(PHP Extension) Get Public Key from Certificate PEM

Loads a certificate from a PEM file and gets the cert's public key.

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?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");

$cert = new CkCert();

$success = $cert->LoadFromFile('qa_data/certs/someCert.pem');
if ($success != true) {
    print $cert->lastErrorText() . "\n";
    exit;
}

// Get the certificate's public key:
// pubkey is a CkPublicKey
$pubkey = $cert->ExportPublicKey();
if ($cert->get_LastMethodSuccess() != true) {
    print $cert->lastErrorText() . "\n";
    exit;
}

print $pubkey->getPem(false) . "\n";

// OK.. we have the public key which can be used in other Chilkat classes/methods...


?>