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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                # Coroutine\Socket->recvfrom 接收數據,并設置來源主機的地址和端口。用于`SOCK_DGRAM`類型的`socket`。 ```php function Coroutine\Socket->recvfrom(array &$peer, double $timeout = -1) : string | false; ``` 此方法會引起協程調度,底層會立即掛起當前協程,并監聽可讀事件。可讀事件觸發,收到數據后執行`recvfrom`系統調用獲取數據包。 參數 ---- * `$peer`:對端地址和端口,引用類型。函數成功返回時會設置為數組,包括`address`和`port`兩個元素 * `$timeout`:超時設置,在規定的時間內未返回數據,`recvfrom`方法會返回`false` 返回值 --- * 成功接收數據,返回數據內容,并設置`$peer`為數組 * 失敗返回`false`,并設置`errCode`屬性,不修改`$peer`的內容 實例 ---- ```php go(function () { $socket = new Co\Socket(AF_INET, SOCK_DGRAM, 0); $socket->bind('127.0.0.1', 9601); while (true) { $peer = null; $data = $socket->recvfrom($peer); echo "[Server] recvfrom[{$peer['address']}:{$peer['port']}] : $data\n"; $socket->sendto($peer['address'], $peer['port'], "Swoole: $data"); } }); ```
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                              哎呀哎呀视频在线观看