Current page : any thought ?

[eL_NiNo]

Once again, more questions :

What's wrong with this code :

        $strPage = $_SERVER("PHP_SELF"); /*** Error here ***/
        $strScript;
        if($strScript = strstr($strPage, '/'))
        {
               $strPage = $strScript;
        };
        return $strPage; 

it gives me :

Notice: Array to string conversion in file.php on line X
Fatal error: Call to undefined function: array() in file.php on line X

Thanks in advance !