I got several directories named x1,x2,x3 and so on.

I want to extract every directory except x2, but it dosn't work in PHP4. I tried in PHP3 and it works

<? $d=dir("."); 
    while ($filename=$d->read()) { 
      if (is_dir($filename) && $filename!='x2') { 
        echo "$filename\n"; 
      } 
    } 
?> 

Thanks in advance,
Lasse