header("Content-Type: text/html; charset=utf-8");
 
function getInfo($URL){
  $getInfo= get_meta_tags($URL);
  return $getInfo;
}
 
$URL = "http://www.facebook.com";
 
$_getInfo = getInfo($URL);
 
     echo "$URL <p>";
     echo $_getInfo["author"]."<p>";   
     echo $_getInfo["keywords"]."<p>";    
     echo $_getInfo["description"]."<p>"; 
     echo $_getInfo["robots"]."<p>";