Wrong COM_STMT_PREPARE response size. Received 7. LARAVEL ERROR

问题

I have a blog that is developed using laravel. In my local PC, everything is okay. But when I upload it in live shared hosting server it throws error like below:

ErrorException in MySqlConnector.php line 124:
Wrong COM_STMT_PREPARE response size. Received 7

My server configuration is given below

Server: MariaDB

Server version: 10.1.20-MariaDB - MariaDB Server

PHP 5.6

I could not find any solution. Any help would be greatly appreciated.

回答1:

I also faced the same problem. My web host provider was 000webhost. Just set this PDO attribute PDO::ATTR_EMULATE_PREPARES to true in your database config file (config/database.php) and it should work fine.

Eg:

'mysql' => [
    'driver' => 'mysql',
    'host' => env('DB_HOST', 'localhost'),
    //.......
    'options'   => [PDO::ATTR_EMULATE_PREPARES => true,]
],

回答2:

Inside both (1) /bootstrap/cache/config.php (2) /config/database.php

For your particular database-server driver you need to add:

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

For example:

'driver' => 'mysql',
'host' => 'localhost',
'port' => '3306',
//.....
'options' => [PDO::ATTR_EMULATE_PREPARES => true]

but please not you have to add it in both files:

/bootstrap/cache/config.php
/config/database.php

because when I added it just inside /config/database.php I kept getting the same error, so after hours of googling around, I realized it is because this /bootstrap/cache/config.php is sort of a cache file made from Laravel .env file and /config/database.php and other files, and this cache file seems to be made only once when you set the API_KEY thing inside .env file with php artisan key:generate.

回答3:

After researching everywhere I came to conclusion that the problem is in the database engine of the shared hosting, maybe a permission or something, so the solution I found was to create the database in a separate service. I used sql9.freemysqlhosting.net and is working fine so far.

note: This idea above is copied from another person but i tried it, and it works successfully

来源：https://stackoverflow.com/questions/43953626/wrong-com-stmt-prepare-response-size-received-7-laravel-error

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php

mysql

laravel

laravel-5.2

mariadb