SQL Server连接数据库报错08001

Question

#SQL SRV
【前端报错信息】
连接失败!Array ( [0] => Array ( [0] => 08001 [SQLSTATE] => 08001 [1] => 2 [code] => 2 [2] => [Microsoft][ODBC Driver 17 for SQL Server]Named Pipes Provider: Could not open a connection to SQL Server [2]. [message] => [Microsoft][ODBC Driver 17 for SQL Server]Named Pipes Provider: Could not open a connection to SQL Server [2]. ) [1] => Array ( [0] => HYT00 [SQLSTATE] => HYT00 [1] => 0 [code] => 0 [2] => [Microsoft][ODBC Driver 17 for SQL Server]Login timeout expired [message] => [Microsoft][ODBC Driver 17 for SQL Server]Login timeout expired ) [2] => Array ( [0] => 08001 [SQLSTATE] => 08001 [1] => 2 [code] => 2 [2] => [Microsoft][ODBC Driver 17 for SQL Server]A network-related or instance-specific error has occurred while establishing a connection to SQL Server. Server is not found or not accessible. Check if instance name is correct and if SQL Server is configured to allow remote connections. For more information see SQL Server Books Online. [message] => [Microsoft][ODBC Driver 17 for SQL Server]A network-related or instance-specific error has occurred while establishing a connection to SQL Server. Server is not found or not accessible. Check if instance name is correct and if SQL Server is configured to allow remote connections. For more information see SQL Server Books Online. ) )
【php代码如下】

<?php
header("Content-type: text/html; charset=utf-8");
$serverName = "localhost"; //数据库服务器地址
$uid = "sa"; //数据库用户名
$pwd = "1"; //数据库密码
$connectionInfo = array("UID"=>$uid, "PWD"=>$pwd, "Database"=>"FLY","CharacterSet" => "UTF-8");
$conn = sqlsrv_connect( $serverName, $connectionInfo);
if( $conn == false)
{
echo "连接失败!";
die( print_r( sqlsrv_errors(), true));
}else{
//echo "连接成功！";  
}
?>

Answer 1

Check if instance name is correct and if SQL Server is configured to allow remote connections.
检查实例名称是否准确，数据库配置是否允许远程连接。

Answer 2

实锤了uus，localhost不能用，用.\sqlexpress