Add PHP_CodeSniffer

Author: adbario

.travis.yml

@@ -26,6 +26,7 @@ before_script:
 script:
   - if [[ $ANALYZE == 'true' ]]; then vendor/bin/phpunit --coverage-clover build/logs/clover.xml ; fi;
   - if [[ $ANALYZE != 'true' ]]; then vendor/bin/phpunit ; fi;
+  - if [[ $ANALYZE == 'true' ]]; then vendor/bin/phpcs ; fi
 
 after_success:
   - if [[ $ANALYZE == 'true' ]]; then php vendor/bin/coveralls -v ; fi

composer.json

@@ -14,7 +14,8 @@
         "php": ">=5.5"
     },
     "require-dev": {
-        "phpunit/phpunit": "^4.0|^5.0|^6.0"
+        "phpunit/phpunit": "^4.0|^5.0|^6.0",
+        "squizlabs/php_codesniffer": "^3.0"
     },
     "autoload": {
         "files": [