Php cannot connect to SQL Server 2008 (using pdo dblib)

I have SQL Server 2008 R2 (running on Windows Server 2008 64bit) which I am trying to connect from PHP

My server PHP config:

CentOS 6.6

PHP 5.5.24 (compiled --with-mssql = / usr / local / freetds --with-pdo-dblib = / usr / local / freetds)

Apache 2.4.12

SELinux disabled (as per this solution: PDO DBLIB, access to SQL Server 2008 and 2012 )

I wrote the following PHP code to connect to a SQL server:

try {
    require "classes/mypdo.class.php";
    $pdo = new MyPDO('dblib:dbname=myDB;host=myServer', 'myUser', 'myPassword');
    $pdo->debug = true;
} catch (PDOException $e) {
    die("Connection failed: {$e->getMessage()}");


Connection failed with error:

Connection failed: SQLSTATE[HY000] Unknown host machine name (severity 2)


I've tried other DSN syntaxes like:

$pdo = new MyPDO('dblib:host=', 'myUser', 'myPassword');
$pdo = new MyPDO('dblib:host=', 'myUser', 'myPassword');
$pdo = new MyPDO('dblib:host=myServer', 'myUser', 'myPassword');


and many more options ... When I use IP instead of DSN, the error is:

Connection failed: SQLSTATE[HY000] Unable to connect: Adaptive Server is unavailable or does not exist (severity 9)



tds version = 7.1
dump file = /tmp/freetds.log
timeout = 10
connect timeout = 10
text size = 64512
client charset = UTF-8

host =
port = 1433
tds version = 7.1


I suspect PHP is ignoring freetds.conf (cannot validate it).

When I use tsql the connection works.

tsql -S myServer -U MyUser -P MyPassword
locale is "en_US.UTF-8"
locale charset is "UTF-8"
using default charset "UTF-8"


What is the reason for PHP refusing to connect to SQL Server?


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1 answer

Sometimes there are setup problems inside php.ini

Please try to change:

mssql.secure_connection = Off



mssql.secure_connection = On




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