Error trying to use Magento API SOAP 1.9

Question

I’m trying to consume Magento’s SOAP API through the examples shown in documentation of the People themselves, but I’m getting the following error:

Fatal error: Uncaught Soapfault Exception: [WSDL] SOAP-ERROR: Parsing WSDL: Couldn’t load from 'http://magestore.local/api/soap/? wsdl=1' in /var/www/magestore.local/api/test.php on line 15

My script:

<?php

ini_set('soap.wsdl_cache_enabled', '0');
ini_set('soap.wsdl_cache', '0');

$store_url = 'http://magestore.local';
$wsdl_url = $store_url . '/api/soap/?wsdl=1';
$apiUser = 'user-test';
$apiKey = 'test123';

echo "<p>WSDL URL: {$wsdl_url}</p>";

$proxy = new SoapClient($wsdl_url);

$sessionId = $proxy->login($apiUser, $apiKey);

var_dump($sessionId);

Can anyone tell me where I’m going wrong?

And if you have any tutorial that can help me in my learning, I will be very grateful!