sample ajax method

Users.php

class Users{

	public function xhr_contactList(){
  	
	//make a curl call
	$url = https://www.namesilo.com/api/contactList?version=1&type=json&key=12345
	//response
	$result = $this->_http_get($url);
	
	$return = json_decode($result);

	echo $return;
	
	

	}
	
	private function _http_get($url) {

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array());
        curl_setopt($ch, CURLOPT_VERBOSE, 1);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

        $response = curl_exec($ch);
        curl_close($ch);

        return $response;
    }


}