support php8 (#71)

Add PHP8 support

Author: maherelgamil

.travis.yml

@@ -5,6 +5,7 @@ php:
   - 7.2
   - 7.3
   - 7.4
+  - 8.0
 
 env:
   global:
@@ -17,6 +18,7 @@ before_script:
   - if [[ $setup = 'lowest' ]]; then travis_retry composer update --prefer-dist --no-interaction --prefer-lowest --prefer-stable; fi
   - if [ $(phpenv version-name) = '7.3' ]; then composer require laravel/legacy-factories --dev; fi
   - if [ $(phpenv version-name) = '7.4' ]; then composer require laravel/legacy-factories --dev; fi
+  - if [ $(phpenv version-name) = '8.0' ]; then composer require laravel/legacy-factories --dev; fi
 
 script:
   - ./vendor/bin/phpunit -c phpunit.xml.dist --verbose

composer.json

@@ -53,7 +53,7 @@
         "docs": "https://github.com/cybercog/laravel-eloquent-flag/wiki"
     },
     "require": {
-        "php": "^7.1.3",
+        "php": "^7.1.3|8.0",
         "illuminate/database": "^5.8|^6.0|^7.0|^8.0"
     },
     "require-dev": {