<?php
class Qr_polos extends MY_Controller
{
    public function __construct()
    {
        parent::__construct();
    }
    function pcr($nolab)
    {
        $img_qrcode = $this->post("http://localhost/charts/qrtext.php", $nolab);
        header("Content-type: image/png");
        echo $img_qrcode;
        exit;
    }
    public function post($url, $data)
    {
        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
        curl_setopt($ch, CURLOPT_TIMEOUT, 10);
        curl_setopt(
            $ch,
            CURLOPT_HTTPHEADER,
            array(
                'Content-Type: application/text',
                'Content-Length: ' . strlen($data)
            )
        );
        $result = curl_exec($ch);

        if (curl_error($ch) != "") {
            return "ERROR Accessing QrCode : " . curl_error($ch) . "\n";
        }
        curl_close($ch);
        return $result;
    }
}