Make use of use View as Markdown

There currently is a keyword "use" in the engine, reserved for future
use:

1.1 (zeev 29-Oct-00): | T_USE [...]

With all the discussions about errors and ini settings, why not use use
to put PHP into different modes on a per-script-basis?

Some ideas that came to my head:

• use strict;
  => bail on undefined string- / array offsets / undeclared variables?

• use exceptions;

• use error::mode(exceptions, E_ALL);

• use error::mode(exceptions, E_WARNING);
  => Use exceptions instead of zend_error

• use sybase::magic_quotes;
  => Enable feature

• use ini::default_mime_type('text/xml');
  => Use it to set PHP_INI_ALL entries

• use oop::implicit_clone;
  => Activate BC features

• use lang::float_seperator(',');
  => Change EG(float_seperator)

• use oop('php', *);
  => Declare we want to use (import) the built-in classes

• use error::handler('my_error_handler');
  => Replace set_error_handler()

• use globals;
  => Auto-populate $_* variables

...

• Timm