Add PHP 7.1 to tested versions in Travis

[jorbin]

Nightly is testing the 7.1 dev branch which isn't up to date, while listing 7.1 explicitly tests beta2.

[jorbin]

​this run demonstrates that listing 7.1 does so with the beta. Also shows a bunch of errors that we need to fix.

[ocean90]

Replying to jorbin:

Also shows a bunch of errors that we need to fix.

Not sure I agree here. 🙂 I don't want that we're going to fix anything until it's 100% clear that PHP will ship the current changes, see #37295 for more. If they do, < 4.7 wouldn't be compatible with 7.1 so we don't have to add it to the test matrix.

[jorbin]

In 38273:

Build/Test Tools: Ensure PHP 7.1 is tested on Travis.

PHP 7.1 is the next version of PHP and WordPress should support it with the first major version after 7.1 launches. This will facilitate testing. Failures on 7.1 won't necessitate builds failing while 7.1 is still in beta.

Fixes #37625.

[ocean90]

@jorbin Looks like the PHP 7.1 setup is broken since ​https://travis-ci.org/aaronjorbin/develop.wordpress/jobs/155607823:

/home/travis/build.sh: line 45: 3777 Bus error (core dumped) grunt $WP_TRAVISCI

Can you take a look?

[jorbin]

In 39424:

Build/Test Tools: Remove PHP 7.1 from allowed failures

PHP 7.1 has been officially released. ​http://php.net/archive/2016.php#id2016-12-01-3

See #37625
Props helen, pento, The PHP team

[jorbin]

In 39425:

Build/Test Tools: Remove PHP 7.1 from allowed failures

[39424] for 4.7

:tada: PHP 7.1 has been officially released. ​http://php.net/archive/2016.php#id2016-12-01-3

See #37625
Props helen, pento, The PHP team