Convert php object to json in nodejs

php2json.js

function PHP2JSON(phpFilePath) {
  return new Promise(function(resolve, reject) {
    childProcess.exec(
      'php -r \'include("' + phpFilePath + '"); print json_encode($php_object);\'',
      function(err, stdout, stderr) {
        if (err) {
          console.log(err)
          return
        }
        resolve(JSON.parse(stdout))
      }
    )
  })
}