(PHP ActiveX) Extract XML File from a .p7m (e.g. FATTURA ELETTRONICA, ITALY)

PHP ActiveX example to extract the original file from a .p7m (Signed-Data PKCS7 Format) The .p7m contains the signed contents of the original file.

One use for this example is to extract the XML file from a Fattura Elettronica .p7m signature.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

// This example requires 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.Crypt2')
$crypt = new COM("Chilkat.Crypt2");

$outputFile = 'testData/xml/original.xml';
$inFile = 'testData/p7m/fattura_signature.p7m';

// Verify the signature and extract the XML file.
$success = $crypt->VerifyP7M($inFile,$outputFile);
if ($success == 0) {
    print $crypt->LastErrorText . "\n";
    exit;
}

print 'Success!' . "\n";

?>