[RESOLVED] regex help \d+ \D+

[DeathfireD]

Hello, Regex is somthing iv never been good with and never really understood on the php help pages. So im having a problem parsing some data thats within a xml page.

Heres a xml output of one of the pages.

<?xml version="1.0" ?> 
- <tsqp version="1.0">
  <serverinfo uptime="25689" ip="82.23.23.23" servername="Vailera" port="8071" location="Netherlands" url="" server="funstuffS" version="0.9.4d" /> 
  <owner name="AnieGo" email="" /> 
  <players online="35" max="250" peak="63" waiting="0" /> 
  <monsters total="2513" /> 
  <map name="" author="" width="" height="" /> 
  <motd>Welcome to our Server -I have make a new website for u want to look (goto) * www.google.com HAVE FUN!.</motd> 
  </tsqp>

and heres what im using to parse info from it.

<? 
//server packet that needs to be sent to get info
$info = chr(6).chr(0).chr(255).chr(255).'info';
//making socket connection to an ip and port 7171
$sock = @fsockopen('82.1.1.1', 7171, $errno, $errstr, 1); 

if ($sock) 
{ 
    //writes the info gotten by sending the server packet.
    fwrite($sock, $info);
    $data='';

while (!feof($sock)) 
{ 
    $data .= fgets($sock, 1024); 
} 
fclose($sock);

//players online and max (ex. Players online: 24 / 100) Works
preg_match('/players online="(\d+)" max="(\d+)"/', $data, $matches);
print 'Status: Online';    
print '<br>Players online: '.$matches[1].'  /  '.$matches[2];

//Owner Name and e-mail (ex. Owner Name: jasper E-mail: [e-mail])
preg_match('/owner name="(\D+)" email="(\D+)"/', $data, $matches); 
print '<br>Owner Name: '.$matches[1];  

//Monster total (ex. Monsters: 23456)Works
preg_match('/monsters total="(\d+)"/', $data, $matches);
print '<br>Monsters: '.$matches[1];

//Distro info (ex. Fun_CVS_5.0.1)
preg_match('/server="((?>\D+)|\d+)*[!?])" version="((?>\D+)|\d+)*[!?])"/', $data, $matches);
   print '<br>Distro: '.$matches[1].' '.$matches[2];

//Uptime (Uptime: 23h 12m) Works
preg_match('/uptime="(\d+)"/', $data, $matches); 
$h = floor($matches[1] / 3600); 
$m = floor(($matches[1] - $h*3600) / 60); 

print '<br>Uptime: '.$h.'h '.$m.'m'; 
} 
else 
{ 
    print 'Status: Offline'; 
} 
?>

So as you can see I got the numbers down fine (IE. (\d+)) but when it comes to getting chars or a mix of chars, digits and _ symboles Im lost. Looking at what I did I made a mess with crap that dosnt work like ((?>\D+)|\d+)*[!?]) So I need some help.

Can someone fill me in on how I would get the char and _ info using regex? Much thanks in advanced. Oh and also how would I get the info between the <motd> tags?

PS. I commented most of it just in case someone wants to know what the script is doing.

[Weedpacket]

\d is a digit, \D is anything that's not a digit. \w is a "wordlike" character and may be more like what you want. It includes digits, letters (which aren't the same thing as "characters"), and the underscore.

[DeathfireD]

ohhh ok so I should be using \w for the mix of letters and numbers? For example john13 ? So what if theres a _ in it? Say server_123 im guessing id have to use \D right? but then that would probably pick up other things in there that I dont want.

Anyway Ill try making some changes and see what I come up with. If you have more info on the questions I just ask please post back, thanks Weedpacket.

Oh WeedPacket, how do I get the text between the <motd></motd> tags?

[DeathfireD]

Ok Weedpacket this is where im at. I tryed using the \w+ and didnt work. Then I tryed just \w and still nothing. Then I commented out this part

    //Distro info (ex. Fun_CVS_5.0.1)
    preg_match('/server="(\w+)" version="(\w+)"/', $data, $matches);
    print '<br>Distro: '.$matches[1].' '.$matches[2];

and tryed but still nothing. So then I looked at the //Owner Name and e-mail (ex. Owner Name: jasper E-mail: [e-mail]) part and changed the \w+'s to \D+ and I noticed I got to see the name and e-mail but it also had the end of the xml entry on it also (IE. Owner Name: namehere E-mail: [e-mail] /> ) So then I went back and changed the e-mail regex to \w+ and that kinda stoped the owner name and e-mail from even displaying. So im confused and stuck. Can you help a bit more? I left an active address in the fsock connection so you can see for your self whats going on. Also still would like to grab whats between the <motd> tags. Im still trying to understand all the info they give on php.nets site but have no luck with regex 🙁

Current code:

<?
//server packet that needs to be sent to get info
$info = chr(6).chr(0).chr(255).chr(255).'info';
//making socket connection to an ip and port 7171
$sock = @fsockopen('www.guia3d.com', 7171, $errno, $errstr, 1);

if ($sock)
{
    //writes the info gotten by sending the server packet.
    fwrite($sock, $info);
    $data='';

while (!feof($sock))
{
    $data .= fgets($sock, 1024);
}
fclose($sock);

//players online and max (ex. Players online: 24 / 100) Works
preg_match('/players online="(\d+)" max="(\d+)"/', $data, $matches);
print 'Status: Online';
print '<br>Players online: '.$matches[1].'  /  '.$matches[2];

//Owner Name and e-mail (ex. Owner Name: jasper E-mail: [e-mail])
preg_match('/owner name="(\w+)" email="(\w+)"/', $data, $matches);
print '<br>Owner Name: '.$matches[1];
print '<br>E-mail: '.$matches[2];

//Monster total (ex. Monsters: 23456)Works
preg_match('/monsters total="(\d+)"/', $data, $matches);
print '<br>Monsters: '.$matches[1];

//Distro info (ex. Fun_CVS_5.0.1)
preg_match('/server="(\w+)" version="(\w+)"/', $data, $matches);
print '<br>Distro: '.$matches[1].' '.$matches[2];

//Uptime (Uptime: 23h 12m) Works
preg_match('/uptime="(\d+)"/', $data, $matches);
$h = floor($matches[1] / 3600);
$m = floor(($matches[1] - $h*3600) / 60);

print '<br>Uptime: '.$h.'h '.$m.'m';
}
else
{
    print 'Status: Offline';
}
?>

[Weedpacket]

You know, it would probably be easier if you used PHP's XML functions for parsing XML - seeing as that's what they're there for. But still....

You'll be in trouble if there is no email (as, for example, in your example code). + means at least one character. So email="" will fail to match. * means at least zero characters which is what you want.

One of the reasons why PHP's documentation on regular expression syntax is as densely-written as it is is because regular expressions are widely used and there are plenty of sites that go into them in any level of detail you want.

[DeathfireD]

ya Iv tryed a few but even reading through them all its hard for me to understand how to use them correctly. I didnt relize it would mess up the script if I use the at least one ( + ) option.

Anyway I tryed changing the + to * and still nothing displays for Owner and E-mail. The only way I can get anything to show is by using the \D+ option.

[epimeth]

for email you want /([\w.]+@[\w.]+)/
translated to english:
capture the following: anthing that is a 'word' character (don't remember if that includes the '' character) or a '.' (dot) or an '' (underscore) at least once, then an '@' (at) symbol, then again anything that is a 'word' character or a dot or an underscore at least once greedily...
so thats the idea... you put in brackets ([]) the sort of characters you are searching for... so [\w._] is any word character or a dot or an underscore. the + afterwards tells it to find it at least once for as long as it can. in the case of email we want it to stop at the @ symbol. then again the same as the begining.

[DeathfireD]

so your saying do this?

   preg_match('/owner name="(\w*)" email="/([\w\._]+@[\w\._]+)"/', $data, $matches);
    print '<br>Owner Name: '.$matches[1];
    print '<br>E-mail: '.$matches[2];

I tryed it and I got this error "Warning: preg_match() [function.preg-match]: Unknown modifier '(' in c:\folder\folder2\check.php on line 25 "

Edited: Well since that didnt work I took out the / at the start and replaced the owner code (\w) with \D+ and everything worked.

    preg_match('/owner name="(\D*)" email="([\w\._]+@[\w\._]*)"/', $data, $matches);
    print '<br>Owner Name: '.$matches[1];
    print '<br>E-mail: '.$matches[2];

The out put was this.

Status: Online
Players online: 73 / 800
Owner Name: UA-owner
E-mail: [e-mail]
Monsters: 5889
Distro:
Uptime: 15h 59m

PS. thanks for the help, I applyed what you showed me to the distro and thats working now too. Heres the full code so you can take a look over it and see if I messed anything up just in case.

<?
//server packet that needs to be sent to get info
$info = chr(6).chr(0).chr(255).chr(255).'info';
//making socket connection to an ip and port 7171
$sock = @fsockopen('www.guia3d.com', 7171, $errno, $errstr, 1);

if ($sock)
{
    //writes the info gotten by sending the server packet.
    fwrite($sock, $info);
    $data='';

while (!feof($sock))
{
    $data .= fgets($sock, 1024);
}
fclose($sock);

//players online and max (ex. Players online: 24 / 100) Works
preg_match('/players online="(\d+)" max="(\d+)"/', $data, $matches);
print 'Status: Online';
print '<br>Players online: '.$matches[1].'  /  '.$matches[2];

//Owner Name and e-mail (ex. Owner Name: jasper E-mail: [e-mail])
preg_match('/owner name="(\D*)" email="([\w\._]+@[\w\._]*)"/', $data, $matches);
print '<br>Owner Name: '.$matches[1];
print '<br>E-mail: '.$matches[2];

//Monster total (ex. Monsters: 23456)Works
preg_match('/monsters total="(\d+)"/', $data, $matches);
print '<br>Monsters: '.$matches[1];

//Distro info (ex. Fun_CVS_5.0.1)
preg_match('/server="([\w\._]*)" version="([\w\._]*)"/', $data, $matches);
print '<br>Distro: '.$matches[1].' '.$matches[2];

//Uptime (Uptime: 23h 12m) Works
preg_match('/uptime="(\d+)"/', $data, $matches);
$h = floor($matches[1] / 3600);
$m = floor(($matches[1] - $h*3600) / 60);

print '<br>Uptime: '.$h.'h '.$m.'m';
}
else
{
    print 'Status: Offline';
}
?>

All thats left is to get the contents of whats between the <motd> </motd> tags. Any ideas on that?

[Weedpacket]

DeathfireD wrote:

Any ideas on that?

Heh, that's the easy part 😉

#<motd>(.*?)</motd>#s

[DeathfireD]

mmmm easy for you, confusing for me. How do I apply that to a preg_match?

//MOTD
preg_match('#<motd>(.*?)</motd>#s)"/', $data, $matches);
print '<br>MOTD: '.$matches[1]; 

[Weedpacket]

You just answered your own question.

[DeathfireD]

then why dosnt it work 🙁

[bradgrafelman]

Remove the )"/ after the '#s' and before the ending quote and you should be fine.

[DeathfireD]

ahhh ic I tryed that last night out of guessing but I totaly forgot to take out the first / that I had in the code. (IE. preg_match('/#<motd>(.*?)</motd>#s', $data, $matches); )

So this works. Thanks so much guys. After doing this I have a better understanding on regex. I suppose I should take Weedpackets advice and lern how to use the PHP XML functions for parsing XML.

Working code:

 
    preg_match('#<motd>(.*?)</motd>#s', $data, $matches);

[bradgrafelman]

If it's working now, don't forget to mark the thread resolved.