note 79230 deleted from reserved.variables by felipe

Note Submitter: new to PHP, old hand at C 

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Here is an ever-so-slightly more efficient version of Dlyaza's code snippet to get an IP address.  I think this ought to work, and if so, it should produce the same results as her original snippet below.

<?php
    if ($IP = getenv('HTTP_CLIENT_IP')) {}
      elseif ($IP = getenv('HTTP_X_FORWARDED_FOR')) {}
      elseif ($IP = getenv('HTTP_X_FORWARDED')) {}
      elseif ($IP = getenv('HTTP_FORWARDED_FOR')) {}
      elseif ($IP = getenv('HTTP_FORWARDED')) {}
      else {
        $IP = $_SERVER['REMOTE_ADDR'];
    }
?>