(PHP ActiveX) Get Certificate Subject Part by Name or OID

Demonstrates the GetSubjectPart method where a name or OID can be passed.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Cert')
$cert = new COM("Chilkat.Cert");

$success = $cert->LoadByCommonName('myCert');
if ($success == 0) {
    print $cert->LastErrorText . "\n";
    exit;
}

// This example demonstrates getting the SERIALNUMBER part of the subject,
// if one such part exists in the cert's subject.
// Not too many certicates include the serial number in the Subject.
// (Chilean issued certificates for SII is one such case where the SERIALNUMBER part exists within the Subject.)
$serialNum = $cert->getSubjectPart('SERIALNUMBER');
if ($cert->LastMethodSuccess == 0) {
    print 'No SERIALNUMBER part exists.' . "\n";
    exit;
}

print $serialNum . "\n";

// We could also get the part by the OID.
// See https://oidref.com/2.5.4.5 for a list of OID's in the 2.5.4.* range..
// The OID for SERIALNUMBER is "2.5.4.5"
$serialNum = $cert->getSubjectPart('2.5.4.5');
if ($cert->LastMethodSuccess == 0) {
    print 'No SERIALNUMBER part exists.' . "\n";
    exit;
}

print $serialNum . "\n";

?>