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Get a visitor\'s real IP address.

/ Published in: PHP
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A more reliable way to obtain a visitor's IP address.

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  1. <?php
  2. function getRealIp()
  3. {
  4.  if (!empty($_SERVER['HTTP_CLIENT_IP'])){
  5.     $ip=$_SERVER['HTTP_CLIENT_IP'];
  6.  }
  7.  elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){
  8.    $ip=$_SERVER['HTTP_X_FORWARDED_FOR'];
  9.  }
  10.  else{
  11.    $ip=$_SERVER['REMOTE_ADDR'];
  12.  }
  13.  return $ip;
  14. }
  15.  
  16. ?>

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