(PHP Extension) Get Certificate Valid To/From Dates

Demonstrates how to get the certificate "valid from" and "valid to" dates.

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?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");

$cert = new CkCert();

$success = $cert->LoadFromFile('qa_data/certs/testCert.cer');
if ($success != true) {
    print $cert->lastErrorText() . "\n";
    exit;
}

// Get the certificate valid-from date/time
// ckdt is a CkDateTime
$ckdt = $cert->GetValidFromDt();
// Get the local timestamp string.
print 'Valid from: ' . $ckdt->getAsTimestamp(true) . "\n";
// Valid from: 2017-03-17T19:00:00-05:00

// Now get the date/time as another object where we can get the individual numeric date parts.
// dt is a CkDtObj
$dt = $ckdt->GetDtObj(true);
print $dt->get_Day() . '/' . $dt->get_Month() . '/' . $dt->get_Year() . '  ' . $dt->get_Hour() . ':'
     . $dt->get_Minute() . "\n";

// Get the certificate valid-to date/time
// ckdt is a CkDateTime
$ckdt = $cert->GetValidToDt();
print 'Valid to: ' . $ckdt->getAsTimestamp(true) . "\n";
// Valid to: 2020-03-18T18:59:59-05:00
// dt is a CkDtObj
$dt = $ckdt->GetDtObj(true);
print $dt->get_Day() . '/' . $dt->get_Month() . '/' . $dt->get_Year() . '  ' . $dt->get_Hour() . ':'
     . $dt->get_Minute() . "\n";


?>