reg expr help needed

[Blade]

Could somebody help me with this? I have no idea why it doesnt work, I didnt code it.. and I dont know much about regular expressions. As I can tell, its supposed to grab all the occurences of "...mail is handled..." and put them into this array. But the array is empty.

---

$dns = "Using domain server:
Name: ns.test.dk
Addresses: 192.168.0.1

domain.dk mail is handled (pri=10) by mail.server.com";

preg_match_all("/domain.dk(.){0,1} mail is handled by ([0-9]{1,3}) ([^{\n$]+)(\n|$)/",$dns,$regs);}

[eoghain]

Let me see if I have this right, you are trying to match this:

$dns = "Using domain server: Name: ns.test.dk Addresses: 192.168.0.1 domain.dk mail is handled (pri=10) by mail.server.com";

With this regex:

preg_match_all("/domain.dk(\.){0,1} mail is handled by ([0-9]{1,3}) ([^\n$]+)(\n|$)/",$dns,$regs);

If that is the case, then you will never make the match because your regex wants to see "mail is handled by" and your example has "mail is handled (pri=10) by". These two lines are not the same thing.

[Blade]

Thanks for the reply..

You wouldnt happen to have a solution for me then?

I think I made a mistake, it seems that the data it processes is different than what I thought.

It gets it data from this:
/usr/bin/host -tmx $domain

example:
/usr/bin/host -tmx cnn.com
gives:

cnn.com mail is handled (pri=10) by atlmail1.turner.com
cnn.com mail is handled (pri=10) by atlmail4.turner.com
cnn.com mail is handled (pri=20) by atlmail2.turner.com
cnn.com mail is handled (pri=30) by nymail1.turner.com

[Shrike]

<?php
$dns = <<<DNS
domain.dk mail is handled (pri=10) by mail.server.dk
domain.uk mail is handled (pri=20) by mail.server.co.uk
domain.com mail is handled (pri=30) by mail.server.com
DNS;
preg_match_all("/[\\w|\\.|\\d]+ mail is handled \\(pri=\\d{2}\\) by [\\w|\\.|\\d]+/",$dns,$regs);
print_r($regs);
?>

Just mocked up the text to show multiple matches 🙂

Oh by the way, the character classes probably don't cover the whole range of characters available to domain names, might need amending.

[Blade]

thanks.

it turned out that all I needed was to change it from

preg_match_all("/domain.dk(.){0,1} mail is handled by ([0-9]{1,3}) ([^{\n$]+)(\n|$)/",$dns,$regs);}

to

preg_match_all("/domain.dk(.){0,1} mail is handled (pri=([0-9]{1,3})) by ([^{\n$]+)(\n|$)/",$dns,$regs);}

You pointed me in the right direction, so thank you for that 🙂

[Shrike]

That will only ever match domain.dk, so if all the domains are called that then you have no problem 🙂