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docs/ccxt/wiki/examples/php/huobi-swaps.md

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+- [Huobi Swaps](./examples/php/)
+
+
+ ```php
+ <?php
+
+include './ccxt.php';
+
+date_default_timezone_set('UTC');
+
+$exchange = new \ccxt\huobipro(array(
+    'apiKey' => 'YOUR_API_KEY', // ←------------ replace with your keys
+    'secret' => 'YOUR_SECRET_KEY',
+    // 'verbose' => true, // uncomment if debug output is needed
+));
+
+try {
+
+    $markets = $exchange->load_markets ();
+
+    // creating a linear swap (limit) order
+    $symbol = 'ADA/USDT:USDT';
+    $order_type = 'limit';
+    $side = 'buy';
+    $offset = 'open';
+    $leverage = 1;
+    $amount = 1;
+    $price = 1;
+
+    $params = array (
+        'offset' => $offset,
+        'lever_rate' => $leverage,
+    );
+
+    $order = $exchange->create_order ($symbol, $order_type, $side, $amount, $price, $params);
+    var_dump ($order['id']);
+
+} catch (\ccxt\NetworkError $e) {
+    echo '[Network Error] ' . $e->getMessage() . "\n";
+} catch (\ccxt\ExchangeError $e) {
+    echo '[Exchange Error] ' . $e->getMessage() . "\n";
+} catch (Exception $e) {
+    echo '[Error] ' . $e->getMessage() . "\n";
+}
+
+?>
+ 
+```