Json serialization without dependencies

liteJsonTransform.php

<?php

abstract class Base {

	public function getPublicVars() {
		return call_user_func('get_object_vars', $this);
	}

}


class User extends Base implements \JsonSerializable {
  
  public $name;
  public $id;
  public $email;
  
  protected $company;

	public function jsonSerialize() {
		$userArray = $this->getPublicVars();
		
		//transform/add/remove anything you need here
		
		unset($userArray['name']);
		$userArray['username'] = $name;
		$userArray['companyId'] = $company->id;
		
		return $userArray;
	}

}