未定义 class 常量 'SQLSRV_ENCODING_SYSTEM'

Question

尝试运行 php artisan 在 laravel 上迁移时出现错误

In database.php line 79:
Undefined class constant 'SQLSRV_ENCODING_SYSTEM'

我安装了 sql 驱动程序等，但不确定如何解决这个问题

database.php 文件

'sqlsrv' => [
        'driver' => 'sqlsrv',
        'host' => env('DB_HOST', 'localhost'),
        'port' => env('DB_PORT', '1433'),
        'database' => env('DB_DATABASE', 'forge'),
        'username' => env('DB_USERNAME', 'forge'),
        'password' => env('DB_PASSWORD', ''),
        'charset' => 'utf8',
        'prefix' => '',
        'options' => [PDO::SQLSRV_ENCODING_SYSTEM => false], // Used for MSSQL encoding
    ],

Answer 1

说明：

PDO::SQLSRV_ENCODING_SYSTEM 是 PDO_SQLSRV Driver Constant，不是选项名称。您应该在选项中使用 PDO::SQLSRV_ATTR_ENCODING => PDO::SQLSRV_ENCODING_SYSTEM。请记住，此选项是 Microsoft Drivers for PHP for SQL Server specific driver attribute（PDO::SQLSRV_ATTR_ENCODING 和 PDO::SQLSRV_ATTR_DIRECT_QUERY 之一）。

<?php

...
'sqlsrv' => [
    'driver' => 'sqlsrv',
    'host' => env('DB_HOST', 'localhost'),
    'port' => env('DB_PORT', '1433'),
    'database' => env('DB_DATABASE', 'forge'),
    'username' => env('DB_USERNAME', 'forge'),
    'password' => env('DB_PASSWORD', ''),
    'charset' => 'utf8',
    'prefix' => '',
    'options' => [PDO::SQLSRV_ATTR_ENCODING => PDO::SQLSRV_ENCODING_SYSTEM]
],

...
?>

备注：

文档：Microsoft SQL Server Functions (PDO_SQLSRV) and Constants (Microsoft Drivers for PHP for SQL Server).

未定义 class 常量 'SQLSRV_ENCODING_SYSTEM'

Undefined class constant 'SQLSRV_ENCODING_SYSTEM'

sql-server

laravel

sqlsrv

laravel-5