How to connect SQL Server by ConnectionString stored in Web.config? - sql-server

Question

I am trying to use a windows server with IIS and SQL Server to host a website. However, with simple SQL Server ODBC-connection I unfortunately found that there is no chance to work in IIS. After looking for a solution I found that I somehow need to connect SQL Server to IIS. Everybody is taking about a connection string which should be put into "the web.config" file.
String:
<connectionStrings>
<add name="MyProjectContext" connectionString="Server=.\SQLEXPRESS;Database=MyProject;User Id=John;Password=duck;" providerName="System.Data.SqlClient" />
</connectionStrings>
But where exactly do I need to put this, where is this web.config file, how can I get there?

Answer 1

thanks for your help. After researching and trying a lot of things I found a great solution on how to connect my database SQL Server in IIS with PHP.
You need to create a Web.config file in your website path.
Inside this Web.config file paste the connection string e.g.
<?xml version="1.0"?>
<configuration>
<connectionStrings>
<add name="sqlDB" connectionString="Server=xxx.xxx.xxx.xxx; Database=db_name; User Id=sqlserver_user_name; password=sqlserver_password;Max Pool Size=2000;" providerName="System.Data.SqlClient" />
</connectionStrings>
</configuration>
Then create file e.g. sql.php in same path for instance (the example below doesn't need to be changed)
<?php
// start get connection string from web.config
$xml = simplexml_load_file("Web.config") or die("Error: Cannot create object");
//in my case web.config is in previous directory
$array = json_decode(json_encode((array) $xml), 1);
$server = "";
$database = "";
$user = "";
$password = "";
$fullString = ($xml->connectionStrings->add[0]["connectionString"]);
$strArr = explode(";", $fullString);
$arrCount = count($strArr);
$connArr[]="";
for($x=0;$x<$arrCount-1;$x++){
$aS = explode("=",$strArr[$x]);
$connArr+=array(strtolower(trim($aS[0])) => trim($aS[1]));
}
$server = $connArr["server"];
$database = $connArr["database"];
$user = $connArr["user id"];
$password = $connArr["password"];
// end get connection string from web.config
$connectionInfo = array( "UID"=>$user,
"PWD"=>$password,
"Database"=>$database,
"CharacterSet" => "UTF-8");
/* Connect using SQL Server Authentication. */
$conn = sqlsrv_connect( $server, $connectionInfo);
?>
$conn to perform sql_query()