Delete Spam Users from WordPress

wp-delete-spam-users.php

<?php
add_action(
	'init',
	function() {
		if ( isset( $_GET['cleanup_spams'] ) ) {
			global $wpdb;
			$query = "SELECT * 
			FROM  $wpdb->users
			WHERE user_email LIKE '%.be'";
			$users = $wpdb->get_results( $query );
			echo 'Total users to delete: ' . count( $users ) . '<hr/><br/>';
			foreach ( $users as $user ) {
				echo 'Deleted : ' . $user->user_email . '<hr/>';
				wp_delete_user( $user->ID );
			}
		}
	}
);

// How to Run:
// Simply open the website by adding ?cleanup_spams in your url
// e.g. http://www.example.com/?cleanup_spams
// If the script timeout, increase max_execution_time