I'm absolutely terrible at regex; can anyone help me solve the expression I need in order to separate two values I need from a log file?
Log file example.
1/28/2013 8:43:22 PM Removed {178.76.234.41}
1/28/2013 8:43:22 PM Removed {78.105.26.0}
1/28/2013 8:43:22 PM Removed {24.165.198.12}
1/28/2013 8:43:23 PM Added {178.76.234.41}
1/28/2013 8:43:23 PM Added {69.246.227.43}
With my current code I am able to separate the IP address, however I now need both the state (added/removed) and the IP address. Here is my current code.
preg_match_all("/.*{(.*)}.*/", $a, $b);
What do I need to replace "/. {(. )}.*/" with in order to grab both the state and the IP address to store into the array?
You don't actually need a regular expression to match this. You can split it on whitespace using preg_split()
and \\s+
as your delimiter, and then strip off the braces {}
from the IP address with a simple function like trim()
.
$output = array();
// While reading line by line...
$parts = preg_split('/\s+/', $line);
$output[] = array(
'state' => $parts[3],
'ip' => trim($parts[4], '{}')
);
If those are the only two words you need to include, have you tried something like this?
preg_match_all("~(Removed|Added)\s+{(.*)}~i", $a, $b);
So in total:
$a = '1/28/2013 8:43:22 PM Removed {178.76.234.41}
1/28/2013 8:43:22 PM Removed {78.105.26.0}
1/28/2013 8:43:22 PM Removed {24.165.198.12}
1/28/2013 8:43:23 PM Added {178.76.234.41}
1/28/2013 8:43:23 PM Added {69.246.227.43}';
preg_match_all("~(Removed|Added)\s+{(.*)}~i", $a, $b);
print_r($b);
And resulting in this:
Array ( [0] => Array ( [0] => Removed {178.76.234.41} [1] => Removed {78.105.26.0} [2] => Removed {24.165.198.12} [3] => Added {178.76.234.41} [4] => Added {69.246.227.43} ) [1] => Array ( [0] => Removed [1] => Removed [2] => Removed [3] => Added [4] => Added ) [2] => Array ( [0] => 178.76.234.41 [1] => 78.105.26.0 [2] => 24.165.198.12 [3] => 178.76.234.41 [4] => 69.246.227.43 ) )
I think this works for you;
$s = '1/28/2013 8:43:22 PM Removed {178.76.234.41}
1/28/2013 8:43:22 PM Removed {78.105.26.0}
1/28/2013 8:43:22 PM Removed {24.165.198.12}
1/28/2013 8:43:23 PM Added {178.76.234.41}
1/28/2013 8:43:23 PM Added {69.246.227.43}';
preg_match_all('~(?P<TIME>.*PM)\s+(?P<STATE>Added|Removed)\s+{(?P<IP>.*)}~i', $s, $m, PREG_SET_ORDER);
print_r($m);
// or
foreach ($m as $log) {
printf("Time: %s, State: %s, Ip: %s\n", $log['TIME'], $log['STATE'], $log['IP']);
// Time: 1/28/2013 8:43:22 PM, State: Removed, Ip: 178.76.234.41 ...
}
Out;
Array ( [0] => Array ( [0] => 1/28/2013 8:43:22 PM Removed {178.76.234.41} [TIME] => 1/28/2013 8:43:22 PM [1] => 1/28/2013 8:43:22 PM [STATE] => Removed [2] => Removed [IP] => 178.76.234.41 [3] => 178.76.234.41 ) [1] => Array ( [0] => 1/28/2013 8:43:22 PM Removed {78.105.26.0} [TIME] => 1/28/2013 8:43:22 PM [1] => 1/28/2013 8:43:22 PM [STATE] => Removed [2] => Removed [IP] => 78.105.26.0 [3] => 78.105.26.0 ) ...
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