(PHP ActiveX) OCSP Check Domain's Server Certificate Revocation Status

Sends an OCSP request to determine the revocation status for an SSL server certificate.

Note: This example requires Chilkat v9.5.0.84 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.

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

// Check the revocation status of the SSL server certificate for chilkatsoft.com
$status = $http->OcspCheck('chilkatsoft.com',443);

print 'chilkatsoft.com status = ' . $status . "\n";

// The status can have 4 values:
// -1: Unable to check because of an error.
//  0: Good
//  1: Revoked
//  2: Unknown

if ($status < 0) {
    print $http->LastErrorText . "\n";
}

// Now check the status for a revoked server certificate.
$status = $http->OcspCheck('revoked.badssl.com',443);

print 'revoked.badssl.com status = ' . $status . "\n";

?>