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Network Function Library: CHECKDNSRR

Source: Internet
Author: User
Keywords checkdnsrr php Chinese function manual network function library
Tags aliyun check checkdnsrr dns function function library host html
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Checkdnsrr

(PHP3, PHP4)

CHECKDNSRR---&http://www.aliyun.com/zixun/aggregation/37954.html ">nbsp; Checking DNS Records

Syntax: int CHECKDNSRR (string host [, String type])

Description:

Searches for a record of the DNS type type, returns True if a record is found, or returns False if no record is found or an error occurs.

The type can be any of a, MX, NS, SOA, PTR, CNAME, or any, and the default is MX.

The host can be an IP address or a host name.

Reference: GETMXRR () gethostbyaddr () gethostbyname () Gethostbynamel ()

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