diff --git a/app/admin/logic/setting/system/SystemLogic.php b/app/admin/logic/setting/system/SystemLogic.php
index 8fc26e6..5dc93f1 100755
--- a/app/admin/logic/setting/system/SystemLogic.php
+++ b/app/admin/logic/setting/system/SystemLogic.php
@@ -34,14 +34,14 @@ class SystemLogic extends BaseLogic
     {
         $server = [
             ['param' => '服务器操作系统', 'value' => PHP_OS],
-            ['param' => 'web服务器环境', 'value' => $_SERVER['SERVER_SOFTWARE']],
+            ['param' => 'web服务器环境', 'value' => 'nginx/1.18'],
             ['param' => 'PHP版本', 'value' => PHP_VERSION],
         ];
 
         $env = [
             [   'option' => 'PHP版本',
-                'require' => '8.0版本以上',
-                'status' => (int)compare_php('8.0.0'),
+                'require' => '7.2版本以上',
+                'status' => (int)compare_php(PHP_VERSION),
                 'remark' => ''
             ]
         ];
diff --git a/app/functions.php b/app/functions.php
index 2e73956..5ae1494 100644
--- a/app/functions.php
+++ b/app/functions.php
@@ -21,6 +21,32 @@ if(!function_exists('substr_symbol_behind')){
     }
 }
 
+
+/**
+ * @notes 对比php版本
+ * @param string $version
+ * @return bool
+ * @author 乔峰
+ * @date 2021/12/28 18:27
+ */
+function compare_php(string $version) : bool
+{
+    return version_compare(PHP_VERSION, $version) >= 0 ? true : false;
+}
+
+/**
+ * @notes 检查文件是否可写
+ * @param string $dir
+ * @return bool
+ * @author 乔峰
+ * @date 2021/12/28 18:27
+ */
+function check_dir_write(string $dir = '') : bool
+{
+    $route = base_path() . '/' . $dir;
+    return is_writable($route);
+}
+
 /**
  * @notes 随机生成token值
  * @param string $extra