How to remove Custom Field section from Wordpress?

Question

I am trying to remove custom fields section from Wordpress backend. I think I found a function that display custom fields. The function is located in wp-admin/edit-page-form.php line 181.

do_meta_boxes('page','normal',$post)

when I remove the function, Wordpress does not display other boxes as well.

How do I remove a particular box from Wordpress backend?

Answer 1

function remove_metaboxes() {
 remove_meta_box( 'postcustom' , 'page' , 'normal' ); //removes custom fields for page
 remove_meta_box( 'commentstatusdiv' , 'page' , 'normal' ); //removes comments status for page
 remove_meta_box( 'commentsdiv' , 'page' , 'normal' ); //removes comments for page
 remove_meta_box( 'authordiv' , 'page' , 'normal' ); //removes author for page
}
add_action( 'admin_menu' , 'remove_metaboxes' );

change "page" to "post" to do this for posts

Put this in your function.php file

Answer 2

You're changing core files, which is not good idea when it comes to upgrades and the end-user. Go to "Screen Options" and untick "Custom Fields," or use a plugin http://wordpress.org/extend/plugins/custom-write-panel/ to hide editor panels. Or, check the plugin for the code you need to disable each editor option without using the plugin.