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  • stream_socket_sendto()

    (PHP 5, PHP 7)

    Sends a message to a socket, whether it is connected or not

    说明

    stream_socket_sendto(resource $socket,string $data[,int $flags= 0[,string $address]]): int

    Sends the specified$datathrough the$socket.

    参数

    $socket

    The socket to send$datato.

    $data

    The data to be sent.

    $flags

    The value of$flagscan be any combination of the following:

    possible values for$flags
    STREAM_OOBProcess OOB (out-of-band) data.
    $address

    The address specified when the socket stream was created will be used unless an alternate address is specified in$address.

    If specified, it must be in dotted quad (or [ipv6]) format.

    返回值

    Returns a result code, as an integer.

    范例

    Example #1stream_socket_sendto()Example

    <?php
    /* Open a socket to port 1234 on localhost */
    $socket = stream_socket_client('tcp://127.0.0.1:1234');
    /* Send ordinary data via ordinary channels. */
    fwrite($socket, "Normal data transmit.");
    /* Send more data out of band. */
    stream_socket_sendto($socket, "Out of Band data.", STREAM_OOB);
    /* Close it up */
    fclose($socket);
    ?>
    

    参见

    The return appears to be the size in bytes of the data written to the socket, or -1 on failure (this could be because of non blocking)