Sample code for 30+ languages & platforms
PHP Requires Chilkat v11.4.0+

Example: Mime.GetDecryptCertInfo method

Demonstrates the GetDecryptCertInfo method.

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Chilkat2 PHP
<?php

use Chilkat2\JsonObject;
use Chilkat2\Mime;

$mime = new Mime();

// Load MIME that is has Content-Type like this:
// Content-Type: application/pkcs7-mime; smime-type="enveloped-data"; name="smime.p7m"; smime-type="enveloped-data"
try {
    $mime->LoadMimeFile('qa_data/mime/enveloped_data.eml');

    // Get information about the certificate that would be needed to decrypt.
    // An enveloped-data can potentially be decrypted by multiple certificates if it was encrypted in a way that allows it,
    // but in most cases, only a single certificate with associated private key (that of the message recipient) is possible.
    $json = new JsonObject();
    $mime->GetDecryptCertInfo($json);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

$json->EmitCompact = false;
echo $json->Emit(), "\n";

// Sample output:

// {
//   "recipientInfo": [
//     {
//       "serial": "****",
//       "issuerCN": "****"
//     }
//   ]
// }

// Get each certificate's information like this:
$serial = '';
$issuerCN = '';

$i = 0;
$count = $json->SizeOfArray('recipientInfo');
while ($i < $count) {
    $json->I = $i;
    $serial = $json->StringOf('recipientInfo[i].serial');
    $issuerCN = $json->StringOf('recipientInfo[i].issuerCN');
    $i = $i + 1;
}