PHP标记

PHP通常用下面的标记对（分隔符）区分。

需要注意的是php.ini中
; Allow the ? tag. Otherwise, only ?php and script> tags are recognized.
; NOTE: Using short tags should be avoided when developing applications or
; libraries that are meant for redistribution, or deployment on PHP
; servers which are not under your control, because short tags may not
; be supported on the target server. For portable, redistributable code,
; be sure not to use short tags.
short_open_tag = Off
; Allow ASP-style % %> tags.
asp_tags = Off