(PHP Extension) Extract XML from FatturaPA .p7m

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

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");

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

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

$crypt = new CkCrypt2();

// 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 != true) {
    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.
$xml = new CkXml();
$xml->LoadXml($bd->getString('utf-8'));

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

?>