(PHP Extension) 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.

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<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

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

$http = new CkHttp();

// 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";

?>