editing the right single.php (my mistake).
Problem solved:
<?php echo get_post_meta( get_the_ID(), 'doc', true ) ?>
‘doc’ fetches one of meta_boxes array items. Then you can echo them
And.. check if you are editing the right single.php (my mistake).