abstract-base.php

<?php

namespace Cavy\Model\DTO;


abstract class AbstractBase implements Base {

    /**
     * @return array
     */
    public function toArray() {

        // NOTE: function($value, $key) is the right order.
        $arr = array_filter(get_object_vars($this), function($value, $key) {

            if (is_array($value)) {
                return true;
            }

            if ($key === 0 || $value === 0) {
                return true;
            }

            if ($key === false || $value === false) {
                return true;
            }

            if (!isset($value) || is_null($value) || $value == null) {
                return false;
            }

            if (!isset($key) || is_null($key) || $key == null) {
                return false;
            }

            return true;

        }, ARRAY_FILTER_USE_BOTH);

        return $arr;

    }

     private function _snakeToCamel($val) {
        $val = str_replace(' ', '', ucwords(str_replace('_', ' ', $val)));
        $val = strtolower(substr($val,0,1)).substr($val,1);
        return $val;
     }

    /**
     * @param $json mixed The JSON string to be hydrated
     */
    public function hydrate($json) {

        $arr = $json;
        if (!is_array($arr)) {
            $arr = json_decode($json, true);
        }

        foreach($arr as $key => $value) {
            $method = 'set' . ucfirst($this->_snakeToCamel($key));
            if(is_callable(array($this, $method))) {
                call_user_func(array($this, $method), $value);
            }
        }

    }

}