Check if the parameter is heacking

// Make sure the request isn't escaping to another directory



if ((substr($file, 0, 1) == '.') || (strpos($file, '..') > 0) ||

    (substr($file, 0, 1) == '/') || (strpos($file, '/') > 0)) {



//header('Location: er.html?status=hack');

   echo("Hack attempt detected!");

  die();

}

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Check if the parameter is heacking