<?php
class Test {

    private $_data;
    private $_url = 'http://localhost/api/index.php?r=api/test';

    public function __construct() {
            $this->init();
    }

        public function init() {
            $this->_data = $this->getData();
        }

    public function print_response() {
            print_r($this->_geturl($this->_url, $this->_data, 'POST'));
    }

    private function getData() {
            return file_get_contents('data.txt');
    }

    private function _geturl( $url, $data_string = null, $type = 'GET', $javascript_loop = 0, $timeout = 300 ){
        $url = str_replace( "&amp;", "&", urldecode(trim($url)) );
        //$cookie = tempnam ("/tmp", "CURLCOOKIE");
        //$cookie = 'd:\tmp\CURLCOOKIE';

        $ch = curl_init();
        curl_setopt( $ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; rv:1.7.3) Gecko/20041001 Firefox/0.10.1" );
        curl_setopt( $ch, CURLOPT_URL, $url );
            curl_setopt( $ch, CURLOPT_HEADER, false);
        //curl_setopt($ch, CURLOPT_COOKIEJAR, $cookie);
        //curl_setopt($ch, CURLOPT_COOKIEFILE, $cookie);
        curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, true );
        curl_setopt( $ch, CURLOPT_ENCODING, "UTF-8" );
        curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
        curl_setopt( $ch, CURLOPT_AUTOREFERER, true );
        curl_setopt( $ch, CURLOPT_SSL_VERIFYPEER, false );    # required for https urls
        curl_setopt( $ch, CURLOPT_CONNECTTIMEOUT, $timeout );
        curl_setopt( $ch, CURLOPT_TIMEOUT, $timeout );
        curl_setopt( $ch, CURLOPT_MAXREDIRS, 10 );
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $type);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array(
        'Content-Type: application/json',
        'Content-Length: ' . strlen($data_string))
        );

        $content = curl_exec( $ch );
        //$response = curl_getinfo( $ch );
        curl_close ( $ch );

        return $content;
    }
}

$test = new Test();
$test->print_response();