AbstractJSONWrapper.php

<?php
abstract class com_maileon_api_json_AbstractJSONWrapper {   
    function toArray() {
        $result = array();
        $object_vars = get_object_vars($this);
       
        // copy each of this objects properties to an associative array
        // indexed by the property names
        foreach($object_vars as $key => $value) {
            if($value == null) { continue; }
            
            // if $value is an object, we can call toArray on it, and it 
            // should be serialized (isEmpty returns true) than we call 
            // toArray and insert the result in our array; 
            // otherwise we insert the value as-is
            if(gettype($value) == "object" && 
             is_subclass_of($value, 'com_maileon_api_json_AbstractJSONWrapper')) {
                if(!$value->isEmpty()) {
                    $result[$key] = $value->toArray();
                }
            } else {
                // TODO: maybe deal with com_maileon_api_json_AbstractJSONWrapper
                // derived classes that have 'non-serializable' properties
                $result[$key] = $value;
            }
        }
        
        // return the resulting array
        return $result;
    }
    
    function fromArray($object_vars) {
        // copy each key to the property named the same way; if the property
        // is a serializable Maileon class, call fromArray on it
        foreach($object_vars as $key => $value) {
            if(class_exists('com_maileon_api_json_AbstractJSONWrapper') && is_subclass_of( $this->{$key},'com_maileon_api_json_AbstractJSONWrapper' )) {
                $this->{$key}->fromArray($value);
            } else {
                $this->{$key} = $value;
            }
        }
    }
      
    public function __toString() {
        $object_vars = get_object_vars($this);
        $elements = "";
        
        // add each property of this class to a string
        foreach($object_vars as $key => $value) {
            $elements .= $key . "=" . $value . ", ";
        }
        
        return get_class($this) . " [ " . mb_substr($elements, 0, mb_strlen($elements) - 2) . " ]";
    }
    
    function isEmpty() {
        return false;
    }
}