after change site url wordpress ERR_TOO_MANY_REDIRECTS code example

Example 1: ERR_TOO_MANY_REDIRECTS wordpress

# update wp-config file
define('WP_HOME','http://example.com');
define('WP_SITEURL','http://example.com');

#also add
define('FORCE_SSL_ADMIN', true);
if (strpos($_SERVER['HTTP_X_FORWARDED_PROTO'], 'https') !== false)
    $_SERVER['HTTPS']='on';

Example 2: wp-admin too many times redirect wordpress

if (strpos($_SERVER['HTTP_X_FORWARDED_PROTO'], 'https') !== false)
   $_SERVER['HTTPS']='on';