使用正则表达式PHP解析日志文件

Question

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?

Answer 1

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 ) )