Check the version of TLS - PHP

gistfile1.txt

<?php

$curl_version = curl_version();
echo 'You are using this version of SSL Version: ' . $curl_version['ssl_version'] . "\n";
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "https://api.mercadopago.com/sites/MLB/payment_methods");
curl_setopt($ch, CURLOPT_SSLVERSION, 6);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
if($response) { 
    if (isset($response[0])) {
        echo "= Conected"; 
    }
} else { 
    echo $response; 
}