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(PHP ActiveX) Get the Server Certificate, Certificate Chain, and Root CA CertificateDemonstrates how to get the HTTP server certificate, its certificate chain, and the root CA certificate.
<?php // This example assumes 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"); // We're getting the SSL/TLS certificate, so make sure to connect to the SSL/TLS port (443). // sslCert is a Chilkat.Cert $sslCert = $http->GetServerSslCert('nationalgeographic.com',443); if ($http->LastMethodSuccess == 0) { print $http->LastErrorText . "\n"; exit; } // Note: Prior to v9.5.0.50, this method would fail if the certificate chain could not // be completed to the root. Starting in v9.5.0.50, the incomplete certificate chain // will be returned. The certificate chain's ReachesRoot property can be examined to // see if the chain was completed to the root. // certChain is a Chilkat.CertChain $certChain = $sslCert->GetCertChain(); if ($sslCert->LastMethodSuccess == 0) { print $sslCert->LastErrorText . "\n"; exit; } $i = 0; $numCerts = $certChain->NumCerts; while ($i < $numCerts) { // cert is a Chilkat.Cert $cert = $certChain->GetCert($i); print 'SubjectDN ' . $i . ': ' . $cert->SubjectDN . "\n"; print 'IssuerDN ' . $i . ': ' . $cert->IssuerDN . "\n"; $i = $i + 1; } // If the certificate chain reaches the root CA cert, then the last cert in the chain // is the root CA cert. if ($certChain->ReachesRoot == 1) { // caCert is a Chilkat.Cert $caCert = $certChain->GetCert($numCerts - 1); print 'CA Root Cert: ' . $caCert->SubjectDN . "\n"; } ?> |
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