Merge pull request #10 from graze/php55-support

Support PHP 5.5

.travis.yml

@@ -3,6 +3,7 @@ language: php
 sudo: false
 
 php:
+  - 5.5
   - 5.6
   - 7.0
   - hhvm

Makefile

@@ -6,6 +6,7 @@ SHELL = /bin/sh
 .SILENT: help
 
 install: ## Download the depenedencies then build the image :rocket:.
+	docker pull php:5.5-cli
 	docker pull php:5.6-cli
 	docker pull php:7.0-cli
 	make 'composer-update --optimize-autoloader --ignore-platform-reqs'
@@ -21,6 +22,8 @@ test: ## Run the unit and intergration testsuites.
 test: test-unit test-benchmark
 
 test-unit: ## Run the unit testsuite.
+	docker run --rm -t -v $$(pwd):/opt/graze/formatter -w /opt/graze/formatter php:5.5-cli \
+	vendor/bin/phpunit --testsuite unit
 	docker run --rm -t -v $$(pwd):/opt/graze/formatter -w /opt/graze/formatter php:5.6-cli \
 	vendor/bin/phpunit --testsuite unit
 	docker run --rm -t -v $$(pwd):/opt/graze/formatter -w /opt/graze/formatter php:7.0-cli \

composer.json

@@ -30,13 +30,13 @@
     },
 
     "require": {
-        "php": "^5.6 || ^7.0",
+        "php": "^5.5 || ^5.6 || ^7.0",
         "graze/sort": "^2.0.1"
     },
 
     "require-dev": {
         "graze/hamcrest-test-listener": "^1.0",
         "hamcrest/hamcrest-php": "^1.2",
-        "phpunit/phpunit": "^5.0"
+        "phpunit/phpunit": "^4.8 || ^5.0"
     }
 }

src/AbstractFormatter.php

@@ -13,7 +13,6 @@
 
 namespace Graze\Formatter;
 
-use function Graze\Sort\schwartzian;
 use Graze\Formatter\Filter;
 use Graze\Formatter\FormatterInterface;
 use Graze\Formatter\Processor;
@@ -150,7 +149,7 @@ private function filter(array $unfiltered)
     private function sort(array $unsorted)
     {
         if ($this->sorters) {
-            return schwartzian($unsorted, $this->sorters);
+            return \Graze\Sort\schwartzian($unsorted, $this->sorters);
         }
 
         return $unsorted;