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ritmex-bot/docs/ccxt/wiki/examples/php/built-in-rate-limiting-poller.md
2025-10-03 15:28:16 +08:00

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- [Built In Rate Limiting Poller](./examples/php/)
```php
<?php
include './ccxt.php';
date_default_timezone_set('UTC');
$exchange = '\\ccxt\\poloniex';
$exchange = new $exchange();
$symbol = 'DOGE/BTC';
while (true) {
$order_book = $exchange->fetch_order_book($symbol);
echo "----------------------------------------------------------------\n";
echo date('c') . "\n";
echo count($order_book['bids']) . " bids and " . count($order_book['asks']) . " asks\n";
echo sprintf("bid: %.8f ask: %.8f", $order_book['bids'][0][0], $order_book['asks'][0][0]) . "\n";
}
```