Multiple admin emails for WordPress

code.php

<?php
/**
 * Multiple administrator emails
 * @author Luiz Bills
 */
add_filter( 'option_admin_email', function ( $value ) {
	global $pagenow;
	$ignored_pages = [ 'options-general.php' ];
	
	if ( in_array( $pagenow, $ignored_pages, true ) ) {
		return $value;
	}
	
	$list = explode( ',', $value );
	
	$list[] = '[email protected]';
	$list[] = '[email protected]';
	
	return implode( ',', $list );
} );