3v4l.org

run code in 300+ PHP versions simultaneously
<?php $domain = 'gmail.com'; if (checkdnsrr($domain,"ANY")) { echo 'YES MX'; } else { echo 'NO MX'; } if (checkdnsrr($domain,"A")) { echo 'YES A'; } else { echo 'NO A'; }
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
NO MXNO A
preferences:
215.85 ms | 404 KiB | 229 Q