function bter_query($path, array $req = array()) {

// API settings, add your Key and Secret at here

$key = '';

$secret = '';

// generate a nonce to avoid problems with 32bits systems

$mt = explode(' ', microtime());

$req['nonce'] = $mt[1].substr($mt[0], 2, 6);

// generate the POST data string

$post_data = http_build_query($req, '', '&');

$sign = hash_hmac('sha512', $post_data, $secret);

// generate the extra headers

$headers = array(

'KEY: '.$key,

'SIGN: '.$sign,

//!!! please set Content-Type to application/x-www-form-urlencoded if it's not the default value

// curl handle (initialize if required)

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; Bter PHP bot; '.php_uname('a').'; PHP/'.phpversion().')'

curl_setopt($ch, CURLOPT_URL, 'https://bter.com/api/'.$path);

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 ($res === false) throw new Exception('Curl error: '.curl_error($ch));

//echo $res;

$dec = json_decode($res, true);

if (!$dec) throw new Exception('Invalid data: '.$res);

return $dec;

function get_top_rate($pair, $type='BUY') {

$rate = 0;

// our curl handle (initialize if required)

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; Bter PHP bot; '.php_uname('a').'; PHP/'.phpversion().')'

curl_setopt($ch, CURLOPT_URL, 'https://bter.com/api/1/depth/'.$pair);

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));

//echo $res;

$dec = json_decode($res, true);

if (!$dec) throw new Exception('Invalid data: '.$res);

if (strtoupper($type) == 'BUY') {

$r = $dec['bids'][0];

$rate = $r[0];

} else {

$r = end($dec['asks']);

$rate = $r[0];

return $rate;

try {

// example 1: get funds

var_dump(bter_query('1/private/getfunds'));

// example 2: place a buy order

$pair = 'ltc_btc';

$type = 'buy';

$rate = get_top_rate($pair, $type) * 1.01;

var_dump(bter_query('1/private/placeorder',

array(

'pair' => "$pair",

'type' => "$type",

'rate' => "$rate",

'amount' => '0.01',

// example 3: cancel an order

var_dump(bter_query('1/private/cancelorder', array('order_id' => 125811)));

// example 4: get order status

var_dump(bter_query('1/private/getorder', array('order_id' => 15088)));

//example 5: list all open orders

var_dump(bter_query('1/private/orderlist'));

} catch (Exception $e) {

echo "Error:".$e->getMessage();

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function bter_query($path, array $req = array()) {// API settings, add your Key and Secret at here$key = '';$secret = '';// generate a nonce to avoid problems with 32bits systems$mt = explode(' ', mic...