function update_daily_portfolio_performance($portfolioID)
{
    global $portfolioID;
    global $original_investment;
    global $today_date;
    $value = get_realtime_turtle_portfolio_value($portfolioID);
    $preturn = ($value - $original_investment) / $original_investment * 100;
    $dollar_return = $value - $original_investment;
    $query2 = "insert into turtle_portfolio_performance values (" . $portfolioID . ", '" . $today_date . "', " . $dollar_return . ", " . $preturn . ")";
    $result2 = queryMysql($query2);
    //	$newDateStr = strtotime($trade_date);
    //	$newDateStr = $newDateStr * 1000 - 14400000;
}
function update_daily_portfolio_performance($portfolioID)
{
    global $portfolioID;
    global $original_investment;
    global $today_date;
    $init_setting = array();
    $init_setting = get_portfolio_initial_setting($portfolioID);
    $value = get_realtime_turtle_portfolio_value($portfolioID);
    //$preturn = ($value - $original_investment) / $original_investment * 100;
    $preturn = ($value - $init_setting[0]['initial_investment']) / $init_setting[0]['initial_investment'] * 100;
    //$dollar_return = $value - $original_investment;
    $dollar_return = $value - $init_setting[0]['initial_investment'];
    $yesterday_pvalue = get_yeseterday_portfolio_value($portfolioID);
    $today_return = $value - $yesterday_pvalue;
    $today_return_pct = $today_return / $yesterday_pvalue * 100;
    $query2 = "insert into turtle_portfolio_performance values (" . $portfolioID . ", '" . $today_date . "', " . $dollar_return . ", " . $preturn . ", " . $value . ", " . $today_return . ", " . $today_return_pct . " )";
    $result2 = queryMysql($query2);
    //	$newDateStr = strtotime($trade_date);
    //	$newDateStr = $newDateStr * 1000 - 14400000;
}