As in C or Perl, PHP requires instructions to be separated
with a semicolon at the end of each statement. The closing tag
of a block of PHP code automatically implies a semicolon; you
do not need to have a semicolon terminating the last line of a
PHP block. The closing tag for the block will include the immediately
trailing newline if one is present.
Note:
The closing tag of a PHP block at the end of a file is optional,
and in some cases not using it is helpful when using output buffering and
include() or require().
Basic syntax