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docs/ccxt/wiki/examples/php/fetch-ohlcv-many-exchanges-continuosly.md

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+- [Fetch Ohlcv Many Exchanges Continuosly](./examples/php/)
+
+
+ ```php
+ <?php
+namespace ccxt;
+include_once (__DIR__.'/../../ccxt.php');
+// ----------------------------------------------------------------------------
+
+// PLEASE DO NOT EDIT THIS FILE, IT IS GENERATED AND WILL BE OVERWRITTEN:
+// https://github.com/ccxt/ccxt/blob/master/CONTRIBUTING.md#how-to-contribute-code
+
+// -----------------------------------------------------------------------------
+
+error_reporting(E_ALL);
+date_default_timezone_set('UTC');
+
+use ccxt\Precise;
+use React\Async;
+use React\Promise;
+
+
+// AUTO-TRANSPILE //
+// fetch and handle constinuosly
+function fetch_ohlcv_continuously($exchange, $symbol) {
+    return Async\async(function () use ($exchange, $symbol) {
+        while (true) {
+            try {
+                $ohlcv = Async\await($exchange->fetch_ohlcv($symbol));
+                $ohlcv_length = count($ohlcv);
+                var_dump('Fetched ', $exchange->id, ' - ', $symbol, ' candles. last candle: ', $ohlcv[$ohlcv_length - 1]);
+            } catch(Exception $e) {
+                var_dump($e);
+                break;
+            }
+        }
+
+    }) ();
+}
+
+
+// start exchanges and fetch OHLCV loop
+function start_exchange($exchange_name, $symbols) {
+    return Async\async(function () use ($exchange_name, $symbols) {
+        $exchange_class = '\ccxt\async\\'.$exchange_name;
+        $ex = new $exchange_class(array());
+        $promises = [];
+        for ($i = 0; $i < count($symbols); $i++) {
+            $symbol = $symbols[$i];
+            $promises[] = fetch_ohlcv_continuously($ex, $symbol);
+        }
+        Async\await(Promise\all($promises));
+        Async\await($ex->close());
+    }) ();
+}
+
+
+// main function
+function example() {
+    return Async\async(function () {
+        $exchanges = ['binance', 'okx', 'kraken'];
+        $symbols = ['BTC/USDT', 'ETH/USDT'];
+        $promises = [];
+        for ($i = 0; $i < count($exchanges); $i++) {
+            $exchange_name = $exchanges[$i];
+            $promises[] = start_exchange($exchange_name, $symbols);
+        }
+        Async\await(Promise\all($promises));
+    }) ();
+}
+
+
+Async\await(example());
+ 
+```