Codeigniter Response Library

response.php

<?php if (!defined('BASEPATH')) { exit('No direct script access allowed'); }
/**
* Response utility
*
* @author budy
*/
class Response
{
    private $obj = null;

    public function __construct()
    {
        $this->obj = & get_instance();
    }

    /**
    * This method will set numerical value to float/int
    * while keeping the zeroleading numerical string
    * Example: 09178181 will stay so,
    * This is a replacement for json constant JSON_NUMERIC_CHECK
    * that remove leading zero on a numeric string
    * @param array|object $data
    * @return array
    */
    public function keepZeroLeading($data)
    {
        // make sure if its an object, convert it to Array first
        $data = json_decode(json_encode((object) $data), true);

        try {
            array_walk_recursive($data, function (&$value, $key) {
                if (is_string($value) && is_numeric($value)) {
                    // check if value starts with 0 or + or just 0
                    // example: 0819, +62871 etc
                    if (preg_match('/^(\+|0)/', $value)) {
                        //if its not a float/decimal
                        if (strpos($value, ".") === false) {
                            if ($value === '0') {
                                $value = (float)$value;
                            } else {
                                $value = (string)$value;
                            }
                        } else {
                            $value = (float)$value;
                        }
                    } else {
                        //if has letters
                        if (preg_match("/[a-z]/i", $value)) {
                            $value = (string)$value;
                        } else {
                            //if . found, its a float
                            if (strpos($value, ".") === false) {
                                $value = (int)$value;
                            } else {
                                $value = (float)$value;
                            }
                        }
                    }
                }
            });
        } catch (Exception $e) {
            //..
        }

       return $data;
    }

    /**
    * @param array $data
    * @param $zeroleading,
    * @return output
    */
    public function json($data, $zeroleading = true)
    {
        if ($zeroleading) {
          $data = $this->keepZeroLeading($data);
        }

        // its encouraged we upgrade the PHP version to 7+
        // or atleast version 5.6.6
        if (version_compare(PHP_VERSION, '5.6.6') >= 0) {
            $output = json_encode($data, JSON_PRESERVE_ZERO_FRACTION);
        } else {
            $output = json_encode($data);
        }

        return $this->obj->output
            ->set_content_type('application/json', 'utf-8')
            ->set_status_header(200)
            ->set_output($output);
    }

    /**
    * Forbidden response
    */
    public function forbidden()
    {
        $output = json_encode([
          'status'  => false,
          'message' => 'Not authorized',
          'error'   => 'You are not authorized'
        ]);

        return $this->obj->output
            ->set_content_type('application/json', 'utf-8')
            ->set_status_header(200)
            ->set_output($output);
    }

}