PHP Reference

Quick Reference

The PHP dns_check_record() function is an alias of the checkdnsrr() function.

<?php
$domain = '1smartchicken.com';

if(dns_check_record($domain, 'MX')) {
    echo 'Passed';
}
else {
    echo 'Failed';
}
?>

Syntax

dns_check_record(host, type)

Parameters

ParameterDescription
hostSpecifies an IP address or host name to check (required)
typeSpecifies the type:

  • A

  • MX (default)

  • NS

  • SOA

  • PTR

  • CNAME

  • AAAA

  • A6

  • SRV

  • NAPTR

  • TXT

  • ANY


PHP Notes:

  • When using PHP, single or double quotation marks are acceptable and work identically to one another; choose whichever you prefer, and stay consistent
  • Arrays count starting from zero NOT one; so item 1 is position [0], item 2 is position [1], and item 3 is position [2] … and so on

We’d like to acknowledge that we learned a great deal of our coding from W3Schools and TutorialsPoint, borrowing heavily from their teaching process and excellent code examples. We highly recommend both sites to deepen your experience, and further your coding journey. We’re just hitting the basics here at 1SMARTchicken.