PHP

Clear the S/MIME Recipient Certificate List

Demonstrates ClearEncryptCerts, which empties the recipient-certificate list previously populated by AddEncryptCert. This is useful to start over with a different set of recipients before calling EncryptN.

Background. The recipient list is internal state that accumulates across AddEncryptCert calls. ClearEncryptCerts resets it so a subsequent EncryptN encrypts only for the certificates added afterward.

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Chilkat2 PHP

<?php

use Chilkat2\Cert;
use Chilkat2\Mime;

$mime = new Mime();
try {
    $mime->SetBodyFromPlainText('This message will be encrypted.');

    // Add a recipient certificate.
    $cert = new Cert();
    $cert->LoadFromFile('qa_data/recipient.cer');

    $mime->AddEncryptCert($cert);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

// ClearEncryptCerts empties the recipient-certificate list, for example to start over with a
// different set of recipients before calling EncryptN.  It is a void method.
$mime->ClearEncryptCerts();

echo "Recipient certificate list cleared.\n";