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docs/ccxt/wiki/examples/php/watchOrderBookForSymbols.md

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+- [Watchorderbookforsymbols](./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 //
+function example() {
+    return Async\async(function () {
+        $binance = new \ccxt\pro\binance(array());
+        $symbol = ['BTC/USDT', 'ETH/USDT', 'DOGE/USDT'];
+        while (true) {
+            $orderbook = Async\await($binance->watch_order_book_for_symbols($symbol));
+            var_dump($orderbook['symbol'], $orderbook['asks'][0], $orderbook['bids'][0]);
+        }
+    }) ();
+}
+
+
+Async\await(example());
+ 
+```