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Bug #72556 php using .xml file as source tries to execute header
Submitted: 2016-07-06 19:11 UTC Modified: 2016-07-10 15:08 UTC
From: jim dot michaels at Jesusnjim dot com Assigned: cmb (profile)
Status: Not a bug Package: Scripting Engine problem
PHP Version: 7.0Git-2016-07-06 (snap) OS:
Private report: No CVE-ID: None
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 [2016-07-06 19:11 UTC] jim dot michaels at Jesusnjim dot com 
Description:
------------
1. 7.1Git-2016-07-06 isn't even on your site - no dir for it.
2. php using .xml file as source tries to execute XML header because of <? and ?> but xml header says <?xml version='1.0' encoding='UTF-8'?>

don't blast me because they are not separate bugs please. you know what happens if too many are put in on the same day.

Test script:
---------------
<?xml version='1.0' encoding='UTF-8'?>

Expected result:
----------------
<?xml should be differentiated from <?php. in fact, it might be a lex priority issue where <? is lexed before <?php but XML and XHTML are not detected properly due to same problem. what is the header for XHTML 1.1/1.0? what about XHTML5? XHTML5.1? 5.2? see whatwg.org

php should completely ignore the xml file since there is no PHP in it. or so I had thought. and it's not just a simple .xml file extension detection, it's an ENBF change, yes?

Actual result:
--------------
Wed 07/06/2016 11:49:00.42|C:\w\Jesusnjim|>php menu7a.xml

Parse error: syntax error, unexpected 'version' (T_STRING) in C:\w\Jesusnjim\menu7a.xml on line 1

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 [2016-07-06 20:08 UTC] cmb@php.net
-Status: Open +Status: Not a bug -Assigned To: +Assigned To: cmb
 [2016-07-06 20:08 UTC] cmb@php.net 
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php

> 7.1Git-2016-07-06 isn't even on your site - no dir for it.

php.net does not package Git snapshots, as you can easily get them
yourself, see <http://php.net/git.php>.

> php using .xml file as source tries to execute XML header
> because of <? and ?> but xml header says <?xml version='1.0'
> encoding='UTF-8'?>

If you don't like that behavior, just disable short_open_tag, see
<http://php.net/manual/en/ini.core.php#ini.short-open-tag>.
 [2016-07-09 23:49 UTC] jim dot michaels at Jesusnjim dot com 
you blasted me. I asked you not to. too many bugs to handle? do you need prayer or something?
try 2 hours rest on your bed and see if things get better real fast, thinking about nothing in particular.
I forgive.

the problem here is in the EBNF and the way it detects those short tags. I had thought short-tags was deprecated or dropped from what I remember. 
try parsing these in order:
<?xml - ignore
<?php - process as PHP
<? - process as PHP
if you do short tags first, <?php will never see light of day for proper detection.
 [2016-07-10 15:08 UTC] cmb@php.net 
> I had thought short-tags was deprecated or dropped from what I
> remember.

No need for guessing, just read the docs[1]. :) If you wish that
short_open_tag will be deprecated and eventually completely
removed, please re-open and change this ticket to feature request.

[1] <http://php.net/manual/en/ini.core.php#ini.short-open-tag>
 
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