function load_trade_data($symb, $startDate, $endDate)
{
global $db_hostname, $db_database, $db_user, $db_password, $scramble_names;
global $timeStamps, $volData, $highData, $lowData, $openData, $closeData, $exch;
global $first_date, $last_date;
$first = true;
$timeStamps = array();
$highData = array();
$lowData = array();
$openData = array();
$closeData = array();
$volData = array();
try {
$pdo = new PDO("pgsql:host={$db_hostname};dbname={$db_database}", $db_user, $db_password);
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch (PDOException $e) {
die("ERROR: Cannot connect: " . $e->getMessage());
}
$query = "select date, high, low, open, close, volume from quotes where symb = '{$symb}' and exch = '{$exch}' and date >= '{$startDate}' and date <= '{$endDate}' order by date";
foreach ($pdo->query($query) as $row) {
$timeStamps[] = chartTime2(strtotime($row['date']));
if ($first) {
$first_date = $row['date'];
$first = false;
}
$last_date = $row['date'];
$highData[] = $row['high'];
$lowData[] = $row['low'];
$openData[] = $row['open'];
$closeData[] = $row['close'];
$volData[] = $row['volume'];
}
}
$first = true;
try {
$pdo = new PDO("pgsql:host={$db_hostname};dbname={$db_database}", $db_user, $db_password);
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} catch (PDOException $e) {
die("ERROR: Cannot connect: " . $e->getMessage());
}
$query = "select a.date as date, ema_12, ema_26, open, high, low, close from quotes a, moving_averages b where a.date = b.date and a.symb = b.symb and a.exch = b.exch and a.date >= '{$first_date}' and a.date <= '{$pf_working_date}' and a.symb = '{$symb}' and a.exch = '{$pf_exch}' order by a.date limit {$chart_period};";
foreach ($pdo->query($query) as $row) {
$open[] = $row['open'];
$close[] = $row['close'];
$high[] = $row['high'];
$low[] = $row['low'];
$ema_12[] = $row['ema_12'];
$ema_26[] = $row['ema_26'];
$dates[] = chartTime2(strtotime($row['date']));
if ($first) {
// save the first found date for the chart title
$first_date = $row['date'];
$first = false;
}
}
// Set the plotarea at (50, 30) and of size 240 x 140 pixels. Use white (0xffffff)
// background.
$plotAreaObj = $c->setPlotArea(50, 45, 410, 400, 0xffffff, 0xffffff, 0xc0c0c0, 0xc0c0c0, 0xc0c0c0);
// Add a legend box at (50, 185) (below of plot area) using horizontal layout. Use 8
// pts Arial font with Transparent background.
$legendObj = $c->addLegend(50, 455, false, "", 8);
$legendObj->setBackground(Transparent);
// Add a title box to the chart using 8 pts Arial Bold font, with yellow (0xffff40)
// background and a black border (0x0)
function chartTime($y, $m = Null, $d = 1, $h = 0, $n = 0, $s = 0)
{
if (is_null($m)) {
return chartTime2($y);
} else {
return callmethod("chartTime", $y, $m, $d, $h, $n, $s);
}
}