List all the authors of the site, with several options available.
the_author_posts_link
Displays an HTML link to the author page of the current post’s author.
get_alloptions_110
Retrieve all options as it was for 1.2.
meta_form
Prints the form in the Custom Fields meta box.
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list_meta
Outputs a post’s public meta data in the Custom Fields meta box.
update_meta
Update post meta data by meta ID.
has_meta
Get meta data for the given post ID.
get_meta_keys
Get a list of previously defined keys.
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delete_meta
Delete post meta data by meta ID.
add_meta
Add post meta data defined in $_POST superglobal for post with given ID.
wp_create_thumbnail
This was once used to create a thumbnail from an Image given a maximum side size.
wp_dropdown_cats
Legacy function used for generating a categories drop-down control.
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admin_footer
This action is documented in wp-admin/admin-footer.php
