Description:
------------
I've been waitning for the version 5 of PHP. and I've been actually preparing for the next major release of PHP like this:

<?php
class SiteBase {
    function __construct() { // do something }

    // for PHP 4.x
    function SiteBase() { $this->__construct(); }

    // public
    function Show() { ... }

    // private
    function IsRoot() { ... }
} // end class
?>

and because public, private or protected modifiers are not yet keywords in 4.x so I had to comment them every time.

But I think it would be better if the PHP 4.x just can recognise them as keywords but do nothing for them. I mean they can be "reserved" for the next version of PHP.

Expected result:
----------------
<?php
class PHP5Class { // but it will work in PHP4 too.
    public $Var1;
    private $Var2;
    protected $var3; // works in PHP4 but the modifier 'protected' will be ignored and replaced with 'var' and so on.

     // 'static' or 'final' also ingored in PHP 4
    static protected function F1() { ... }
   
    // but this should not be permitted because the name 'protected' is reserved
    function protected() { ... }

}
?>