Description:
------------
(first of all sorry; I'm not sure if affected package is correct)

Usage of parser tokens results in a undefined constant notice since (at least) 7.1.5 on Alpine Linux.

alpine:3.5 is working fine, aline:3.6 and :edge are causing problems. 

---------

FROM alpine:edge

RUN apk add --no-cache php7

RUN php7 -v
RUN php7 -m
RUN php7 -r 'var_dump(T_ECHO);'
RUN php7 -r 'var_dump(T_PRINT);'

---------

Step 3/6 : RUN php7 -v
 ---> Running in 17cb9b5034d5
PHP 7.1.7 (cli) (built: Jul 19 2017 03:13:06) ( NTS )
Copyright (c) 1997-2017 The PHP Group
Zend Engine v3.1.0, Copyright (c) 1998-2017 Zend Technologies
 ---> e0fb51b72d87
Removing intermediate container 17cb9b5034d5
Step 4/6 : RUN php7 -m
 ---> Running in 0865a247ab4d
[PHP Modules]
Core
date
filter
hash
libxml
pcre
readline
Reflection
SPL
standard

[Zend Modules]

 ---> 1d44b74e76e0
Removing intermediate container 0865a247ab4d
Step 5/6 : RUN php7 -r 'var_dump(T_ECHO);'
 ---> Running in b1a53a02f747
PHP Notice:  Use of undefined constant T_ECHO - assumed 'T_ECHO' in Command line code on line 1
string(6) "T_ECHO"
 ---> 0c783b3043b5
Removing intermediate container b1a53a02f747
Step 6/6 : RUN php7 -r 'var_dump(T_PRINT);'
 ---> Running in c3d7f000fdac
string(7) "T_PRINT"
PHP Notice:  Use of undefined constant T_PRINT - assumed 'T_PRINT' in Command line code on line 1


Test script:
---------------
var_dump(T_PRINT);

Expected result:
----------------
int(266)

Actual result:
--------------
string(7) "T_PRINT"
PHP Notice:  Use of undefined constant T_PRINT - assumed 'T_PRINT' in Command line code on line 1