viebrock.ca

As of January 15, 2004, I’m no longer going to maintain the PEAR Net_Dig class. The original code was a bit of a hack anyway, simply running the system’s dig command, and parsing the results with regular expressions to come up with a useable PHP array.

The Net_DNS class is a much better alternative. It provides many more query options and, best of all, it’s being maintained. I encourage you all to switch.

If you need to port your applications from Net_Dig to Net_DNS, here is a quick primer on how it’s done. Let’s say your existing code looks like this:

The way to do this using Net_DNS is very similar. To get the same functionality, your code should now look like this:

The output from the Net_Dig and Net_DNS scripts are listed below. As you can see, the output from Net_DNS is slightly different, but all the same information is there.

To check if the query was successful and, if so, to output the IP address, here is the Net_Dig way:

And this is the Net_DNS way:

For more information on using Net_DNS, you can check out the homepage of the package maintainer at http://www.ypass.net/software/php/Net_DNS/.

Output from Net_Dig method

net_dig_result Object
(
	[status] => NOERROR
	[id] => 54398
	[flags] => qr rd ra
	[query_count] => 1
	[answer_count] => 1
	[authority_count] => 4
	[additional_count] => 4
	[dig_version] => 9.2.1
	[dig_server] => 66.207.199.35
	[dig_port] => 53
	[query] => Array
	(
		[0] => net_dig_resource Object
		(
			[host] => viebrock.ca.
			[ttl] => 
			[class] => IN
			[type] => A
			[data] => 
		)

	)

	[answer] => Array
	(
		[0] => net_dig_resource Object
		(
			[host] => viebrock.ca.
			[ttl] => 120
			[class] => IN
			[type] => A
			[data] => 209.61.155.107
		)

	)

	[authority] => Array
	(
		[0] => net_dig_resource Object
		(
			[host] => viebrock.ca.
			[ttl] => 120
			[class] => IN
			[type] => NS
			[data] => ns2.easydns.com.
		)

		[1] => net_dig_resource Object
		(
			[host] => viebrock.ca.
			[ttl] => 120
			[class] => IN
			[type] => NS
			[data] => remote1.easydns.com.
		)
		
		[2] => net_dig_resource Object
		(
			[host] => viebrock.ca.
			[ttl] => 120
			[class] => IN
			[type] => NS
			[data] => remote2.easydns.com.
		)
		
		[3] => net_dig_resource Object
		(
			[host] => viebrock.ca.
			[ttl] => 120
			[class] => IN
			[type] => NS
			[data] => ns1.easydns.com.
		)

	)

	[additional] => Array
	(
		[0] => net_dig_resource Object
		(
			[host] => ns1.easydns.com.
			[ttl] => 3604
			[class] => IN
			[type] => A
			[data] => 216.220.40.243
		)

		[1] => net_dig_resource Object
		(
			[host] => ns2.easydns.com.
			[ttl] => 166281
			[class] => IN
			[type] => A
			[data] => 205.210.42.20
		)
		
		[2] => net_dig_resource Object
		(
			[host] => remote1.easydns.com.
			[ttl] => 82955
			[class] => IN
			[type] => A
			[data] => 64.39.29.212
		)
		
		[3] => net_dig_resource Object
		(
			[host] => remote2.easydns.com.
			[ttl] => 95573
			[class] => IN
			[type] => A
			[data] => 212.100.224.80
		)
		
	)
		
	[consistency_check] => 1
	[query_time] => 117 msec
)

Output from Net_DNS method

net_dns_packet Object
(
	[debug] => 0
	[header] => net_dns_header Object
	(
		[id] => 22447
		[qr] => 1
		[opcode] => QUERY
		[aa] => 0
		[tc] => 0
		[rd] => 1
		[ra] => 1
		[rcode] => NOERROR
		[qdcount] => 1
		[ancount] => 1
		[nscount] => 4
		[arcount] => 4
	)
	
	[compnames] => Array
	(
	)
	
	[answerfrom] => 66.207.199.35
	[answersize] => 200
	[question] => Array
	(
		[0] => net_dns_question Object
		(
			[qname] => viebrock.ca
			[qtype] => A
			[qclass] => IN
		)
	
	)
	
	[answer] => Array
	(
		[0] => net_dns_rr_a Object
		(
			[name] => viebrock.ca
			[type] => A
			[class] => IN
			[ttl] => 120
			[rdlength] => 4
			[rdata] => <i>binary data</i>
			[address] => 209.61.155.107
		)
	
	)
	
	[authority] => Array
	(
		[0] => net_dns_rr_ns Object
		(
			[name] => viebrock.ca
			[type] => NS
			[class] => IN
			[ttl] => 120
			[rdlength] => 17
			[rdata] => <i>binary data</i>
			[nsdname] => ns1.easydns.com
		)
		
		[1] => net_dns_rr_ns Object
		(
			[name] => viebrock.ca
			[type] => NS
			[class] => IN
			[ttl] => 120
			[rdlength] => 6
			[rdata] => <i>binary data</i>
			[nsdname] => ns2.easydns.com
		)
		
		[2] => net_dns_rr_ns Object
		(
			[name] => viebrock.ca
			[type] => NS
			[class] => IN
			[ttl] => 120
			[rdlength] => 10
			[rdata] => <i>binary data</i>
			[nsdname] => remote1.easydns.com
		)
		
		[3] => net_dns_rr_ns Object
		(
			[name] => viebrock.ca
			[type] => NS
			[class] => IN
			[ttl] => 120
			[rdlength] => 10
			[rdata] => <i>binary data</i>
			[nsdname] => remote2.easydns.com
		)
	
	)
	
	[additional] => Array
	(
		[0] => net_dns_rr_a Object
		(
			[name] => ns1.easydns.com
			[type] => A
			[class] => IN
			[ttl] => 3604
			[rdlength] => 4
			[rdata] => <i>binary data</i>
			[address] => 216.220.40.243
		)
		
		[1] => net_dns_rr_a Object
		(
			[name] => ns2.easydns.com
			[type] => A
			[class] => IN
			[ttl] => 166281
			[rdlength] => 4
			[rdata] => <i>binary data</i>
			[address] => 205.210.42.20
		)
		
		[2] => net_dns_rr_a Object
		(
			[name] => remote1.easydns.com
			[type] => A
			[class] => IN
			[ttl] => 82955
			[rdlength] => 4
			[rdata] => <i>binary data</i>
			[address] => 64.39.29.212
		)
		
		[3] => net_dns_rr_a Object
		(
			[name] => remote2.easydns.com
			[type] => A
			[class] => IN
			[ttl] => 95573
			[rdlength] => 4
			[rdata] => <i>binary data</i>
			[address] => 212.100.224.80
		)

	)

)