matching for port number in config file

[ted_chou12]

Hi, this is the config file:

server.document-root = "/usb/sda1/http"
[color=teal]server.port = 3001[/color]
mimetype.assign = (
  ".html" => "text/html",
  ".txt" => "text/plain",
  ".jpg" => "image/jpeg",
  ".png" => "image/png"
)
dir-listing.encoding = "utf-8"
dir-listing.activate = "enable"
server.modules = (
            "mod_access",
            "mod_accesslog",
            "mod_fastcgi",
            "mod_rewrite",
            "mod_auth",
            "mod_alias",
            "mod_compress",
)

index-file.names           = ( "index.php", "index.html",
                               "index.htm", "default.htm",
                               "index.lighttpd.html" )

fastcgi.map-extensions = ( ".php3" => ".php", ".php4" => ".php" )

server.errorlog = "/var/lighttpd.log"

static-file.exclude-extensions = ( ".php", ".pl", ".fcgi" )

fastcgi.server = ( ".php" => ((
                     "bin-path" => "/usb/sda1/php5-cgi/usr/bin/php5-cgi",
                     "socket" => "/usb/sda1/php5-cgi/php.socket"
                 )))

I want to match it with this code

<?php 
$file = file_get_contents("test.txt");
preg_match("/^server/\./port\s=\s/", "$file", $matches);
echo "|$matches[0]|";
?>

But the returned string is empty? In fact, I am not sure why it only matches up to the dot inbetween the server and the port?

Thanks,

Ted

[salathe]

Your regex /^server/\./port\s=\s/ is broken, please turn on displaying of errors (ini_set('display_errors', true)) and allow all errors to be reported (error_reporting(-1)) and you will see that PHP tells you that the regex is broken with the message Warning:  preg_match() [function.preg-match]: Unknown modifier '\' in ….

 

I have absolutely no idea why you have the forward slashes around the dot part of the regex, but they are not needed so remove them: /^server\.port\s=\s/

 

Secondly, you want to match the port number but nowhere in the regex is looking for any sort of number at all! Specify that a) you want to find a port number, and b) that you want to capture it separately for use later. /^server\.port\s=\s(\d+)/

 

Thirdly, you ask to match only at the start of the subject string (with ^) where instead you want to match at the start of a line. To allow the caret (^) to match the start of a line, you need to set the "multiline" pattern modifier (docs): /^server\.port\s=\s(\d+)/m

 

With the amended regex, you will now be able to use $matches[1] to get the port number.

[ted_chou12]

Thank you! I see, I am still struggling with regex syntax :/. Thanks!

Ted