swoole_async_dns_lookup

(PECL swoole >= 1.9.0)

swoole_async_dns_lookup — Async and non-blocking hostname to IP lookup

swoole_async_dns_lookup ( string $hostname , callable $callback ) : bool

hostname

The host name.

callback

callback ( string $hostname , string $ip ) : mixed

成功时返回 true，或者在失败时返回 false。

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