(PHP ActiveX) Find Certificate for Email Address in Current-User Certificate Store (Windows-Only)

This is a Windows-only example to find a certificate for a given email address in the current-user certificate store (located in the Windows Registry).

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

// This is a Windows-only example because it lists the certificates
// stored in the Windows Current User Certificate Store located in the
// Windows Registry.

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

$readOnly = 1;
$success = $certStore->OpenCurrentUserStore($readOnly);
if ($success == 0) {
    print $certStore->LastErrorText . "\n";
    exit;
}

$emailAddr = 'support@chilkatsoft.com';
// cert is a Chilkat.Cert
$cert = $certStore->FindCertBySubjectE($emailAddr);
if ($certStore->LastMethodSuccess != 1) {
    print 'No certificate found for ' . $emailAddr . "\n";
    exit;
}

print 'Found: ' . $cert->SubjectDN . "\n";

// It should be case-insensitive, however it was found not to be.
// The case-insensitive search is fixed starting in Chilkat v9.5.0.65.
$emailAddr = 'SUPPORT@chilkatsoft.com';
// cert is a Chilkat.Cert
$cert = $certStore->FindCertBySubjectE($emailAddr);
if ($certStore->LastMethodSuccess != 1) {
    print 'No certificate found for ' . $emailAddr . "\n";
    exit;
}

print 'Found: ' . $cert->SubjectDN . "\n";


?>