Try this code, haven't tested but should work.
<?php $link=mysql_connect ( "mysite","username","password") or die("");
$dbLink=mysql_select_db('database',$link) or die("");
$dbresult = mysql_query("select url from flash_sites",$dbLink) or die("*");
$status="No Match Found";
while($url=mysql_fetch_array($dbresult)){
if($url[url] == $current) $status="Match Found";
}
print("$status");
?>