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YahooFinance.php
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<?php
define('BASE_URL_', 'http://download.finance.yahoo.com/d/quotes.csv?s=');
define('HISTORICAL_URL_', 'http://ichart.yahoo.com/table.csv?s=');
define('STATIC_END_', '&e=.csv');
define('STATIC_HISTORICAL_', '&ignore=.csv');
class YahooFinance {
/**
* This function will retrieve the specific data for the specified stock ticker.
* The array is keyed as such: $array['TICKER'] = PRICE;
* array['filesize'] returns the size of the file(s) retrieved
* @param $options the data to retrieve
* @param stock the stock's ticker
* @brief retrieves data for a stock
*/
/*
After Hours Change (Realtime) c8
Annualized Gain g3
Ask a0
Ask (Realtime) b2
Ask Size a5
Average Daily Volume a2
Bid b0
Bid (Realtime) b3
Bid Size b6
Book Value Per Share b4
Change c1
Change Change In Percent c0
Change From Fiftyday Moving Average m7
Change From Two Hundreddsay Moving Average m5
Change From Year High k4
Change From Year Low j5
Change In Percent p2
Change In Percent (Realtime) k2
Change (Realtime) c6
Commission c3
Currency c4
Days High h0
Days Low g0
Days Range m0
Days Range (Realtime) m2
Days Value Change w1
Days Value Change (Realtime) w4
Dividend Pay Date r1
Trailing Annual Dividend Yield d0
Trailing Annual Dividend Yield In Percent y0
Diluted E P S e0
E B I T D A j4
E P S Estimate Current Year e7
E P S Estimate Next Quarter e9
E P S Estimate Next Year e8
Ex Dividend Date q0
Fiftyday Moving Average m3
Shares Float f6
High Limit l2
Holdings Gain g4
Holdings Gain Percent g1
Holdings Gain Percent (Realtime) g5
Holdings Gain (Realtime) g6
Holdings Value v1
Holdings Value (Realtime) v7
Last Trade Date d1
Last Trade Price Only l1
Last Trade (Realtime) With Time k1
Last Trade Size k3
Last Trade Time t1
Last Trade With Time l0
Low Limit l3
Market Capitalization j1
Market Cap (Realtime) j3
More Info i0
Name n0
Notes n4
Oneyr Target Price t8
Open o0
Order Book (Realtime) i5
P E G Ratio r5
P E Ratio r0
P E Ratio (Realtime) r2
Percent Change From Fiftyday Moving Average m8
Percent Change From Two Hundredday Moving Average m6
Change In Percent From Year High k5
Percent Change From Year Low j6
Previous Close p0
Price Book p6
Price E P S Estimate Current Year r6
Price E P S Estimate Next Year r7
Price Paid p1
Price Sales p5
Revenue s6
Shares Owned s1
Shares Outstanding j2
Short Ratio s7
Stock Exchange x0
Symbol s0
Ticker Trend t7
Trade Date d2
Trade Links t6
Trade Links Additional f0
Two Hundredday Moving Average m4
Volume v0
Year High k0
Year Low j0
Year Range w0
*/
static function retrieveCurrentPrice($stock) {
$url = BASE_URL_;
if (is_array($stock)) {
$stockquery = implode(',', $stock);
for ($i = count($stock) - 1; $i != -1; $i--) {
$stocklist[] = 0;
}
$stockarray = array_combine($stock, $stocklist);
$url = $url.$stockquery.'&f=l1'.STATIC_END_;
} else {
// die('YAHOO FINANCE RETRIEVECURRENTPRICE IS NOT EQUIPPED TO HANDLE NONARRAY PARAMETER');
$url = BASE_URL_.$stock.'&f=l1'.STATIC_END_;
}
if(!$file=fopen($url,'r'))
die('ERROR RETRIEVING STOCK PRICE URL '.$url);
//echo 'File size (line 125): '.sizeof($file);
//if(!is_array($stock))
// return fread($file,sizeof($file));
$i = 0;
$stockarray['filesize'] = 0;
while($line = fgets($file)) {
if(!is_array($stock)) {
$stockarray[$stock]=trim($line);
} else {
$stockarray[$stock[$i]]=trim($line);
}
$i++;
$stockarray['filesize'] += strlen($line);
}
return $stockarray;
}
/**
* This function will retrieve the historical prices in a certain time period by a specified interval.
* @param $stock stock ticker
* @param $fromdate start date [format:YYYYMMDD]
* @param $todate end date [format:YYYYMMDD]
* @param $type interval to get data from ['daily','weekly','monthly']
Return format:
array[0] = most recent entry (
array[0]['line'] = useless parsed line (string)
array[0]['date'] = date (date)
array[0]['open'] = opening price (float)
array[0]['high'] = day high price (float_
array[0]['low'] = day low price (float)
array[0]['close'] = closing price (float)
array[0]['volume'] = volume (int)
array[0]['adj'] = adj close (float)
*
* array['filesize'] = file retrieved size
)
*/
static function retrieveHistorical($stock, $fromdate, $todate, $type) {
if (!preg_match("/\d{8}/", $fromdate) || !preg_match("/\d{8}/", $todate))
return false;
$month = $fromdate[4] . $fromdate[5];
$day = $fromdate[6] . $fromdate[7];
$year = $fromdate[0] . $fromdate[1] . $fromdate[2] . $fromdate[3];
if ($day < 1 || $day > 30)
return false;
if ($month < 1 || $month > 12)
return false;
if (($year . '-' . $month . '-' . $day) < '1-1-1975')
return false;
$month = $month - 1;
$url = HISTORICAL_URL_ . $stock . '&a=' . $month . '&b=' . $fromdate[6] . $fromdate[7] . '&c=' . $fromdate[0] . $fromdate[1] . $fromdate[2] . $fromdate[3];
$month = $todate[4] . $todate[5];
$day = $todate[6] . $todate[7];
$year = $todate[0] . $todate[1] . $todate[2] . $todate[3];
if ($day < 1 || $day > 30)
return false;
if ($month < 1 || $month > 12)
return false;
if (($year . '-' . $month . '-' . $day) > date('Y-m-d')) {
return false;
}
$month = $month - 1;
$url = $url . '&d=' . $month . '&e=' . $todate[6] . $todate[7] . '&f=' . $todate[0] . $todate[1] . $todate[2] . $todate[3];
switch ($type) {
case('daily'):
$url = $url . '&g=d';
break;
case('monthly'):
$url = $url . '&g=m';
break;
case('yearly'):
$url = $url . '&g=y';
break;
default:
return false;
}
$url = $url . STATIC_HISTORICAL_;
$handle = fopen($url, "r");
$arr['filesize'] = sizeof($handle);
$keys = array('line', 'date', 'open', 'high', 'low', 'close', 'volume', 'adj');
//new keys
$arr = array();
$buffer = fgets($handle, 5120);
if ($buffer == "")
return false;
//parse each line and place into array $one
while (($buffer = fgets($handle, 5120)) !== false) {
if (!preg_match('/([0-9\-]{10})[\,]{1}([0-9\.]+)[\,]{1}([0-9\.]+)[\,]{1}([0-9\.]+)[\,]{1}([0-9\.]+)[\,]{1}([0-9\.]+)[\,]{1}([0-9\.]+)\s?/', $buffer, $one))
return false;
$one = array_combine($keys, array_values($one)); //rekeying
$arr[] = $one;
}
if (!feof($handle)) {
echo "Error: unexpected fgets() fail\n";
return false;
}
fclose($handle);
return $arr;
}
static function retrieveEarningsDate($ticker) {
$url = 'http://finance.yahoo.com/q?s='.$ticker;
$file = fopen($url,'r');
$string = stream_get_contents($file);
fclose($file);
$index = strpos($string,'Next Earnings Date:</th><td class=');
$line = substr($string,$index+52,20);
//echo $line;
if(preg_match('/(\d+-\w+-\d+)/',$line,$matches) == false) {
//echo "!regexerror!";
//echo $line;
return 'N/A';
return false;
}
return $matches[1];
}
public static function toAbbrev($str) {
switch($str) {
case 'AfterHoursChange':
return 'c8';
case 'AnnualizedGain':
return 'g3';
case 'Ask':
return 'b2';
case 'Size':
return 'a5';
case 'AverageDailyVolume':
return 'a2';
case 'Bid':
return 'b3';
case 'BidSize':
return 'b6';
case 'BookValuePerShare':
return 'b4';
case 'Change':
return 'c1';
case 'ChangeInPercent':
return 'c0';
case 'ChangeFromFiftyDayMovingAverage':
return 'm7';
case 'ChangeFromTwoHundredDayMovingAverage':
return 'm5';
case 'ChangeFromYearHigh':
return 'k4';
case 'ChangeFromYearLow':
return 'j5';
case 'ChangeInPercent':
return 'k2';
case 'Change':
return 'c6';
case 'Commission':
return'c3';
case 'Currency':
return 'c4';
case 'DayHigh':
return 'h0';
case 'DayLow':
return 'g0';
case 'DayRange':
return'm2';
case 'DayValueChange':
return 'w4';
case 'DividendPayDate':
return 'r1';
case 'TrailingAnnualDividendYield':
return'd0';
case 'TrailingAnnualDividendInPercent':
return'y0';
case 'DilutedEPS':
return'e0';
case 'EBITDA':
return'j4';
case 'EPSEstimatedCurrentYear':
return 'e7';
case 'EPSEstimateNextQuarter':
return 'e9';
case 'EPSEstimateNextYear':
return'e8';
case 'ExDividendDate':
return'q0';
case 'FiftyDayMovingAverage':
return'm3';
case 'SharesFloat':
return'f6';
case 'HighLimit':
return'l2';
case 'HoldingsGainPercent':
return 'g5';
case 'HoldingsGain':
return 'g6';
case 'HoldingsValue':
return 'v7';
case 'LastTradeDate':
return 'd1';
case 'LastTradePriceOnly':
return 'l1';
case 'LastTradeWithTime':
return 'k1';
case 'LastTradeSize':
return 'k3';
case 'LastTradeTime':
return 't1';
case 'LastTradeWithTime':
return 'l0';
case 'LowLimit':
return 'l3';
case 'MarketCap':
return 'j3';
case 'MoreInfo':
return 'i0';
case 'Name':
return 'n0';
case 'Notes':
return 'n4';
case 'OneYearTargetPrice':
return 't8';
case 'Open':
return 'o0';
case 'OrderBook':
return 'i5';
case 'PEGRatio':
return 'r5';
case 'PERatio':
return 'r2';
case 'PercentChangeFromFiftydayMoving':
return 'm8';
case 'PercentChangeFromTwoHundreddayMoving':
return 'm6';
case 'ChangeInPercentFromYear':
return 'k5';
case 'PercentChangeFromYear':
return 'j6';
case 'PreviousClose':
return 'p0';
case 'Price':
return 'p6';
case 'PriceEPSEstimateCurrent':
return 'r6';
case 'PriceEPSEstimateNext':
return 'r7';
case 'PricePaid':
return 'p1';
case 'PriceSales':
return 'p5';
case 'Revenue':
return 's6';
case 'SharesOwned':
return 's1';
case 'Shares':
return 'j2';
case 'ShortRatio':
return 's7';
case 'StockExchange':
return 'x0';
case 'Symbol':
return 's0';
case 'TickerTrend':
return 't7';
case 'TradeDate':
return 'd2';
case 'TradeLinks':
return 't6';
case 'TradeLinksAdditional':
return 'f0';
case 'TwoHundredDayMovingAverage':
return 'm4';
case 'Volume':
return 'v0';
case 'YearHigh':
return 'k0';
case 'YearLow':
return 'j0';
case 'YearRange':
return 'w0';
default:
return false;
}
}
}
?>