Fixed bug #80077

Quoting from the bug report:

> The domain names passed to getmxrr() do not contain a trailing dot.
> DNS lookups which do not find records will (depending on the local
> resolver config) try again by adding the local domain to the end of
> the searched host/domain. In many environments there's an mx record
> for any subdomain of the local domain and the MX query will return
> a hit. But the test expects no hit. So the test fails when checking
> that "qa.php.net" does not have an MX record in DNS. In our local
> environment the resolver falls back to also check qa.php.net.kippdata.de
> which does have an MX record. Using "qa.php.net." instead of "qa.php.net"
> should fix this for everyone.

Author: nikic

NEWS

@@ -25,6 +25,7 @@ PHP                                                                        NEWS
 
 - Standard:
   . Fixed bug #79986 (str_ireplace bug with diacritics characters). (cmb)
+  . Fixed bug #80077 (getmxrr test bug). (Rainer Jung)
 
 03 Sep 2020, PHP 7.3.22
 

ext/standard/tests/network/getmxrr.phpt

@@ -11,9 +11,9 @@ if (substr(PHP_OS, 0, 3) == 'WIN') {
 --FILE--
 <?php
 $domains = array(
-    'mx1.tests.php.net',
-    'mx2.tests.php.net',
-    'qa.php.net',
+    'mx1.tests.php.net.',
+    'mx2.tests.php.net.',
+    'qa.php.net.',
 );
 foreach ($domains as $domain) {
     $result = getmxrr($domain, $hosts, $weights);