diff --git a/var/Typecho/Db/Adapter.php b/var/Typecho/Db/Adapter.php
index 6aa4ee17..907b766c 100644
--- a/var/Typecho/Db/Adapter.php
+++ b/var/Typecho/Db/Adapter.php
@@ -84,10 +84,10 @@ interface Adapter
     /**
      * 引号转义函数
      *
-     * @param string $string 需要转义的字符串
+     * @param mixed $string 需要转义的字符串
      * @return string
      */
-    public function quoteValue(string $string): string;
+    public function quoteValue($string): string;
 
     /**
      * 对象引号过滤
diff --git a/var/Typecho/Db/Adapter/Mysqli.php b/var/Typecho/Db/Adapter/Mysqli.php
index 55d0abc0..5fb62e01 100644
--- a/var/Typecho/Db/Adapter/Mysqli.php
+++ b/var/Typecho/Db/Adapter/Mysqli.php
@@ -152,10 +152,10 @@ class Mysqli implements Adapter
     /**
      * 引号转义函数
      *
-     * @param string $string 需要转义的字符串
+     * @param mixed $string 需要转义的字符串
      * @return string
      */
-    public function quoteValue(string $string): string
+    public function quoteValue($string): string
     {
         return '\'' . str_replace(['\'', '\\'], ['\'\'', '\\\\'], $string) . '\'';
     }
diff --git a/var/Typecho/Db/Adapter/Pdo.php b/var/Typecho/Db/Adapter/Pdo.php
index 349a02e2..649772f9 100644
--- a/var/Typecho/Db/Adapter/Pdo.php
+++ b/var/Typecho/Db/Adapter/Pdo.php
@@ -151,10 +151,10 @@ abstract class Pdo implements Adapter
     /**
      * 引号转义函数
      *
-     * @param string $string 需要转义的字符串
+     * @param mixed $string 需要转义的字符串
      * @return string
      */
-    public function quoteValue(string $string): string
+    public function quoteValue($string): string
     {
         return $this->object->quote($string);
     }
diff --git a/var/Typecho/Db/Adapter/Pdo/Mysql.php b/var/Typecho/Db/Adapter/Pdo/Mysql.php
index 215a9dce..c3f4bd69 100644
--- a/var/Typecho/Db/Adapter/Pdo/Mysql.php
+++ b/var/Typecho/Db/Adapter/Pdo/Mysql.php
@@ -70,10 +70,10 @@ class Mysql extends Pdo
     /**
      * 引号转义函数
      *
-     * @param string $string 需要转义的字符串
+     * @param mixed $string 需要转义的字符串
      * @return string
      */
-    public function quoteValue(string $string): string
+    public function quoteValue($string): string
     {
         return '\'' . str_replace(['\'', '\\'], ['\'\'', '\\\\'], $string) . '\'';
     }
diff --git a/var/Typecho/Db/Adapter/Pgsql.php b/var/Typecho/Db/Adapter/Pgsql.php
index 85033904..1b223148 100644
--- a/var/Typecho/Db/Adapter/Pgsql.php
+++ b/var/Typecho/Db/Adapter/Pgsql.php
@@ -136,10 +136,10 @@ class Pgsql implements Adapter
     /**
      * 引号转义函数
      *
-     * @param string $string 需要转义的字符串
+     * @param mixed $string 需要转义的字符串
      * @return string
      */
-    public function quoteValue(string $string): string
+    public function quoteValue($string): string
     {
         return '\'' . pg_escape_string($string) . '\'';
     }
diff --git a/var/Typecho/Db/Adapter/SQLite.php b/var/Typecho/Db/Adapter/SQLite.php
index 0bc270cb..e3e9df7e 100644
--- a/var/Typecho/Db/Adapter/SQLite.php
+++ b/var/Typecho/Db/Adapter/SQLite.php
@@ -132,10 +132,10 @@ class SQLite implements Adapter
     /**
      * 引号转义函数
      *
-     * @param string $string 需要转义的字符串
+     * @param mixed $string 需要转义的字符串
      * @return string
      */
-    public function quoteValue(string $string): string
+    public function quoteValue($string): string
     {
         return '\'' . str_replace('\'', '\'\'', $string) . '\'';
     }
diff --git a/var/Typecho/Request.php b/var/Typecho/Request.php
index cfb11603..8e99ff42 100644
--- a/var/Typecho/Request.php
+++ b/var/Typecho/Request.php
@@ -111,6 +111,8 @@ class Request
      */
     public function get(string $key, $default = null, ?bool &$exists = true)
     {
+        $exists = true;
+
         switch (true) {
             case isset($this->params) && isset($this->params[$key]):
                 $value = $this->params[$key];
diff --git a/var/Typecho/Widget/Request.php b/var/Typecho/Widget/Request.php
index f421b1ba..751fe396 100644
--- a/var/Typecho/Widget/Request.php
+++ b/var/Typecho/Widget/Request.php
@@ -101,10 +101,7 @@ class Request
     /**
      * 获取实际传递参数(magic)
      *
-     * @access public
-     *
      * @param string $key 指定参数
-     *
      * @return mixed
      */
     public function __get(string $key)
@@ -115,10 +112,7 @@ class Request
     /**
      * 判断参数是否存在
      *
-     * @access public
-     *
      * @param string $key 指定参数
-     *
      * @return boolean
      */
     public function __isset(string $key)