[Solved] Splitting Query String

[brown monkey]

Dunno if my question meets my needs here.

I'm having problem with this code

    $code=$_GET['code'];
    echo $code;
    $col=split('.',$code);
    if($col[1]=='vb'){
        $h->vb_file("source/".$code);
    }
    else if($col[1]=='cs'){
        $h->csharp_file("source/".$code);
    }
    else if($col[1]=='php'){
        highlight_file("source/".$code);
    }

It echoes the $code (highlight.php) say I have showcode.php?code=highlight.php, but... it doesn't go through the if's. Am I missing something?