PHP Manual
Swoole\Async
Async and non-blocking hostname to IP lookup.

Swoole\Async::dnsLookup

(PECL swoole >= 1.9.0)

Swoole\Async::dnsLookup — Async and non-blocking hostname to IP lookup.

Description

public static Swoole\Async::dnsLookup(string $hostname, callable $callback): void

Warning

This function is currently not documented; only its argument list is available.

Parameters

hostname

The host name.

callback

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

hostname: The host name.
IP: The IP address.

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