Update dev environment dependencies

.gitignore

@@ -8,3 +8,5 @@ composer.lock
 .php_cs.cache
 .phplint.cache
 .scannerwork
+coverage.text
+coverage.xml

.travis.yml

@@ -1,6 +1,8 @@
 language: php
 
 php:
+    - 5.6
+    - 7.0
     - 7.1
     - 7.2
     - 7.3

composer.json

@@ -19,19 +19,16 @@
         }
     ],
     "require": {
-        "php": ">=7.1",
+        "php": ">=5.6",
         "guzzlehttp/guzzle": "^6.3",
         "metowolf/meting": "^1.5",
         "ext-json": "*",
         "symfony/console": "^3.2|^4.0"
     },
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "~2.1",
-        "mockery/mockery": "~1.1",
-        "overtrue/phplint": "~1.1",
-        "phpro/grumphp": "dev-master",
-        "phpstan/phpstan": "~0.9",
-        "phpunit/phpunit": "~5 | ~7"
+        "phpunit/phpunit": "~5 || ~7",
+        "mockery/mockery": "^1.1",
+        "phpro/grumphp": "~0.14"
     },
     "license": "MIT",
     "minimum-stability": "dev",
@@ -57,24 +54,15 @@
     ],
     "scripts": {
         "unit": "./vendor/bin/phpunit --coverage-text --color=always",
-        "lint": "./vendor/bin/phplint --ansi",
-        "fix": "./vendor/bin/php-cs-fixer fix --ansi",
-        "stan": "./vendor/bin/phpstan analyse --ansi",
         "commit": "./vendor/bin/grumphp git:pre-commit",
         "grumphp": "./vendor/bin/grumphp run",
         "test": [
             "@unit",
-            "@lint",
-            "@fix",
-            "@stan",
             "@grumphp"
         ]
     },
     "scripts-descriptions": {
         "unit": "Run the phpunit tests.",
-        "lint": "Run the phplint tests.",
-        "fix": "Run the php-cs-fixer tests.",
-        "stan": "Run the phpstan tests.",
         "commit": "Run the grumphp git:pre-commit tests.",
         "grumphp": "Run the grumphp run tests.",
         "test": "Run all tests."

grumphp.yml

@@ -17,20 +17,20 @@ parameters:
         failed: grumphp-grumpy.txt
         succeeded: grumphp-happy.txt
     tasks:
-        ant: ~
-        atoum: ~
-        behat: ~
+        # ant: ~
+        # atoum: ~
+        # behat: ~
         brunch: ~
         # clover_coverage: ~
-        codeception: ~
+        # codeception: ~
         composer: ~
         # composer_normalize: ~
         # composer_require_checker: ~
         composer_script:
             script: unit
             triggered_by: [php, phtml]
             working_directory: ~
-        deptrac: ~
+        # deptrac: ~
         # doctrine_orm: ~
         file_size: ~
         gherkin: ~
@@ -39,35 +39,35 @@ parameters:
         git_commit_message: ~
         grunt: ~
         gulp: ~
-        infection: ~
+        # infection: ~
         jsonlint: ~
-        kahlan: ~
-        make: ~
+        # kahlan: ~
+        # make: ~
         npm_script:
             script: eslint --fix
             triggered_by: [js, jsx, coffee, ts, less, sass, scss]
             working_directory: "./"
             is_run_task: false
-        paratest: ~
-        phan: ~
-        phing: ~
-        php7cc: ~
-        phpcpd: ~
-        phpcs: ~
-        phpcsfixer: ~
-        phpcsfixer2: ~
+        # paratest: ~
+        # phan: ~
+        # phing: ~
+        # php7cc: ~
+        # phpcpd: ~
+        # phpcs: ~
+        # phpcsfixer: ~
+        # phpcsfixer2: ~
         # phplint: ~
-        phpmd: ~
-        phpmnd: ~
-        phpparser: ~
-        phpspec: ~
-        phpstan: ~
+        # phpmd: ~
+        # phpmnd: ~
+        # phpparser: ~
+        # phpspec: ~
+        # phpstan: ~
         phpunit: ~
-        phpunitbridge: ~
+        # phpunitbridge: ~
         phpversion: ~
-        progpilot: ~
-        psalm: ~
-        robo: ~
+        # progpilot: ~
+        # psalm: ~
+        # robo: ~
         securitychecker: ~
         shell: ~
         twigcs: ~

src/Helpers.php

@@ -17,10 +17,6 @@ function config($key = '')
 {
     $config = require 'Config.php';
 
-    if (!is_string($key)) {
-        return;
-    }
-
     if (empty($key)) {
         return $config;
     }