[Code] PHP Arbitrage Calculator for BTC-e

wdnj

hero member

Activity: 762

Merit: 500

Is there any update?

OdinHephaestus

member

Activity: 70

Merit: 10

Quote from: theblazehen on May 03, 2013, 03:12:35 AM

I'm getting divide by zero errors...

http://supernova.allalla.com/public_html/index.php

do you have php curl installed on your machine?

theblazehen

full member

Activity: 194

Merit: 100

I'm getting divide by zero errors...

http://supernova.allalla.com/public_html/index.php

Terk

hero member

Activity: 616

Merit: 522

There is some kind of type hinting in function arguments declaration since PHP 5.1, so... since 2005?

Remember remember the 5th of November

legendary

Activity: 1862

Merit: 1011

Reverse engineer from time to time

Since when can you specify the array keyword before variable declaration in a function's arguments?

minzie

member

Activity: 110

Merit: 10

Thanks for sharing. I always learn something from other people's code.

n4ru

sr. member

Activity: 350

Merit: 250

This is a project I just recently started. It's written in PHP, upload the script somewhere and run it through your browser.

It shows when there is arbitrage available within the BTC-e exchange itself. It does nothing else yet, I'm still working on getting automatic trades executed. Fees are automatically calculated. If I've missed something here as far as the actual calculations go please let me know. Yes, I'm aware it's only going off last price at the moment, it's going to be able to calculate using the whole order book soon. It's sloppy and quite awful, but I've only just started. I've had good luck with it during the night when prices tend to jump around a bit more, and conversions through RUR/EUR seem to yield the best results.

Code:

function btce_query($method, array $req = array()) {
	
        static $ch = null;
        if (is_null($ch)) {
                $ch = curl_init();
                curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
                curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; BTCE PHP client; '.php_uname('s').'; PHP/'.phpversion().')');
        }
        curl_setopt($ch, CURLOPT_URL, 'https://btc-e.ru/tapi/');
        curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
 
        // run the query
        $res = curl_exec($ch);
        if ($res === false) throw new Exception('Could not get reply: '.curl_error($ch));
        $dec = json_decode($res, true);
        if (!$dec) throw new Exception('Invalid data received, please make sure connection is working and requested API exists');
        return $dec;
}


function GetJsonFeed($json_url)
{
    $feed = file_get_contents($json_url);
    return json_decode($feed, true);
}
$BTC_RUR = GetJsonFeed("http://btc-e.com/api/2/btc_rur/ticker");
$BTC_RUR_SELL = $BTC_RUR["ticker"]["sell"];
$BTC_RUR_BUY = $BTC_RUR["ticker"]["buy"];
// LTC - RUR
$LTC_RUR = GetJsonFeed("http://btc-e.com/api/2/ltc_rur/ticker");
$LTC_RUR_SELL = $LTC_RUR["ticker"]["sell"];
$LTC_RUR_BUY = $LTC_RUR["ticker"]["buy"];
// USD - RUR
$USD_RUR = GetJsonFeed("http://btc-e.com/api/2/usd_rur/ticker");
$USD_RUR_SELL = $USD_RUR["ticker"]["sell"];
$USD_RUR_BUY = $USD_RUR["ticker"]["buy"];
// BTC -  EUR
$BTC_EUR = GetJsonFeed("http://btc-e.com/api/2/btc_eur/ticker");
$BTC_EUR_SELL = $BTC_EUR["ticker"]["sell"];
$BTC_EUR_BUY = $BTC_EUR["ticker"]["buy"];
// LTC - BTC
$LTC_BTC = GetJsonFeed("http://btc-e.com/api/2/ltc_btc/ticker");
$LTC_BTC_SELL = $LTC_BTC["ticker"]["sell"];
$LTC_BTC_BUY = $LTC_BTC["ticker"]["buy"];
// EUR - USD
$EUR_USD = GetJsonFeed("http://btc-e.com/api/2/eur_usd/ticker");
$EUR_USD_SELL = $EUR_USD["ticker"]["sell"];
$EUR_USD_BUY = $EUR_USD["ticker"]["buy"];
// LTC - USD
$LTC_USD = GetJsonFeed("http://btc-e.com/api/2/ltc_usd/ticker");
$LTC_USD_SELL = $LTC_USD["ticker"]["sell"];
$LTC_USD_BUY = $LTC_USD["ticker"]["buy"];
// BTC - USD
$BTC_USD = GetJsonFeed("http://btc-e.com/api/2/btc_usd/ticker");
$BTC_USD_SELL = $BTC_USD["ticker"]["sell"];
$BTC_USD_BUY = $BTC_USD["ticker"]["buy"];
// Possible Conversions
// BTC -> LTC, USD, EUR, RUR
// LTC -> USD, RUR
// USD -> RUR, EUR

echo('');
echo "";
echo "SELL / BUY
";
echo "BTC -> USD : ".$BTC_USD_SELL." / ".$BTC_USD_BUY."
";
echo "BTC -> RUR : ".$BTC_RUR_SELL." / ".$BTC_RUR_BUY."
";
echo "BTC -> EUR : ".$BTC_EUR_SELL." / ".$BTC_EUR_BUY."
";
echo "LTC -> BTC : ".$LTC_BTC_SELL." / ".$LTC_BTC_BUY."
";
echo "LTC -> USD : ".$LTC_USD_SELL." / ".$LTC_USD_BUY."
";
echo "LTC -> RUR : ".$LTC_RUR_SELL." / ".$LTC_RUR_BUY."
";
echo "USD -> RUR : ".$USD_RUR_SELL." / ".$USD_RUR_BUY."
";
echo "EUR -> USD : ".$EUR_USD_SELL." / ".$EUR_USD_BUY."
";

echo "
~ Trade ~";
echo "
1 BTC -> USD - BTC <- ALL USD";
echo "
1 BTC -> RUR - BTC <- ALL RUR";
echo "
1 BTC -> EUR - BTC <- ALL EUR";
echo "
1 BTC -> LTC - BTC <- ALL LTC";
echo "
ALL LTC -> USD - LTC <- ALL USD";
echo "
ALL LTC -> RUR - LTC <- ALL RUR";
echo "
ALL USD -> RUR - USD <- ALL RUR";
echo "
ALL EUR -> USD - EUR <- ALL USD";

echo "

~Arbitrage~
";
// BTC -> LTC -> USD -> EUR -> BTC
$BTC_LTC_USD_EUR_BTC = 1 / $LTC_BTC_BUY * 0.998 * $LTC_USD_SELL * 0.998 / $EUR_USD_BUY * 0.998 / $BTC_EUR_BUY * 0.998;
if ($BTC_LTC_USD_EUR_BTC > 1.01) { echo "BTC -> LTC -> USD -> EUR -> BTC - ".$BTC_LTC_USD_EUR_BTC."
"; echo "Arbitrage Found"; };
// BTC -> LTC -> USD -> RUR -> BTC
$BTC_LTC_USD_RUR_BTC = 1 / $LTC_BTC_BUY * 0.998 * $LTC_USD_SELL * 0.998 * $USD_RUR_SELL * 0.995 / $BTC_RUR_BUY * 0.998;
if ($BTC_LTC_USD_RUR_BTC > 1.01) { echo "BTC -> LTC -> USD -> RUR -> BTC - ".$BTC_LTC_USD_RUR_BTC."
"; echo "Arbitrage Found"; };
// BTC -> LTC -> RUR -> USD -> BTC
$BTC_LTC_RUR_USD_BTC = 1 / $LTC_BTC_BUY * 0.998 * $LTC_RUR_SELL * 0.995 / $USD_RUR_BUY * 0.995 / $BTC_USD_BUY * 0.998;
if ($BTC_LTC_RUR_USD_BTC > 1.01) { echo "BTC -> LTC -> RUR -> USD -> BTC - ".$BTC_LTC_RUR_USD_BTC."
"; echo "Arbitrage Found"; };
// BTC -> USD -> RUR -> LTC -> BTC
$BTC_USD_RUR_LTC_BTC = 1 * $BTC_USD_SELL * 0.998 * $USD_RUR_SELL * 0.995 / $LTC_RUR_BUY * 0.998 * $LTC_BTC_SELL * 0.995;
if ($BTC_USD_RUR_LTC_BTC > 1.01) { echo "BTC -> USD -> RUR -> LTC -> BTC - ".$BTC_USD_RUR_LTC_BTC."
"; echo "Arbitrage Found"; };
// BTC -> USD -> LTC -> RUR -> BTC
$BTC_USD_LTC_RUR_BTC = 1 * $BTC_USD_SELL * 0.998 / $LTC_USD_BUY * 0.998 * $LTC_RUR_SELL * 0.998 / $BTC_RUR_BUY * 0.998;
if ($BTC_USD_LTC_RUR_BTC > 1.01) { echo "BTC -> USD -> LTC -> RUR -> BTC - ".$BTC_USD_LTC_RUR_BTC."
"; echo "Arbitrage Found"; };
// BTC -> RUR -> USD -> LTC -> BTC
$BTC_RUR_USD_LTC_BTC = 1 * $BTC_RUR_SELL * 0.998 / $USD_RUR_BUY * 0.995 / $LTC_USD_BUY * 0.998 * $LTC_BTC_SELL * 0.998;
if ($BTC_RUR_USD_LTC_BTC > 1.01) { echo "BTC -> RUR -> USD -> LTC -> BTC - ".$BTC_RUR_USD_LTC_BTC."
"; echo "Arbitrage Found"; };
// BTC -> RUR -> LTC -> USD -> BTC
$BTC_RUR_LTC_USD_BTC = 1 * $BTC_RUR_SELL * 0.998 / $LTC_RUR_BUY * 0.998 * $LTC_USD_BUY * 0.998 / $BTC_USD_BUY * 0.998;
if ($BTC_RUR_LTC_USD_BTC > 1.01) { echo "BTC -> RUR -> LTC -> USD -> BTC - ".$BTC_RUR_LTC_USD_BTC."
"; echo "Arbitrage Found"; };

// BTC -> EUR -> USD -> BTC 
$BTC_EUR_USD_BTC = 1 * $BTC_EUR_SELL * 0.998 * $EUR_USD_SELL * 0.998 / $BTC_USD_BUY * 0.998;
if ($BTC_EUR_USD_BTC > 1.01) { echo "BTC -> EUR -> USD -> BTC - ".$BTC_EUR_USD_BTC."
"; echo "Arbitrage Found"; };
// BTC -> USD -> EUR -> BTC
$BTC_USD_EUR_BTC = 1 * $BTC_USD_SELL * 0.998 / $EUR_USD_BUY * 0.998 / $BTC_EUR_BUY * 0.998;
if ($BTC_USD_EUR_BTC > 1.01) { echo "BTC -> USD -> EUR -> BTC - ".$BTC_USD_EUR_BTC."
"; echo "Arbitrage Found"; };

// BTC -> RUR -> USD -> BTC
$BTC_RUR_USD_BTC = 1 * $BTC_RUR_SELL * 0.998 / $USD_RUR_BUY * 0.995 / $BTC_USD_BUY * 0.998;
if ($BTC_RUR_USD_BTC > 1.01) { echo "BTC -> RUR -> USD -> BTC - ".$BTC_RUR_USD_BTC."
"; echo "Arbitrage Found"; };
// BTC -> USD -> RUR -> BTC
$BTC_USD_RUR_BTC = 1 * $BTC_USD_SELL * 0.998 * $USD_RUR_SELL * 0.995 / $BTC_RUR_BUY * 0.998;
if ($BTC_USD_RUR_BTC > 1.01) { echo "BTC -> USD -> RUR -> BTC - ".$BTC_USD_RUR_BTC."
"; echo "Arbitrage Found"; };

// BTC -> LTC -> USD -> BTC
$BTC_LTC_USD_BTC = 1 / $LTC_BTC_BUY * 0.998 * $LTC_USD_SELL * 0.998 / $BTC_USD_BUY * 0.998;
if ($BTC_LTC_USD_BTC > 1.01) { echo "BTC -> LTC -> USD -> BTC - ".$BTC_LTC_USD_BTC."
"; echo "Arbitrage Found"; };
// BTC -> USD -> LTC -> BTC
$BTC_USD_LTC_BTC = 1 * $BTC_USD_SELL * 0.998 / $LTC_USD_BUY * 0.998 * $LTC_BTC_SELL * 0.998;
if ($BTC_USD_LTC_BTC > 1.01) { echo "BTC -> USD -> LTC -> BTC - ".$BTC_USD_LTC_BTC."
"; echo "Arbitrage Found"; };

echo "";
echo "No Arbitrage";
?>

Topic: [Code] PHP Arbitrage Calculator for BTC-e (Read 2691 times)