Poll a Socket for Available Data

See more Socket/SSL/TLS Examples

Demonstrates Socket.PollDataAvailable, which performs a nonblocking check for readable activity and returns whether data or another read-ready condition is present.

use chilkat();

$success = 0;

$socket = chilkat::CkSocket->new();

#  Connect to the server using TLS.
$bTls = 1;
$maxWaitMs = 5000;
$success = $socket->Connect("example.com",5000,$bTls,$maxWaitMs);
if ($success == 0) {
    print $socket->lastErrorText() . "\r\n";
    exit;
}

#  Perform a nonblocking check for readable data.  Returns 1 when data or another read-ready
#  condition is present, and 0 when nothing is immediately available.
$bAvailable = $socket->PollDataAvailable();
if ($bAvailable != 1) {
    print "No data is immediately available." . "\r\n";
}
else {
    print "Data is available to read." . "\r\n";
}