How to use WhichBrowser as a library??

@waptik

File: APPPATH/libraries/Which_browser.php

Code:

<?php defined('BASEPATH') OR exit('No direct script access allowed.');

/**
* @author Ivan Tcholakov <[email protected]>, 2016
* @license The MIT License, http://opensource.org/licenses/MIT
*/

class Which_browser {

    protected $php_min = '5.4';

    protected $wb_parser;

    protected $with_clause = false;
    protected $wb_parser_2;

    public function __construct($config = array()) {

        if (!is_php($this->php_min)) {
            throw new Exception('Which_browser: Requires PHP '.$this->php_min.' or above.');
        }

        // A special code fragment for @waptik.
        // Better remove it and rely on Composer.
        if (!class_exists('WhichBrowser\Parser', true)) {
            require_once APPPATH.'third_party/Parser-2.0.16/bootstrap.php';
        }
        //

        $this->initialize($config);
    }

    public function initialize($config = array()) {

        if (!is_array($config)) {
            $config = array();
        }

        $raw_info = isset($config['raw_info']) && is_array($config['raw_info'])
            ? $config['raw_info']
            : array();

        if (empty($raw_info)) {

            if (function_exists('getallheaders')) {
                $raw_info = getallheaders();
            } else {
                $raw_info = isset($_SERVER['HTTP_USER_AGENT'])
                    ? $_SERVER['HTTP_USER_AGENT']
                    : array();
            }
        }

        //$this->wb_parser = new WhichBrowser\Parser($this->_get_raw_info($raw_info));
        // Still keeping the PHP 5.2 syntax:
        $reflection = new ReflectionClass('WhichBrowser\Parser');
        $this->wb_parser = $reflection->newInstance($raw_info);

        return $this;
    }

    // Normal usage:
    // $this->load->library('which_browser');
    // $result = $this->which_browser->get();
    // echo $result->toString();
    public function get() {

        if ($this->with_clause) {

            $this->with_clause = false;
            return $this->wb_parser_2;
        }

        return $this->wb_parser;
    }

    // Usage for testing, an alternative parser is initialized in this case.:
    // $this->load->library('which_browser');
    // $result = $this->which_browser->with(getallheaders())->get();
    // echo $result->toString();
    public function with($raw_info = array()) {

        if (!is_array($raw_info)) {
            $raw_info = array();
        }

        $this->with_clause = true;

        //$this->wb_parser_2 = new WhichBrowser\Parser($raw_info);
        // Still keeping the PHP 5.2 syntax:
        $reflection = new ReflectionClass('WhichBrowser\Parser');
        $this->wb_parser_2 = $reflection->newInstance($raw_info);

        return $this;
    }

}