(PHP ActiveX) Extract XML from FatturaPA .p7m

Demonstrates how to verify the signature and extract the XML from a FatturaPA .p7m file.

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.BinData')
$bd = new COM("Chilkat.BinData");
$success = $bd->LoadFile('qa_data/p7m/IT01879020517_abc.xml.p7m');
if ($success != 1) {
    print 'Failed to load the .p7m file' . "\n";
    exit;
}

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Crypt2')
$crypt = new COM("Chilkat.Crypt2");

// Verify and extrct the payload contained within the .p7m.
// In this case, the payload is the FatturaPA XML.
// If successful, the resulting bd will contain only the XML.
$bVerified = $crypt->OpaqueVerifyBd($bd);
if ($bVerified != 1) {
    print $crypt->LastErrorText . "\n";
    print 'Failed to extract and verify.' . "\n";
    exit;
}

// Save the XML to a file.
$bd->WriteFile('qa_output/zIT01879020517_abc.xml');

// Alternatively, load into an XML object and emit.
// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Xml')
$xml = new COM("Chilkat.Xml");
$xml->LoadXml($bd->getString('utf-8'));

print $xml->getXml() . "\n";

?>