bp_core_admin_create_background_page()

function bp_core_admin_create_background_page() {
	if ( ! current_user_can( 'install_plugins' ) ) {
		wp_send_json_error();
	}

	if ( empty( $_POST['page'] ) ) {
		wp_send_json_error();
	}

	$page_ids    = bp_core_get_directory_page_ids( 'all' );
	$valid_pages = array_merge( bp_core_admin_get_directory_pages(), bp_core_admin_get_static_pages() );

	if ( isset( $valid_pages[ $_POST['page'] ] ) ) {

		$default_title = bp_core_get_directory_page_default_titles();
		$title         = ( isset( $default_title[ $_POST['page'] ] ) ) ? $default_title[ $_POST['page'] ] : $valid_pages[ $_POST['page'] ];

		$new_page = array(
			'post_title'     => $title,
			'post_status'    => 'publish',
			'post_author'    => bp_loggedin_user_id(),
			'post_type'      => 'page',
			'comment_status' => 'closed',
			'ping_status'    => 'closed',
		);

		$page_id                    = wp_insert_post( $new_page );
		$page_ids[ $_POST['page'] ] = (int) $page_id;

		// If forums page then store into the _bbp_root_slug_custom_slug option.
		if ( 'new_forums_page' === $_POST['page'] ) {
			bp_update_option('_bbp_root_slug_custom_slug', $page_id );
		// Else store into the directory pages.
		} else {
			bp_core_update_directory_page_ids( $page_ids );
		}

		// If forums page then change the BBPress root slug _bbp_root_slug and flush the redirect rule.
		if ( 'new_forums_page' === $_POST['page'] ) {
			$slug = get_post_field( 'post_name', $page_id );
			bp_update_option('_bbp_root_slug', $slug);
			flush_rewrite_rules(true);
		}

	}

	$response =array(
		'feedback' => __( 'Added successfully', 'buddyboss' ),
		'type'     => 'success',
		'url' => add_query_arg([
			'page' => 'bp-pages',
			'added' => 'true',
		], admin_url( 'admin.php' ) )
	);

	wp_send_json_success( $response );
}