How to connect to MSSQL from PHP7.0?

Question

PHP

Configured PHP according to this https://stackoverflow.com/questions/34377338/linux... instructions (I only had to add .so to the file names in the config).
Wrote a simple code

$serverName = "192.168.1.1\INSTANCENAME";
$connectionInfo = array("Database"=>"DBNAME", "UID"=>"user", "PWD"=>"password");
$conn = sqlsrv_connect($serverName, $connectionInfo);
$sql = "select * from table";
$stmt = sqlsrv_query($conn, $sql);
print_r($stmt);
sqlsrv_close($conn);

When executed, it hangs for a long time, nothing happens, then it stops.
Meanwhile, this line

sqlcmd -S 192.168.1.1 -d DBNAME -U user -P password -Q "select * from table"

executed from the same machine where nginx+php is installed gives the desired result.
I checked that the packets go in both cases, only in the first one the first one comes and then only the keepalive falls, in the second case everything is as it should be. Tell me where is the problem? Maybe there are other PHP7 + mssql options?
PS while writing, I decided to check this option
$serverName = "192.168.1.1";
, then the question is transformed, how to connect to different instances of the server?

Answer 1

Different copies hang on different ports.

Answer 2

$link = mssql_connect('ip', 'user', 'pass');
mssql_select_db('bd, $link);
mb_internal_encoding('utf8');
Doesn't work in branch 7?