note 115005 added to ref.pdo-sqlsrv.connection

Adding the backslash solved the problem for me. Here's my functioning localdb connection string: new PDO("sqlsrv:Server=(localdb)\\v11.0 ; Database = my_db ; AttachDBFilename = C:\Users\user\my_db.mdf", "", ""); ---- Server IP: 72.52.91.14 Probable Submitter: 203.52.129.88 ---- Manual Page -- http://php.net/manual/en/ref.pdo-sqlsrv.connection.php Edit -- https://master.php.net/note/edit/115005 Del: integrated -- https://master.php.net/note/delete/115005/integrated Del: useless -- https://master.php.net/note/delete/115005/useless Del: bad code -- https://master.php.net/note/delete/115005/bad+code Del: spam -- https://master.php.net/note/delete/115005/spam Del: non-english -- https://master.php.net/note/delete/115005/non-english Del: in docs -- https://master.php.net/note/delete/115005/in+docs Del: other reasons-- https://master.php.net/note/delete/115005 Reject -- https://master.php.net/note/reject/115005 Search -- https://master.php.net/manage/user-notes.php