Dump the SQLCipher version in PHP

sqlcipher.php

<?php

try {
  $db = new SQLite3("demo.db");
  $version = $db->query("PRAGMA cipher_version");
  if($version){
    var_dump($version->fetchArray());
  } else {
    throw new Exception($db->lastErrorMsg());
  }
  $db->close();
}
catch (Exception $e){
  echo "Exception", $e->getMessage(), "\n";
}

?>

Nick, I've noted you've helped lots of people with SQLCipher and PHP issues, so I humbly come to you in the hope that you can provide me some guidance as well. I need to implement SQLite encryption in a x64 Windows Apache/PHP installation. I've managed to compile PHP and SQLCipher separately (using both VS2015 and MinGW-w64), but I don't know what to do to integrate them both. If I try to simply replace the original PHP files with those generated by SQLCipher's, I get a compilation error ("undefined struct sqlite3_mutex"). Can you point me in any direction? Thanks!