Add travis

Author: snapshotpl

.gitignore

@@ -1 +1,3 @@
-/nbproject/private/
+coverage/
+vendor/
+composer.lock

.travis.yml

@@ -0,0 +1,18 @@
+language: php
+
+php:
+  - 5.6
+  - 7.0
+  - 7.1
+
+env:
+  - DEPS=lowest
+  - DEPS=latest
+
+before_script:
+  - phpenv config-rm xdebug.ini
+  - if [[ $DEPS == 'lowest' ]]; then composer update --prefer-stable --no-interaction --prefer-lowest ; fi
+  - if [[ $DEPS == 'latest' ]]; then composer update --prefer-stable --no-interaction ; fi
+
+script:
+  - ./vendor/bin/phpunit

composer.json

@@ -1,6 +1,7 @@
 {
     "name": "php-middleware/request-simulator",
     "require": {
+        "php": ">=5.6",
         "zendframework/zend-diactoros": "1.*"
     },
     "require-dev": {