function getBollingerBands3($company, $from = "1900-01-01 00:00:00", $to = null, $dataorg = "json", $enSignals = false, $host, $db, $user, $pass)
{
$studyPeriod = 20;
$offsetPeriod = $studyPeriod * 1;
//from date has to be adjusted for the bollinger bands
$date = date_create($from);
date_add($date, date_interval_create_from_date_string("-{$offsetPeriod} days"));
$fromAdjusted = date_format($date, "Y-m-d");
//echo "fromAdjusted: $fromAdjusted<Br>";
$dataOhlc = [];
//OHLC data format [timestamp,open,high,low,close,volume]
if ($dataorg == "highchart") {
$dataOhlc = getOHLC($company, $fromAdjusted, $to, "array2", $host, $db, $user, $pass);
} else {
$dataOhlc = getOHLC($company, $fromAdjusted, $to, "array", $host, $db, $user, $pass);
}
//Return if $dataOhlc is null
if ($dataOhlc == [] || $dataOhlc == 0) {
return 0;
}
//Input for bollinger bands should be [timestamp,open,high,low,close]
$ctr = 0;
foreach ((array) $dataOhlc as $ohlc) {
$dbreturn[$ctr][0] = $ohlc[0];
//timestamp
$dbreturn[$ctr][1] = $ohlc[1];
//high
$dbreturn[$ctr][2] = $ohlc[2];
//low
$dbreturn[$ctr][3] = $ohlc[3];
//low
$dbreturn[$ctr++][4] = $ohlc[4];
//close
}
if ($dataorg == "json") {
$bbohlc = codesword_bollinger_bands3($dbreturn, $studyPeriod);
if (count($bbohlc) <= 1) {
//No Data
return 0;
}
$returnBB = $bbohlc;
} elseif ($dataorg == "highchart") {
$returnBB = codesword_bollinger_bands3($dbreturn, $studyPeriod);
if ($returnBB == 0) {
//No Data
return 0;
}
} elseif ($dataorg == "array") {
//TODO: create code for organizing an array data output
} else {
//json
$returnBB = codesword_bollinger_bands3($dbreturn, $studyPeriod);
if ($returnBB == 0) {
//No Data
return 0;
}
}
$allData = [];
if (strcasecmp($enSignals, "latest") == 0) {
//return only the latest signal
// [timestamp,trade signal,... other info...]
$lastSignal = codesword_bbTrendDetectorLatests($returnBB);
return $lastSignal;
} elseif ($enSignals) {
$allData[0] = $returnBB;
$allData[1] = codesword_bbTrendDetector($returnBB);
echo json_encode($allData);
} else {
$allData = $returnBB;
echo json_encode($allData);
}
}
function codesword_bbTrendDetectorLatests($input)
{
$bb3 = codesword_bbTrendDetector($input);
if ($bb3 == 0 || $bb3 == [] || $bb3 == null) {
//No Signals
return 0;
}
$latest = $bb3[count($bb3) - 1];
//return $bb3 latest;
return $latest;
}
