From 955e03d6997e0f2271f1d7eddd17494abceefd5a Mon Sep 17 00:00:00 2001
From: Mireya Andres <mandres@freelancer.com>
Date: Tue, 11 Oct 2016 13:19:59 +0800
Subject: [PATCH] Allow optional character = in domain syntax

---
 src/Phois/Whois/Whois.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Phois/Whois/Whois.php b/src/Phois/Whois/Whois.php
index 739de3c..3235bc4 100644
--- a/src/Phois/Whois/Whois.php
+++ b/src/Phois/Whois/Whois.php
@@ -189,7 +189,7 @@ public function isValid()
         ) {
             $tmp_domain = strtolower($this->subDomain);
             if (
-                preg_match("/^[a-z0-9\-]{3,}$/", $tmp_domain)
+                preg_match("/^=?[a-z0-9\-]{3,}$/", $tmp_domain)
                 && !preg_match("/^-|-$/", $tmp_domain) //&& !preg_match("/--/", $tmp_domain)
             ) {
                 return true;