(PHP Extension) Query NTP Server for Current Date/Time

Demonstrates how to query an NTP server to get the current date/time.

Note: This feature was added in Chilkat v9.5.0.96.

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<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

// Specify the NTP server domain.
// Information is passed in a JSON object to allow for any unanticipated future optional information that might need to be provided.
$json = new CkJsonObject();
$json->UpdateString('ntp_server','pool.ntp.org');

// Query the NTP server for the current date/time.
$dt = new CkDateTime();
// Note: The SetFromNtpServer method is available starting in v9.5.0.96 for most Chilkat builds, but not all.
// If the SetFromNtpServer method is not present, contact support@chilkatsoft.com for a hotfix build.
// It should be available in all programming languages/platforms starting in v9.5.0.97
$success = $dt->SetFromNtpServer($json->emit());
if ($success == false) {
    print $dt->lastErrorText() . "\n";
    exit;
}

// Show the date/time in various formats..
$bLocalTime = true;
print $dt->getAsTimestamp($bLocalTime) . "\n";
print $dt->getAsRfc822($bLocalTime) . "\n";
print $dt->GetAsUnixTime($bLocalTime) . "\n";

// Sample output:

// 2023-10-31T09:43:27-05:00
// Tue, 31 Oct 2023 09:43:27 -0500
// 1698745407

?>