Yuriy Belenko e282a052bf
[php-slim4] Set required PHP version to 7.2 (#6530)
* Bump required PHP version to 7.2

* Update rest dependencies to meet php 7.2

Latest phpunit 9 requires PHP 7.3, so I've set phpunit 8 as a fallback.

* Fix TestCase inheritance

* Add phpunit cache file to gitignore

* Put license @phpdoc into separate mustache

* Bump readme PHP version to 7.2

* Bump @phpdoc PHP version to 7.2

* Update Zend Diactoros with suggested package

* Refresh samples

* Remove broken tests

These tests will be fixed in next PR which moves Mock feature to
external repo.

* Point root Travis CI environment to PHP 7.3
2020-06-14 22:40:06 +08:00
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