Check Whether a Socket Is Writable

See more Socket/SSL/TLS Examples

Demonstrates Socket.CheckWriteable, which waits for the connected socket to become writable. It returns 1 if writable, 0 if it did not become writable before the timeout, or -1 on error.

<?php

include("chilkat.php");

$success = false;

$socket = new CkSocket();

//  Connect to the server using TLS.
$bTls = true;
$maxWaitMs = 5000;
$success = $socket->Connect('example.com',5000,$bTls,$maxWaitMs);
if ($success == false) {
    print $socket->lastErrorText() . "\n";
    exit;
}

//  Wait up to 5 seconds for the socket to become writable.  Returns 1 if writable, 0 if it did not
//  become writable before the timeout, or -1 on error.
$writable = $socket->CheckWriteable(5000);
if ($writable < 0) {
    print $socket->lastErrorText() . "\n";
    exit;
}

if ($writable != 1) {
    print 'The socket did not become writable before the timeout.' . "\n";
    exit;
}

print 'The socket is writable.' . "\n";

?>