url link code

[pietbez]

i have a code that validates links being posted by users.

 

one problem. it wont alow me to post links with "-" in the url.  like,  www.music-zone.com

 

it gives this error: Only alphanumeric characters allowed in domain names

 

i think it is in this code

 

please help

 

function parseLink($link){
  $err="";
  if(substr($link, 0, 7) == "http://") {
$rest = substr($link, 7);
$proto = "http://";	
  } elseif(substr($link, 0, 6) == "ftp://") {
    $rest = substr($link, 6);
    $proto = "ftp://";
  }	else {
   $err .= "Unknown protocolol. Supported protocol are http:// and ftp://</br >";
  }
  $link_part = explode("/", $rest, 2);
  if(strpos($link_part[0], ".")===false){
$err .= "Unknown domain. It's necessary to type domain names in standard way (ex. google.com, sourceforge.org)<br />";
  } else {
    $subdomains = explode(".", $link_part[0]);
$csd = count($subdomains);
for($i=0; $i<$csd; $i++){
  if(!ctype_alnum($subdomains[$i])){
    $err .= "Only alphanumeric characters allowed in domain names<br />";
	break;
  }
}
  }

[BlueSkyIS]

instead of

if(!ctype_alnum($subdomains[$i])){

 

try this:

 

if(!reg_match('/^[a-z0-9\-]+$/iD',$subdomains[$i])){

 

untested...

[pietbez]

i tried this, but no luck.

still getting the same results. any other ideas?