(PHP ActiveX) Convert to DER encoded X.509 Certificate (.cer, .crt)

Loads a digital certificate from any format and saves to a binary DER encoded X.509 Certificate (.cer, .crt).

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");

// LoadFromFile will load virtually any certificate format file.
// It will auto-recognize the format and load appropiately.
// In this case, load a PEM format certificate and convert to DER.
$success = $cert->LoadFromFile('/Users/chilkat/testData/pem/chilkat.pem');
if ($success != 1) {
    print $cert->LastErrorText . "\n";
    exit;
}

$success = $cert->ExportCertDerFile('chilkat.der');
if ($success != 1) {
    print $cert->LastErrorText . "\n";
    exit;
}

print 'Converted certificate from PEM to DER format.' . "\n";

?>