(PHP ActiveX) Convert CRL PEM to XML

Loads a CRL (Certificate Revocation List) from the PEM file format and converts to XML to allow for visual examination and parsing.

Note: This example requires Chilkat v9.5.0.77 or greater.

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 example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// This example requires Chilkat v9.5.0.77 or greater.
// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Pem')
$pem = new COM("Chilkat.Pem");

$pem->VerboseLogging = 1;
$success = $pem->LoadPemFile('qa_data/crl/sampleCrl.pem','password_not_used');
if ($success != 1) {
    print $pem->LastErrorText . "\n";
    exit;
}

$numCrls = $pem->NumCrls;
$i = 0;

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Asn')
$asn = new COM("Chilkat.Asn");
// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Xml')
$xml = new COM("Chilkat.Xml");
while ($i < $numCrls) {

    // Get the CRL as base64 (multi-line)
    $crlBase64 = $pem->getEncodedItem('crl','','base64_mime',$i);
    if ($pem->LastMethodSuccess != 1) {
        print $pem->LastErrorText . "\n";
        exit;
    }

    print $crlBase64 . "\n";

    $success = $asn->LoadEncoded($crlBase64,'base64');
    if ($success != 1) {
        print $asn->LastErrorText . "\n";
        exit;
    }

    // Convert ASN.1 to XML and load into xml and re-emit for pretty printing..
    $xml->LoadXml($asn->asnToXml());
    print $xml->getXml() . "\n";

    // Use this online tool to generate parsing code from CRL XML: 
    // Generate Parsing Code from XML

    print '-------------------------------------' . "\n";
    $i = $i + 1;
}


?>