removing text from a string

I have a file that looks like: 1. Some Text here 2. Another Line of Text 3. Yet another line of text 340. All the way to number 340 And I want to remove the Number, period, and blank space at the begining of each line. How can I accomplish this? Opening the file to modify it is easy, I'm just lost at how to remove the text.: <?php $filename = "results.txt"; $fp = fopen($filename, "r") or die ("Couldn't open $filename"); if ($fp) { while (!feof($fp))

       {
       $thedata = fgets($fp);
       //Do something to remove the "1. "
       //print the modified line and \n        }

fclose($fp); } ?>