I have the following environment:
I want to use the new PHP 5.5.0
Official driver from Microsoft has now been released (12/12/2014) .. you can download it here
Version 3.1 now supports PHP 5.5 and requires Microsoft ODBC Driver 11 (or higher) for SQL Server
PHP 5.5 compiled with VC11, so the driver must be compiled with VC11 too. You can download PHP SQL Server driver (compiled with VC11) from here:
SQL Server PHP Driver For PHP 5.5