Merge pull request #5 from stefnats/master

PHP 8.x compatibility

Author: thomas-kl1

composer.json

@@ -32,7 +32,7 @@
     },
     "prefer-stable": true,
     "require": {
-        "php": "^7.4",
+        "php": "^7.4||^8.0",
         "ext-curl": "*",
         "ext-json": "*",
         "ext-mbstring": "*"