<?PHP
function strrevpos($instr, $needle)
{
        $rev_pos = strpos (strrev($instr), strrev($needle));
        if ($rev_pos===false) return false;
        else return strlen($instr) - $rev_pos - strlen($needle);
}
function after_last ($this, $inthat)
{
        if (!is_bool(strrevpos($inthat, $this)))
        return substr($inthat, strrevpos($inthat, $this)+strlen($this));
}
function finddir($v)
{
        return substr($v,0,strpos($v,after_last('/', $v)));
}
echo finddir($_SERVER['SCRIPT_NAME']);
?>