Swoole\Client::send

(PHP 5 >= 5.2.0, PHP 7, PECL swoole >= 1.9.0)

Swoole\Client::send — Send data to the remote TCP socket.

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public Swoole\Client::send ( string $data [, string $flag ] ) : integer

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data: The data to send which can be string or binary
flag

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If the client sends data successfully, it returns the length of data sent. Or it returns false and sets $swoole_client->errCode. For sync client, there is no limit for the data to send. For async client, The limit for the data to send is socket_buffer_size.