Simple test for DNS CAA-records in PHP. CLI/Browser cross-compatible.

README.md

Simple test for DNS CAA-records in PHP. CLI/Browser cross-compatible.

Requirements:

• PHP 7.0.16 (basically works, but broken)
• PHP 7.1.15 or 7.2.3 (works completely)

Use:

php caa-test.php posteo.de or php -S localhost:8080 and http://localhost:8080/caa-test.php?input=posteo.de afterwards.

caa-test.php

<?php

if (php_sapi_name() == 'cli') {
  $host = $argv['1'];
}

elseif (php_sapi_name() !== 'cli') {
  echo '<pre>';
  $host = $_GET['input'];
}

$records = dns_get_record($host, DNS_CAA);

foreach ($records as $record) {
  echo $record['host'];
  echo " ";
  echo $record['type'];
  echo " ";
  echo $record['flags'];
  echo " ";
  echo $record['tag'];
  echo " ";
  echo $record['value'];
  echo "\n";
}

//var_dump($records); // Uncomment for complete output as array. Use to debug.

?>