$filename = explode(",", $filename);
  $max  = sizeof($filename);
  $count=0

  foreach ($temp as $value)
  {
   for ( $i=0 ; $i<$max ; $i++ )
   {
    if ( eregi($filename[$i],$value) ){
     echo $value."<br>";
     $count++;
    }
   }
  }
  return $count;
 }

$chk = filelist("abc","88");
if ( $chk == 0 )
 echo "999.jpg";