Test connection to WebSharks-Inc.com Pro Plugin Updater; result of running this file should be "{"error":"Missing `data`."}"

test-ws-connection.php

<?php
error_reporting(-1);
ini_set('display_errors', TRUE);

function curl_download($Url){

	// is cURL installed yet?
	if (!function_exists('curl_init')){
		die('Sorry cURL is not installed!');
	}

	// OK cool - then let's create a new cURL resource handle
	$ch = curl_init();

	// Now set some options (most are optional)

	// Set URL to download
	curl_setopt($ch, CURLOPT_URL, $Url);

	// Set a referer
	curl_setopt($ch, CURLOPT_REFERER, "http://www.example.org/yay.htm");

	// User agent
	curl_setopt($ch, CURLOPT_USERAGENT, "MozillaXYZ/1.0");

	// Include header in result? (0 = yes, 1 = no)
	curl_setopt($ch, CURLOPT_HEADER, 0);

	// Should cURL return or print out the data? (true = return, false = print)
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

	// Timeout in seconds
	curl_setopt($ch, CURLOPT_TIMEOUT, 10);

	// Download the given URL, and return output
	$output = curl_exec($ch);

	// Close the cURL resource, and free system resources
	curl_close($ch);

	return $output;
}

print curl_download("https://www.websharks-inc.com/products/update-sync.php");