Introducing coding standards validation.

vendor/phpcompatibility/php-compatibility/composer.json

@@ -0,0 +1,44 @@
+{
+  "name" : "phpcompatibility/php-compatibility",
+  "description" : "A set of sniffs for PHP_CodeSniffer that checks for PHP cross-version compatibility.",
+  "type" : "phpcodesniffer-standard",
+  "keywords" : [ "compatibility", "phpcs", "standards" ],
+  "homepage" : "http://techblog.wimgodden.be/tag/codesniffer/",
+  "license" : "LGPL-3.0-or-later",
+  "authors" : [ {
+    "name" : "Wim Godden",
+    "role" : "lead",
+    "homepage" : "https://github.com/wimg"
+  },
+  {
+    "name" : "Juliette Reinders Folmer",
+    "role" : "lead",
+    "homepage" : "https://github.com/jrfnl"
+  },
+  {
+    "name" : "Contributors",
+    "homepage" : "https://github.com/PHPCompatibility/PHPCompatibility/graphs/contributors"
+  } ],
+  "support" : {
+    "issues" : "https://github.com/PHPCompatibility/PHPCompatibility/issues",
+    "source" : "https://github.com/PHPCompatibility/PHPCompatibility"
+  },
+  "require" : {
+    "php" : ">=5.3",
+    "squizlabs/php_codesniffer" : "^2.3 || ^3.0.2"
+  },
+  "require-dev" : {
+    "phpunit/phpunit": "~4.5 || ^5.0 || ^6.0 || ^7.0"
+  },
+  "conflict": {
+    "squizlabs/php_codesniffer": "2.6.2"
+  },
+  "suggest" : {
+    "dealerdirect/phpcodesniffer-composer-installer": "^0.4.3 || This Composer plugin will sort out the PHPCS 'installed_paths' automatically.",
+    "roave/security-advisories": "dev-master || Helps prevent installing dependencies with known security issues."
+  },
+  "scripts" : {
+    "post-install-cmd": "\"vendor/bin/phpcs\" --config-set installed_paths ../../..",
+    "post-update-cmd" : "\"vendor/bin/phpcs\" --config-set installed_paths ../../.."
+  }
+}