socket_create_pair

Creates a pair of indistinguishable sockets and stores them in an array (PHP 4 >= 4.0.7, PHP 5)
bool socket_create_pair ( int domain, int type, int protocol, array &fd )

Example 2292. socket_create_pair() example

<?php

$sockets = array();
/* Setup socket pair */
if (socket_create_pair(AF_UNIX, SOCK_STREAM, 0, $sockets) === false) {

    echo "socket_create_pair failed. Reason: ".socket_strerror(socket_last_error());

}
/* Send and Recieve Data */
if (socket_write($sockets[0], "ABCdef123\n", strlen("ABCdef123\n")) === false) {

    echo "socket_write() failed. Reason: ".socket_strerror(socket_last_error($sockets[0]));

}

if (($data = socket_read($sockets[1], strlen("ABCdef123\n"), PHP_BINARY_READ) === false) {

    echo "socket_read() failed. Reason: ".socket_strerror(socket_last_error($sockets[1]));

}
var_dump($data);

/* Close sockets */
socket_close($sockets[0]);
socket_close($sockets[1]);
?>

Example 2293. socket_create_pair() IPC example

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<?php

$ary = array();
$strone = 'Message From Parent.';
$strtwo = 'Message From Child.';

if (socket_create_pair(AF_UNIX, SOCK_STREAM, 0, $ary) === false) {

    echo "socket_create_pair() failed. Reason: ".socket_strerror(socket_last_error());

}
$pid = pcntl_fork();

if ($pid == -1) {

    echo 'Could not fork Process.';

} elseif ($pid) {

    /*parent*/

    socket_close($ary[0]);

    if (socket_write($ary[1], $strone, strlen($strone)) === false) {

        echo "socket_write() failed. Reason: ".socket_strerror(socket_last_error($ary[1]));

    }

    if (socket_read($ary[1], strlen($strtwo), PHP_BINARY_READ) == $strtwo) {

        echo "Recieved $strtwo\n";

    }

    socket_close($ary[1]);

} else {

    /*child*/

    socket_close($ary[1]);

    if (socket_write($ary[0], $strtwo, strlen($strtwo)) === false) {

        echo "socket_write() failed. Reason: ".socket_strerror(socket_last_error($ary[0]));

    }

    if (socket_read($ary[0], strlen($strone), PHP_BINARY_READ) == $strone) {

        echo "Recieved $strone\n";

    }

    socket_close($ary[0]);

}
?>

Code Examples / Notes » socket_create_pair

There is a syntax error in one of the code samples provided, it should look like this: <?php $sockets = array(); /* Setup socket pair */ if (socket_create_pair(AF_UNIX, SOCK_STREAM, 0, $sockets) === false) { echo "socket_create_pair failed. Reason: ".socket_strerror(socket_last_error()); } /* Send and Recieve Data */ if (socket_write($sockets[0], "ABCdef123\n", strlen("ABCdef123\n")) === false) { echo "socket_write() failed. Reason: ".socket_strerror(socket_last_error($sockets[0])); } if (($data = socket_read($sockets[1], strlen("ABCdef123\n"), PHP_BINARY_READ)) === false) { echo "socket_read() failed. Reason: ".socket_strerror(socket_last_error($sockets[1])); } var_dump($data); /* Close sockets */ socket_close($sockets[0]); socket_close($sockets[1]); ?>

socket_create_pair

Creates a pair of indistinguishable sockets and stores them in an array (PHP 4 >= 4.0.7, PHP 5) bool socket_create_pair ( int domain, int type, int protocol, array &fd )

Example 2292. socket_create_pair() example

Example 2293. socket_create_pair() IPC example

Code Examples / Notes » socket_create_pair

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Creates a pair of indistinguishable sockets and stores them in an array (PHP 4 >= 4.0.7, PHP 5)
bool socket_create_pair ( int domain, int type, int protocol, array &fd )