$this->csrf_cookie_name = $this->csrf_token_name;
$this->_csrf_set_hash();​
function _csrf_set_hash()
{
if ($this->csrf_hash == '')
{
if ( isset($_COOKIE[$this->csrf_cookie_name] ) AND
$_COOKIE[$this->csrf_cookie_name] != '' )
{
$this->csrf_hash = $_COOKIE[$this->csrf_cookie_name];
} else {
$this->csrf_hash = md5(uniqid(rand(), TRUE));
}
}
return $this->csrf_hash;
}​