I'm trying to connect from php to Azure DB by
$connectionInfo = array("UID" => "xxx@xxx", "pwd" => "xxx", "Database" => "xxx");
$serverName = "tcp:xxx.database.windows.net,1433";
$conn = sqlsrv_connect($serverName, $connectionInfo);
But it gives me
Fatal error: Call to undefined function sqlsrv_connect() in C:\wamp\www...\index.php on line 19