PHP DNS 记录

Question

当我在 php 脚本中使用 dns_get_record 来获取域的 DNS 记录列表时，会返回记录列表。

但是，如果我再次运行脚本，它不会返回所有相同的结果（即它只返回名称服务器），然后如果我再次运行它，它会工作等等。

这是我正在使用的代码：

$result = dns_get_record("php.net");
print_r($result);

是否有更好的函数使用或更可靠的方式查询 DNS 记录？

不工作：

数组 ( [0] => 数组 ( [host] => php.net [type] => NS [target] => remote2.easydns.com [class] => IN [ttl] => 38772 ) [1] => 数组 ( [主机] => php.net [类型] => NS [目标] => ns1.easydns.com [类] => IN [ttl] => 38772 ) [2] => 数组 ( [主机] => php.net [类型] => NS [目标] => ns2.easydns.com [类] => IN [ttl] => 38772 ) [3] => 数组 ( [主机] => php.net [类型] => NS [目标] => remote1.easydns.com [类] => IN [ttl] => 38772 ) )

工作：

数组 ( [0] => 数组 ( [主机] => php.net [类型] => MX [pri] => 5 [目标] => osu1.php .net [class] => IN [ttl] => 72984 ) [1] => 数组 ( [host] => php.net [type] => MX [pri] => 15 [target] ] => smtp.osuosl.org [class] => IN [ttl] => ) [2] => 数组 ( [host] => php.net [type] => NS [target] ] => remote2.easydns.com [class] => IN [ttl] => ) [3] => 数组 ( [host] => php.net [type] => NS [target] ] => ns1.easydns.com [类] => IN [ttl] => 30054) [4] =>数组 ( [host] => php.net [type] => NS [target] => ns2.easydns.com [class] => IN [ttl] => 30054 ) [5] =>数组 ( [host] => php.net [type] => NS [target] => remote1.easydns.com [class] => IN [ttl] => 30054 ) )

Answer 1

将 DNS_ALL 添加到函数调用应该可以

$result = dns_get_record("php.net",DNS_ALL);
print_r($result);

确保您正在收集所有不同的记录。