Curl CLose is not a Valid CURL Handle

[aufa]

I was try with the example of the git,
everythings is okay, but when I try to close the cURL , Always get the errors.

Warning: curl_close(): 4 is not a valid cURL handle resource in Curl.class.php on line 158

I try this simple code

<?php
require_once 'Curl.class.php';
$l = 'abcdef';
$b= 'defgh';

$curl = new Curl();
$curl->setUserAgent('');
$curl->setReferrer('');
$curl->post('http://localhost/testlink.php', array(
            'l' => $l,
            'b' => $b,
));
if ($curl->error) {
    echo $curl->error_code;
}
else {
    print_r($curl->response);
}
$curl->close(); // this will be thrown error, though I try to close with curl_close($curl->curl)

any help?

[zachborboa]

Thanks for the report!