添加高版本支持

composer.json

@@ -1,5 +1,5 @@
 {
-  "name": "xaboy/form-builder",
+  "name": "cxy/form-builder",
   "description": "PHP表单生成器，快速生成现代化的form表单。包含复选框、单选框、输入框、下拉选择框等元素以及,省市区三级联动,时间选择,日期选择,颜色选择,文件/图片上传等功能。",
   "license": "MIT",
   "keywords": [
@@ -10,11 +10,11 @@
     "element-ui",
     "iview"
   ],
-  "homepage": "https://github.com/xaboy/form-builder",
+  "homepage": "https://github.com/TestAdmin007/form-builder",
   "authors": [
     {
-      "name": "xaboy",
-      "email": "[email protected]"
+      "name": "程旭源",
+      "email": "[email protected]"
     }
   ],
   "autoload": {
@@ -23,11 +23,11 @@
     }
   },
   "support": {
-    "issues": "https://github.com/xaboy/form-builder/issues",
-    "source": "https://github.com/xaboy/form-builder"
+    "issues": "https://github.com/TestAdmin007/form-builder/issues",
+    "source": "https://github.com/TestAdmin007/form-builder"
   },
   "require": {
-    "php": ">=5.4.0",
+    "php": ">=7.1.0",
     "ext-json": "*",
     "symfony/http-foundation": ">=2.6",
     "doctrine/annotations": "^1.2.7"

src/Driver/CustomComponent.php

@@ -94,27 +94,27 @@ public function build()
         return $this->appendRule + $this->getRule();
     }
 
-    public function jsonSerialize()
+    public function jsonSerialize(): mixed
     {
         return $this->build();
     }
 
-    public function offsetExists($offset)
+    public function offsetExists($offset): bool
     {
         return isset($this->props[$offset]);
     }
 
-    public function offsetGet($offset)
+    public function offsetGet($offset): mixed
     {
         return $this->props[$offset];
     }
 
-    public function offsetSet($offset, $value)
+    public function offsetSet($offset, $value): void
     {
         $this->props[$offset] = $value;
     }
 
-    public function offsetUnset($offset)
+    public function offsetUnset($offset): void
     {
         unset($this->props[$offset]);
     }