WordPress at a glance

remove_meta_box() WP 1.0

Removes a meta box from one or more screens.

Notes:

  • Global. Array. $wp_meta_boxes
  • Since 4.4.0 The $screen parameter now accepts an array of screen IDs.

No Hooks.

Return

Nothing (null).

Usage

remove_meta_box( $id, $screen, $context );
$id(string) (required)
Meta box ID (used in the 'id' attribute for the meta box).
$screen(string/array/WP_Screen) (required)
The screen or screens on which the meta box is shown (such as a post type, 'link', or 'comment'). Accepts a single screen ID, WP_Screen object, or array of screen IDs.
$context(string) (required)
The context within the screen where the box is set to display. Contexts vary from screen to screen. Post edit screen contexts include 'normal', 'side', and 'advanced'. Comments screen contexts include 'normal' and 'side'. Menus meta boxes (accordion sections) all use the 'side' context.

Code of remove_meta_box: wp-admin/includes/template.php VER 4.9.8

<?php
function remove_meta_box( $id, $screen, $context ) {
	global $wp_meta_boxes;

	if ( empty( $screen ) ) {
		$screen = get_current_screen();
	} elseif ( is_string( $screen ) ) {
		$screen = convert_to_screen( $screen );
	} elseif ( is_array( $screen ) ) {
		foreach ( $screen as $single_screen ) {
			remove_meta_box( $id, $single_screen, $context );
		}
	}

	if ( ! isset( $screen->id ) ) {
		return;
	}

	$page = $screen->id;

	if ( !isset($wp_meta_boxes) )
		$wp_meta_boxes = array();
	if ( !isset($wp_meta_boxes[$page]) )
		$wp_meta_boxes[$page] = array();
	if ( !isset($wp_meta_boxes[$page][$context]) )
		$wp_meta_boxes[$page][$context] = array();

	foreach ( array('high', 'core', 'default', 'low') as $priority )
		$wp_meta_boxes[$page][$context][$priority][$id] = false;
}

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From tag: metabox (widget)

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