fix phpunit on older php versions

README.md

@@ -29,7 +29,7 @@ echo $router->generate( 'user-details', array( 'id' => 5 ) ); // Output: "/users
 
 ## Getting started
 
-You need PHP >= 5.3 to use AltoRouter.
+You need PHP >= 5.3 to use AltoRouter, although we highly recommend you [use an officially supported PHP version](https://secure.php.net/supported-versions.php).
 
 - [Install AltoRouter](http://altorouter.com/usage/install.html)
 - [Rewrite all requests to AltoRouter](http://altorouter.com/usage/rewrite-requests.html)

composer.json

@@ -20,10 +20,10 @@
       }
    ],
    "require": {
-      "php": ">=5.3.0"
+      "php": ">=5.6.0"
    },
    "require-dev": {
-      "phpunit/phpunit": "7.5.*",
+      "phpunit/phpunit": "5.7.*",
       "codeclimate/php-test-reporter": "dev-master"
    },
    "autoload": {

tests/AltoRouterTest.php

@@ -73,7 +73,8 @@ class AltoRouterTest extends PHPUnit\Framework\TestCase
 		$route = '/[:controller]/[:action]';
 		$target = function(){};
 
-		$this->assertIsArray($this->router->getRoutes());
+		$this->assertInternalType('array', $this->router->getRoutes());
+		// $this->assertIsArray($this->router->getRoutes()); // for phpunit 7.x
 		$this->router->map($method, $route, $target);
 		$this->assertEquals(array(array($method, $route, $target, null)), $this->router->getRoutes());
 	}