omitting T_CLOSE_TAG

Hi, I am searching for some evidence in the PHP source code that the possibility of omitting the closing PHP tag is absolutely intentional, and in fact part of the language syntax, and therefore it is going to be supported indefinitely. Digging for T_CLOSE_TAG and similar stuff have lead me to nothing. Actually I would like to clarify and possibly extend the note on page: http://php.net/manual/en/basic-syntax.instruction-separation Also if you have any positive notes on not using the closing tag (or any negative thereof :), please do let me know. Thanks, Goba (PHP Documentation Editor)