Foursquare API only works locally - php

Question

I built an application on top of the foursquare API. It works perfectly on localhost but as soon as I upload it to a public website it stops working. I have checked to see if php is working by placing simple echos throughout my code and have had no issues. On my localhost I am able to echo information from the JSON the foursquare generates. When it is on the public server it echos nothing.
$urlgen = "https://api.foursquare.com/v2/venues/search?near={$city}&query={$query}&client_id={$client_id}&client_secret={$client_secret}&v=20141015";
$resultFour = fetchData($urlgen);
echo "$resultFour";
This works code returns JSON on localhost but not on the website.
Fetch Data:
function fetchData($url){
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 20);
$result = curl_exec($ch);
curl_close($ch);
return $result;
}

Answer 1

Check if your public server has curl installed (i assume that fethData use curl to connect to server). If you are sure that it is installed. For me works code:
private function fetchUrl($url)
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 20);
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
$feedData = curl_exec($ch);
curl_close($ch);
return $feedData;
}