Php Laravel:一般错误：1615准备好的语句需要重新准备

我正在homestead虚拟机（vagrant）中使用laravel（5.1）的最新版本

我将我的项目连接到本地mariaDB服务器，其中有一些表和2db视图

由于我在db view表上进行了一些仅选择，因此我随机收到此错误：

一般错误：需要重新准备1615准备好的语句

从今天起，我总是在db视图上选择时出现这个错误。 如果打开phpMyAdmin并进行相同的选择，则返回正确的结果

我试图打开

php artisan tinker

并选择db视图的一条记录，但它返回相同的错误：

// Select one user from user table
>>> $user = new App\User
=> <App\User #000000006dc32a890000000129f667d2> {}
>>> $user = App\User::find(1);
=> <App\User #000000006dc32a9e0000000129f667d2> {
       id: 1,
       name: "Luca",
       email: "luca@email.it",
       customerId: 1,
       created_at: "2015-08-06 04:17:57",
       updated_at: "2015-08-11 12:39:01"
   }
>>> 
// Select one source from Source db-view
>>> $source = new App\Source
=> <App\Source #000000006dc32a820000000129f667d2> {}
>>> $source = App\Source::find(1);
Illuminate\Database\QueryException with message 'SQLSTATE[HY000]: General error: 1615 Prepared statement needs to be re-prepared (SQL: select * from `sources` where `sources`.`id` = 1 limit 1)'

---

编辑2：

如果我使用mysqli在项目中执行相同的查询，它会工作：

$db = new mysqli(getenv('DB_HOST'), getenv('DB_USERNAME'), getenv('DB_PASSWORD'), getenv('DB_DATABASE'));
if($db->connect_errno > 0){
    dd('Unable to connect to database [' . $db->connect_error . ']');
}
$sql = "SELECT * FROM `sources` WHERE `id` = 4";
if(!$result = $db->query($sql)){
    dd('There was an error running the query [' . $db->error . ']');
}

dd($result->fetch_assoc());

---

编辑3： 两个月后，我还在那里。相同的错误，未找到解决方案。 我决定在Aristan tinker中尝试一些解决方案，但没有好消息。 我报告我所做的尝试：

首先尝试获取表模型：

>>> $user = \App\User::find(1);
=> App\User {#697
     id: 1,
     name: "Luca",
     email: "luca.d@company.it",
     customerId: 1,
     created_at: "2015-08-06 04:17:57",
     updated_at: "2015-10-27 11:28:14",
   }

>>> $ir = \App\ContentRepository::find(15);
Illuminate\Database\QueryException with message 'SQLSTATE[42S02]: Base table or view not found: 1146 Table 'dbname.content_repositories' doesn't exist (SQL: select * from `content_repositories` where `content_repositories`.`id` = 1 limit 1)'

现在尝试获取视图表模型：

>>> $user = \App\User::find(1);
=> App\User {#697
     id: 1,
     name: "Luca",
     email: "luca.d@company.it",
     customerId: 1,
     created_at: "2015-08-06 04:17:57",
     updated_at: "2015-10-27 11:28:14",
   }

>>> $ir = \App\ContentRepository::find(15);
Illuminate\Database\QueryException with message 'SQLSTATE[42S02]: Base table or view not found: 1146 Table 'dbname.content_repositories' doesn't exist (SQL: select * from `content_repositories` where `content_repositories`.`id` = 1 limit 1)'

当contentRepository模型contentRepository.php中没有正确的表名设置时：

>>> $pdo = DB::connection()->getPdo();
=> PDO {#690
     inTransaction: false,
     errorInfo: [
       "00000",
       1146,
       "Table 'dbname.content_repositories' doesn't exist",
     ],
     attributes: [
       "CASE" => NATURAL,
       "ERRMODE" => EXCEPTION,
       "AUTOCOMMIT" => 1,
       "PERSISTENT" => false,
       "DRIVER_NAME" => "mysql",
       "SERVER_INFO" => "Uptime: 2513397  Threads: 12  Questions: 85115742  Slow queries: 6893568  Opens: 1596  Flush tables: 1  Open tables: 936  Queries per second avg: 33.864",
       "ORACLE_NULLS" => NATURAL,
       "CLIENT_VERSION" => "mysqlnd 5.0.11-dev - 20120503 - $Id: id_here $",
       "SERVER_VERSION" => "5.5.5-10.0.17-MariaDB-1~wheezy-wsrep-log",
       "STATEMENT_CLASS" => [
         "PDOStatement",
       ],
       "EMULATE_PREPARES" => 0,
       "CONNECTION_STATUS" => "localiphere via TCP/IP",
       "DEFAULT_FETCH_MODE" => BOTH,
     ],
   }
>>> 

>>> $ir = \App\ContentRepository::find(15);
Illuminate\Database\QueryException with message 'SQLSTATE[HY000]: General error: 1615 Prepared statement needs to be re-prepared (SQL: select * from `contentRepository` where `contentRepository`.`id` = 15 limit 1)'

更改模型ContentRepository.php中的表值：

>>> $pdo = DB::connection()->getPdo();
=> PDO {#690
     inTransaction: false,
     errorInfo: [
       "00000",
       1146,
       "Table 'dbname.content_repositories' doesn't exist",
     ],
     attributes: [
       "CASE" => NATURAL,
       "ERRMODE" => EXCEPTION,
       "AUTOCOMMIT" => 1,
       "PERSISTENT" => false,
       "DRIVER_NAME" => "mysql",
       "SERVER_INFO" => "Uptime: 2513397  Threads: 12  Questions: 85115742  Slow queries: 6893568  Opens: 1596  Flush tables: 1  Open tables: 936  Queries per second avg: 33.864",
       "ORACLE_NULLS" => NATURAL,
       "CLIENT_VERSION" => "mysqlnd 5.0.11-dev - 20120503 - $Id: id_here $",
       "SERVER_VERSION" => "5.5.5-10.0.17-MariaDB-1~wheezy-wsrep-log",
       "STATEMENT_CLASS" => [
         "PDOStatement",
       ],
       "EMULATE_PREPARES" => 0,
       "CONNECTION_STATUS" => "localiphere via TCP/IP",
       "DEFAULT_FETCH_MODE" => BOTH,
     ],
   }
>>> 

>>> $ir = \App\ContentRepository::find(15);
Illuminate\Database\QueryException with message 'SQLSTATE[HY000]: General error: 1615 Prepared statement needs to be re-prepared (SQL: select * from `contentRepository` where `contentRepository`.`id` = 15 limit 1)'

如果正确，请注意缺少的“errorInfo”：

>>> $pdo = DB::connection()->getPdo();
=> PDO {#690
     inTransaction: false,
     attributes: [
       "CASE" => NATURAL,
       "ERRMODE" => EXCEPTION,
       "AUTOCOMMIT" => 1,
       "PERSISTENT" => false,
       "DRIVER_NAME" => "mysql",
       "SERVER_INFO" => "Uptime: 2589441  Threads: 13  Questions: 89348013  Slow queries: 7258017  Opens: 1604  Flush tables: 1  Open tables: 943  Queries per second avg: 34.504",
       "ORACLE_NULLS" => NATURAL,
       "CLIENT_VERSION" => "mysqlnd 5.0.11-dev - 20120503 - $Id: id_here $",
       "SERVER_VERSION" => "5.5.5-10.0.17-MariaDB-1~wheezy-wsrep-log",
       "STATEMENT_CLASS" => [
         "PDOStatement",
       ],
       "EMULATE_PREPARES" => 0,
       "CONNECTION_STATUS" => "localIPhere via TCP/IP",
       "DEFAULT_FETCH_MODE" => BOTH,
     ],
   }

显示数据库的表：

>>> $tables = DB::select('SHOW TABLES');
=> [
     {#702
       +"Tables_in_dbname": "table_name_there",
     },
     {#683
       +"Tables_in_dbname": "table_name_there",
     },
     {#699
       +"Tables_in_dbname": "table_name_there",
     },
     {#701
       +"Tables_in_dbname": "table_name_there-20150917-1159",
     },
     {#704
       +"Tables_in_dbname": "contentRepository", */ VIEW TABLE IS THERE!!!! /*
     },
     {#707
       +"Tables_in_dbname": "table_name_there",
     },
     {#684
       +"Tables_in_dbname": "table_name_there",
     },
   ]

尝试正常选择：

>>> $results = DB::select('select * from dbname.contentRepository limit 1');
Illuminate\Database\QueryException with message 'SQLSTATE[HY000]: General error: 1615 Prepared statement needs to be re-prepared (SQL: select * from dbname.contentRepository limit 1)'

尝试未准备好的查询：

>>> DB::unprepared('select * from dbname.contentRepository limit 1')
=> false

>>> DB::unprepared('select * from dbname.contentRepository limit 1')
Illuminate\Database\QueryException with message 'SQLSTATE[HY000]: General error: 2014 Cannot execute queries while other unbuffered queries are active.  Consider using PDOStatement::fetchAll().  Alternatively, if your code is only ever going to run against mysql, you may enable query buffering by setting the PDO::MYSQL_ATTR_USE_BUFFERED_QUERY attribute. (SQL: select * from dbname.contentRepository limit 1)'

第二次尝试未准备好的查询：

>>> DB::unprepared('select * from dbname.contentRepository limit 1')
=> false

>>> DB::unprepared('select * from dbname.contentRepository limit 1')
Illuminate\Database\QueryException with message 'SQLSTATE[HY000]: General error: 2014 Cannot execute queries while other unbuffered queries are active.  Consider using PDOStatement::fetchAll().  Alternatively, if your code is only ever going to run against mysql, you may enable query buffering by setting the PDO::MYSQL_ATTR_USE_BUFFERED_QUERY attribute. (SQL: select * from dbname.contentRepository limit 1)'

Try PDOStatement:：fetchAll（）：

请尝试第二个PDO语句：：fetchAll（）：

Try语句…：

>>> $pdos = DB::statement('select * from dbname.contentRepository limit 1')
Illuminate\Database\QueryException with message 'SQLSTATE[HY000]: General error: 1615 Prepared statement needs to be re-prepared (SQL: select * from dbname.contentRepository limit 1)'

谢谢

这似乎是一个已经被记录在案的问题

编辑：

您的模型是否使用“id”作为主键？我喜欢在模型中显式地设置主键，即使它是

protected$primaryKey='id'；//如果与id不同，则肯定需要在此处设置列

---

您还可以尝试注释掉

hasMany（）

函数，然后重试。有时Laravel会在加载时做一些奇怪的事情，特别是当它试图映射到很多记录时

这似乎能起作用

'options'   => [
                \PDO::ATTR_EMULATE_PREPARES => true
            ]

数据库配置中的

projectName/config/database.php

文件内部。它将是这样的：

'mysql' => [
    'driver'    => 'mysql',
    'host'      => env('DB_HOST', 'localhost'),
    'database'  => env('DB_DATABASE', 'forge'),
    'username'  => env('DB_USERNAME', 'forge'),
    'password'  => env('DB_PASSWORD', ''),
    'charset'   => 'utf8',
    'collation' => 'utf8_unicode_ci',
    'prefix'    => '',
    'strict'    => false,
    'options'   => [
        \PDO::ATTR_EMULATE_PREPARES => true
    ]
],

---

拉威尔5.1。希望这会有帮助

根据接受答案中的评论， 运行

设置全局表\u定义\u缓存=1024

最后，他解决了这个问题

---

请添加您的源代码模型。如问题中所述，我已经发现了该漏洞，但我有mariaDB（MySQL的分支），我无法增加该属性的价值。错误报告已暂停。@TENDOUSD93更新回答谢谢您的编辑。不，它不是主键。不管怎样，还是试试看，但不管用。我试图注释

customersList（）

和

issues（）

方法，并调用

$s=Source:：find（1）但它也不起作用。你的可填充列是什么？您可能有保留字或其他破坏查询的内容。您可以发布表结构吗？发布此消息后，您是否尝试过其他方法？运气好吗？请注意，这不应该被推荐，因为这可能会引入安全漏洞（SQL注入），因为仿真并非完美无缺。大多数解决方案建议在MySQL配置中增加
table_definition_cache
的值。正如@David所提到的，
SET GLOBAL table_definition_cache=1024
对我有效。适用于Laravel 5.6:-）关闭预处理语句模拟会导致其他错误。特别是，这一个是一个总显示停止：。在PHP7.2上，当保存在mysql十进制字段中时，浮点数被四舍五入为整数。在MariaDB中修复该错误之前，唯一的选择似乎是让表定义缓存大于服务器（）上的表总数。该错误似乎特别影响视图。这个bug已经在这里提交了，MariaDB开发人员已经得到了一个补丁。在推出之前，从讨论中可以看出，表定义缓存的设置必须超过服务器上所有数据库中的表总数（从information_schema.tables；中选择COUNT（*））