PHP: Wrap some native "language constructs".
PHP: Wrap some native "language constructs".

Common ones which can't be called otherwise.
Can now be reached via php/exit, php/print, php/require.

Fixes chr15m/frock#7

foresterre/mal,foresterre/mal,foresterre/mal,foresterre/mal,foresterre/mal,foresterre/mal,foresterre/mal,foresterre/mal,foresterre/mal,foresterre/mal,foresterre/mal,foresterre/mal,foresterre/mal,foresterre/mal,foresterre/mal,foresterre/mal,foresterre/mal