configure travis and phpcs

Author: AlaaSarhan

.travis.yml

@@ -0,0 +1,35 @@
+language: php
+
+php:
+  - 5.6
+  - 7.0
+  - 7.1
+  - 7.2
+  - 7.3
+  - nightly
+
+matrix:
+  fast_finish: true
+  allow_failures:
+    - php: nightly
+
+sudo: false
+
+before_install:
+  - travis_retry composer self-update
+
+install:
+  - travis_retry composer require --no-update satooshi/php-coveralls:^1.0
+  - travis_retry composer install --no-interaction --prefer-source
+
+before_script:
+  - mkdir -p build/logs
+
+script:
+  - ./vendor/bin/phpunit
+  - ./vendor/bin/phpcs -sp
+
+branches:
+  only:
+  - master
+  - next

composer.json

@@ -18,12 +18,14 @@
     },
     "minimum-stability": "stable",
     "require": {
-        "php": ">=5.5"
+        "php": "^5.6|^7.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^5.5"
+        "phpunit/phpunit": "^5.7|^6.0",
+        "squizlabs/php_codesniffer": "^2.3|^3.0"
     },
     "scripts": {
-        "test": "phpunit"
+        "test": "phpunit",
+        "cs": "phpcs -sp"
     }
 }

phpcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0"?>
+<ruleset>
+    <file>./src</file>
+    <file>./test</file>
+    <rule ref="PSR2" />
+</ruleset>