sample ip address logging class

logger.php

<?php

class Logger {
   public $db;
   public function __construct() {
	$this->db = $this->_conn('localhost','root','root','stats');
   }
   private function _conn($dbhost, $user,$pwd, $db) {
     try {
		return 	mysqli_connect($dbhost,$user,$pwd,$db);
     } catch( Exception $e) {
       die ('Could not connect to DB  ' . $e->getMessage());
     }
  }

   public function logvisit($servr = 'undefined') {
   $remoteaddr = $_SERVER['REMOTE_ADDR'];
   $details = json_decode(file_get_contents("http://ipinfo.io/{$remoteaddr}")); //free API to get country 
    $sql = "INSERT INTO logs(VisIP, VisRef, VisUrl, VisDate, VisAgent, VisCntry) VALUES (\"".$remoteaddr."\", \"".$servr."\", \"".$_SERVER['REQUEST_URI']."\", NOW(), \"".$_SERVER['HTTP_USER_AGENT']."\",\"". $details->country ."\")";
	mysqli_query($this->db, $sql);
   } 
}