Basic RESTful API Beispiel Verwendung von PHP

Ich bin daran eine grundlegende RESTful-API-Beispiel. Derzeit bin ich mit dem Beispiel, das ich gefunden hier aber es hat einige Fehler und ist unvollständig.

Hab ich schon Hinzugefügt, die folgenden Zeilen in meine .htaccess als Beispiel angegeben.

<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule api/v1/(.*)$ api/v1/MyAPI.php?request=$1 [QSA,NC,L]
</IfModule>

Mein problem ist aber immer die konkrete Klasse von mir, um zu drucken "12". Ich weiß nicht, welche URL zu besuchen, um zu bekommen die Meldung "12", um auf dem Bildschirm angezeigt werden.

Hier ist meine abstrakte Klasse code:

<?php
abstract class API 
{
    /** 
     * Property: method
     * The HTTP method this request was made in, either GET, POST, PUT or DELETE
     */
    protected $method = ''; 
    /** 
     * Property: endpoint
     * The Model requested in the URI. eg: /files
     */
    protected $endpoint = ''; 
    /** 
     * Property: verb
     * An optional additional descriptor about the endpoint, used for things that can
     * not be handled by the basic methods. eg: /files/process
     */
    protected $verb = ''; 
    /** 
     * Property: args
     * Any additional URI components after the endpoint and verb have been removed, in our
     * case, an integer ID for the resource. eg: /<endpoint>/<verb>/<arg0>/<arg1>
     * or /<endpoint>/<arg0>
     */
    protected $args = Array();
    /** 
     * Property: file
     * Stores the input of the PUT request
     */
     protected $file = Null;

    /** 
     * Constructor: __construct
     * Allow for CORS, assemble and pre-process the data
     */
    public function __construct($request) {
        header("Access-Control-Allow-Orgin: *"); //any origin can be processed by this page
        header("Access-Control-Allow-Methods: *"); //any HTTP method can be accepted
        header("Content-Type: application/json");

        $this->args = explode('/', rtrim($request, '/'));
        $this->endpoint = array_shift($this->args);
        if (array_key_exists(0, $this->args) && !is_numeric($this->args[0])) {
            $this->verb = array_shift($this->args);
        }

        $this->method = $_SERVER['REQUEST_METHOD'];
        if ($this->method == 'POST' && array_key_exists('HTTP_X_HTTP_METHOD', $_SERVER)) {
            if ($_SERVER['HTTP_X_HTTP_METHOD'] == 'DELETE') {
                $this->method = 'DELETE';
            } else if ($_SERVER['HTTP_X_HTTP_METHOD'] == 'PUT') {
                $this->method = 'PUT';
            } else {
                throw new Exception("Unexpected Header");
            }
        }

        switch($this->method) {
        case 'DELETE':
        case 'POST':
            $this->request = $this->_cleanInputs($_POST);
            break;
        case 'GET':
            $this->request = $this->_cleanInputs($_GET);
            break;
        case 'PUT':
            $this->request = $this->_cleanInputs($_GET);
            $this->file = file_get_contents("php://input");
            break;
        default:
            $this->_response('Invalid Method', 405);
            break;
        }
    }

    /**
     * Determine if the concrete class implements a method for the endpoint that the client requested. If it does, then it calls that method, otherwise a 404 
     * response is returned
     */
    public function processAPI() {
        if ((int)method_exists($this->endpoint) > 0) {
            return $this->_response($this->{$this->endpoint}($this->args));
        }
        return $this->_response('', 400);
    }

    private function _response($data, $status = 200) {
        header("HTTP/1.1 " . $status . " " . $this->_requestStatus($status));
        return json_encode($data);
    }

    private function _cleanInputs($data) {
        $clean_input = Array();
        if (is_array($data)) {
            foreach ($data as $k => $v) {
                $clean_input[$k] = $this->_cleanInputs($v);
            }
        } else {
            $clean_input = trim(strip_tags($data));
        }
        return $clean_input;
    }

    private function _requestStatus($code) {
        $status = array(
            100 => 'Continue',
            101 => 'Switching Protocols',
            200 => 'OK',
            201 => 'Created',
            202 => 'Accepted',
            203 => 'Non-Authoritative Information',
            204 => 'No Content',
            205 => 'Reset Content',
            206 => 'Partial Content',
            300 => 'Multiple Choices',
            301 => 'Moved Permanently',
            302 => 'Found',
            303 => 'See Other',
            304 => 'Not Modified',
            305 => 'Use Proxy',
            306 => '(Unused)',
            307 => 'Temporary Redirect',
            400 => 'Bad Request',
            401 => 'Unauthorized',
            402 => 'Payment Required',
            403 => 'Forbidden',
            404 => 'Not Found',
            405 => 'Method Not Allowed',
            406 => 'Not Acceptable',
            407 => 'Proxy Authentication Required',
            408 => 'Request Timeout',
            409 => 'Conflict',
            410 => 'Gone',
            411 => 'Length Required',
            412 => 'Precondition Failed',
            413 => 'Request Entity Too Large',
            414 => 'Request-URI Too Long',
            415 => 'Unsupported Media Type',
            416 => 'Requested Range Not Satisfiable',
            417 => 'Expectation Failed',
            500 => 'Internal Server Error',
            501 => 'Not Implemented',
            502 => 'Bad Gateway',
            503 => 'Service Unavailable',
            504 => 'Gateway Timeout',
            505 => 'HTTP Version Not Supported');
        return ($status[$code])?$status[$code]:$status[500];
    }
}

Und hier ist meine konkrete Klasse code (Probleme auf Linie 8):

<?php
require_once 'API.php';
class MyAPI extends API 
{
    protected $User;

    public function __construct($request, $origin)
    {
        echo "12";
        parent::__construct($request);

        //Abstracted out for example
        //$APIKey = new Models\APIKey();
        //$User = new Models\User();

        if (!array_key_exists('apiKey', $this->request)) {
            throw new Exception('No API Key provided');
        } else if (!$APIKey->verifyKey($this->request['apiKey'], $origin)) {
            throw new Exception('Invalid API Key');
        } else if (array_key_exists('token', $this->request) && !$User->get('token', $this->request['token'])){
            throw new Exception('Invalid User Token');
        }

        //$this->User = $User;
    }   

    /** 
     * Example of an Endpoint
     */
    protected function example()
    {
        if ($this->method == 'GET') {
            return "Your name is " . $this->User->name;
        } else {
            return "Only accepts GET requests";
        }
    }   
}

Wie Sie sehen können, die Linie 8 auf die konkrete Klasse (im Konstruktor) wird nie gedruckt. Derzeit bin ich versucht zu machen, meinem Beispiel funktionieren, indem Sie:

www.mysite.com/api/myAPI.php?request=get