[WordPress] Class Serialization with PHP

00-name-property.php

<?php

class Acme implements JsonSerializable 
{
  /**
   * @var string the name of the model as represented on the front-end.
   */
  protected $name;
  
  // More code here.
  
  /**
   * @return string a JSON representation of this class
   */
  public function jsonSerialize()
  {
      return [
        'name' => $this->getName()
      ];
  }
}

01-additional-properties.php

<?php

class Acme implements JsonSerializable 
{
  /**
   * @var string the name of the model as represented on the front-end.
   */
  protected $name;
  
  /**
   * @var array an array of features about this object.
   */
  protected $features;
  
  // More code here.
  
  /**
   * @return string a JSON representation of this class
   */
  public function jsonSerialize()
  {
      return [
        'name' => $this->getName(),
        'features' => [
          'hair' => $this->getHairColor(),
          'eyes' => $this->getEyeColor(),
         ],
      ];
  }
}

02-acme-serializable.php

<?php

class Acme implements JsonSerializable 
{
  /**
   * @var string the name of the model as represented on the front-end.
   */
  protected $name;
  
  /**
   * @var array an array of features about this object.
   */
  protected $features;
  
  // More code here.
  
  /**
   * @return string a JSON representation of this class
   */
  public function jsonSerialize()
  {
      $objectArray = [];
      foreach ($this as $key => $value) {
          $objectArray[$key] = $value;
      }

      return $objectArray;
  }
}