diff --git a/library/think/View.php b/library/think/View.php
index eb6ff3cb..c763c688 100644
--- a/library/think/View.php
+++ b/library/think/View.php
@@ -178,11 +178,6 @@ class View
             $replace = $this->config['parse_str'];
             $content = str_replace(array_keys($replace), array_values($replace), $content);
         }
-        if (APP_DEBUG && $this->config['parse_var']) {
-            // debug模式时，将后台分配变量输出到浏览器控制台
-            $parseVar = empty($vars) ? json_encode([]) : json_encode($vars);
-            $content .= '<script type="text/javascript">var __VAR__ = ' . $parseVar . ';</script>';
-        }
         return $content;
     }
 
diff --git a/library/think/db/Driver.php b/library/think/db/Driver.php
index ba68ad96..02ff2e72 100644
--- a/library/think/db/Driver.php
+++ b/library/think/db/Driver.php
@@ -432,8 +432,8 @@ abstract class Driver
                     $set[] = $this->parseKey($key) . '=' . $val;
                 } else {
                     $name  = count($this->bind);
-                    $set[] = $this->parseKey($key) . '=:' . $name;
-                    $this->bindParam($name, $val);
+                    $set[] = $this->parseKey($key) . '=:' . $key . '_' . $name;
+                    $this->bindParam($key . '_' . $name, $val);
                 }
             }
         }
@@ -458,7 +458,7 @@ abstract class Driver
      * @param string $key
      * @return string
      */
-    protected function parseKey(&$key)
+    protected function parseKey($key)
     {
         return $key;
     }
@@ -539,8 +539,7 @@ abstract class Driver
             }
             $tables = $array;
         } elseif (is_string($tables)) {
-            $tables = explode(',', $tables);
-            array_walk($tables, [ & $this, 'parseKey']);
+            $tables = array_map([$this, 'parseKey'], explode(',', $tables));
         }
         return implode(',', $tables);
     }
@@ -913,8 +912,8 @@ abstract class Driver
                     $values[] = $val;
                 } else {
                     $name     = count($this->bind);
-                    $values[] = ':' . $name;
-                    $this->bindParam($name, $val);
+                    $values[] = ':' . $key . '_' . $name;
+                    $this->bindParam($key . '_' . $name, $val);
                 }
             }
         }
@@ -983,8 +982,8 @@ abstract class Driver
             $fields = explode(',', $fields);
         }
 
-        array_walk($fields, [$this, 'parseKey']);
-        $sql = 'INSERT INTO ' . $this->parseTable($table) . ' (' . implode(',', $fields) . ') ';
+        $fields = array_map([$this, 'parseKey'], $fields);
+        $sql    = 'INSERT INTO ' . $this->parseTable($table) . ' (' . implode(',', $fields) . ') ';
         $sql .= $this->buildSelectSql($options);
         return $this->execute($sql, !empty($options['fetch_sql']) ? true : false);
     }
diff --git a/library/think/db/driver/Mysql.php b/library/think/db/driver/Mysql.php
index 6f2ba59c..9bde9fdb 100644
--- a/library/think/db/driver/Mysql.php
+++ b/library/think/db/driver/Mysql.php
@@ -90,7 +90,7 @@ class Mysql extends Driver
      * @param string $key
      * @return string
      */
-    protected function parseKey(&$key)
+    protected function parseKey($key)
     {
         $key = trim($key);
         if (strpos($key, '$.') && false === strpos($key, '(')) {
diff --git a/library/think/db/driver/Oracle.php b/library/think/db/driver/Oracle.php
index 0efc1ebc..5478a342 100644
--- a/library/think/db/driver/Oracle.php
+++ b/library/think/db/driver/Oracle.php
@@ -179,7 +179,7 @@ class Oracle extends Driver
      * @param string $key
      * @return string
      */
-    protected function parseKey(&$key)
+    protected function parseKey($key)
     {
         $key = trim($key);
         if (strpos($key, '$.') && false === strpos($key, '(')) {
diff --git a/library/think/db/driver/Pgsql.php b/library/think/db/driver/Pgsql.php
index 25e9f1a1..961eb17a 100644
--- a/library/think/db/driver/Pgsql.php
+++ b/library/think/db/driver/Pgsql.php
@@ -100,7 +100,7 @@ class Pgsql extends Driver
      * @param string $key
      * @return string
      */
-    protected function parseKey(&$key)
+    protected function parseKey($key)
     {
         $key = trim($key);
         if (strpos($key, '$.') && false === strpos($key, '(')) {
diff --git a/library/think/db/driver/Sqlsrv.php b/library/think/db/driver/Sqlsrv.php
index f6d17177..470f5dac 100644
--- a/library/think/db/driver/Sqlsrv.php
+++ b/library/think/db/driver/Sqlsrv.php
@@ -108,7 +108,7 @@ class Sqlsrv extends Driver
      * @param string $key
      * @return string
      */
-    protected function parseKey(&$key)
+    protected function parseKey($key)
     {
         $key = trim($key);
         if (!preg_match('/[,\'\"\*\(\)\[.\s]/', $key)) {