stream_socket_pair

(PHP 5 >= 5.1.0, PHP 7)

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stream_socket_pair ( int $domain , int $type , int $protocol ) : array

stream_socket_pair() 锟斤拷锟斤拷一锟斤拷锟斤拷全一锟斤拷锟斤拷锟斤拷锟斤拷锟阶斤拷锟斤拷锟斤拷锟接ｏ拷锟斤拷锟斤拷锟斤拷锟酵拷锟斤拷岜伙拷锟斤拷诮锟斤拷碳锟酵拷锟�(Inter-Process Communication)

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domain: 使锟矫碉拷协锟斤拷锟藉： STREAM_PF_INET, STREAM_PF_INET6 or STREAM_PF_UNIX
type: 通锟斤拷锟斤拷锟斤拷: STREAM_SOCK_DGRAM, STREAM_SOCK_RAW, STREAM_SOCK_RDM, STREAM_SOCK_SEQPACKET or STREAM_SOCK_STREAM
protocol: 使锟矫的达拷锟斤拷协锟斤拷: STREAM_IPPROTO_ICMP, STREAM_IPPROTO_IP, STREAM_IPPROTO_RAW, STREAM_IPPROTO_TCP or STREAM_IPPROTO_UDP

Note: Please consult the Streams constant list for further details on each constant.

锟斤拷锟斤拷值

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Example #1 A stream_socket_pair() example

This example shows the basic usage of stream_socket_pair() in Inter-Process Comunication.


<?php

$sockets = stream_socket_pair(STREAM_PF_UNIX, STREAM_SOCK_STREAM, STREAM_IPPROTO_IP);
$pid     = pcntl_fork();

if ($pid == -1) {
     die('could not fork');

} else if ($pid) {
     /* parent */
    fclose($sockets[0]);

    fwrite($sockets[1], "child PID: $pid\n");
    echo fgets($sockets[1]);

    fclose($sockets[1]);

} else {
    /* child */
    fclose($sockets[1]);

    fwrite($sockets[0], "message from child\n");
    echo fgets($sockets[0]);

    fclose($sockets[0]);
}

?>

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child PID: 1378
message from child