Q:

PHP connect to SQL server with a windows account

I am trying to connect to a SQL server database with a windows account.  In sql managment studio, I can open the database with this account but not with my php application.  This user is not a sql user, but he have the right on the SQL database. 
I tried with a sql user and it works with my php application. 
Is it possible to use my windows account from the php application, and not a specifique sql user? 

A:

sqlsrv_connect
By Default it trys to establish a Connection with a Windows Auth.  u can try the snipped below.  If u have to use a defined WindowsUser to Login, try the Code from the documentation link above.  
$serverName = "serverName\sqlexpress"; //serverName\instanceName

// The connection will be attempted using Windows Authentication. 
$connectionInfo = array( "Database"=>"dbName");
$conn = sqlsrv_connect( $serverName, $connectionInfo);

if( $conn ) {
     echo "Connection established.<br />";
}else{
     echo "Connection could not be established.<br />";
     die( print_r( sqlsrv_errors(), true));
}

